Omron relays. General Purpose Relays. MY
Miniature Power RelaysNew Latching Levers for Circuit Checking Added to Our Bestselling MY Generalpurpose Relays
Model Number Structure
Structure  Relays with Plugin Terminals 
PCB terminals 
Case surface mounting 

Classification  Number of poles 
With operation indicator 
Without operation indicator 
With latching lever 

Standard models (compliant with Electrical Appliances and Material Safety Act) 
2  MY2N *  MY2 *  MY2IN(S) *  MY202  MY2F  
Bifur cated 
MY2ZN  MY2Z  
3  MY3N  MY3  MY302  MY3F  
4  MY4N *  MY4 *  MY4IN(S) *  MY402  MY4F  
Bifur cated 
MY4ZN *  MY4Z *  MY4ZIN(S) *  MY4Z02  MY4ZF  
Models with diode for coil surge absorption (DC coil specification only) 
2  MY2ND2 *  MY2D *  MY2IND2(S) *      
Bifur cated 
MY2ZND2  MY2ZD  
3  MY3ND2  MY3D  
4  MY4ND2 *  MY4D *  MY4IND2(S) *  
Bifur cated 
MY4ZND2 *  MY4ZD *  MY4ZIND2(S) *  
Models with CR circuit for coil surge absorption (AC coil specification only) 
2  MY2NCR *  MY2CR *    
4  MY4NCR *  MY4CR *  MY4INCR(S) *  
Bifur cated 
MY4ZNCR *  MY4ZCR *  MY4ZINCR(S) *  
Models with high contact reliability 
4  Bifur cated 
  MY4ZCBG  
Plastic sealed models  4  MYQ4N  MYQ4  MYQ402  
Bifur cated 
MYQ4Z  MYQ4Z02  
Latching models (coil latching) 
2  MY2K  MY2K02  
Hermetic models  4  MY4H  MY4H0  
Bifur cated 
MY4ZH  MY4ZH0 
(This does not include models with high contact reliability or plastic sealed, latching, or hermetically sealed
models.)
2. Models with an asterisk (*) next to them are new versions.
3. The standard models with plugin terminals, models with coil surge absorption diodes, and models with coil
surge absorption CR circuits were used in combination with the PYF[]AE, PYF[]S and PYF[]PU for the
EC Declaration of Conformity. These products display the CE Marking.
4. Products cannot be manufactured for the cells with a diagonal line. Ask your OMRON representative for details
on manufacturing products for cells containing "" in the above table.
Miniature Power Relays: MY2
Classification 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Standard models  MY2  12, 24, 100/110, or 200/220 VAC  110/120 or 220/240 VAC 
12, 24, 48, or 100/110 VDC  
Models with builtin operation indicators 
MY2N  12, 24, 100/110, 110/120, 200/220, or 220/240 VAC  
12, 24, 48, or 100/110 VDC  
Models with builtin diodes  MY2D  12, 24, or 100/110 VDC  48 VDC 
Models with builtin diodes and operation indicators 
MY2ND2  12, 24, 48, or 100/110 VDC  
Models with builtin CR circuits  MY2CR  100/110 or 200/220 VAC  110/120 or 220/240 VAC 
Models with builtin CR circuits and operation indicators 
MY2NCR  100/110 or 200/220 VAC  110/120 or 220/240 VAC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
3. The above models and specifications are new versions in the MY Series.
4. Except for MY2(N)CR Relays with the above voltage specifications, all Relays have a height of 53 mm or less.
If Mounting Brackets are required, refer to catalog for selection information.
Miniature Power Relays: MY2Z
Classification 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Standard models  MY2Z  100/110 or 200/220 VAC  12, 24, 100/120, or 200/240 VAC 
12 or 24 VDC  48 or 100/110 VDC  
Models with builtin operation indicators 
MY2ZN  100/110 or 200/220 VAC  12, 24, 100/120, or 200/240 VAC 
24 VDC  12, 48, or 100/110 VDC  
Models with builtin diodes  MY2ZD  24 VDC  12 or 100/110 VDC 
Models with builtin diodes and operation indicators 
MY2ZND2  24 or 100/110 VDC  12 VDC 
Models with builtin CR circuits  MY2ZCR  100/110 or 200/220 VAC  
Models with builtin CR circuits and operation indicators 
MY2ZNCR  100/110 VAC  200/220 VAC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
Miniature Power Relays: MY3
Classification 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Standard models  MY3  24, 100/110, 200/220, or 220/240 VAC  12, or 110/120 VAC 
12, 24, or 100/110 VDC  48 VDC  
Models with builtin operation indicators 
MY3N  24, 100/110, 200/220, or 220/240 VAC  12, or 110/120 VAC 
24 VDC  12, 48, or 100/110 VDC  
Models with builtin diodes  MY3D  24 VDC  12 or 100/110 VDC 
Models with builtin diodes and operation indicators 
MY3ND2  24 VDC  12 or 100/110 VDC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
Miniature Power Relays: MY4
Classification 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Standard models  MY4  24, 100/110, or 200/220 VAC  12, 110/120, or 220/240 VAC 
12, 24, 48, or 100/110 VDC  
Models with builtin operation indicators 
MY4N  12, 24, 100/110, 110/120, 200/220, or 220/240 VAC 

12, 24, 48, or 100/110 VDC  
Models with builtin diodes  MY4D  12, 24, 48, or 100/110 VDC  
Models with builtin diodes and operation indicators 
MY4ND2  12, 24, or 100/110 VDC  48 VDC 
Models with builtin CR circuits  MY4CR  100/110 or 200/220 VAC  110/120 or 220/240 VAC 
Models with builtin CR circuits and operation indicators 
MY4NCR  100/110, 110/120, or 200/220 VAC  220/240 VAC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
3. The above models and specifications are new versions in the MY Series.
4. Except for MY4(N)CR Relays with the above voltage specifications, all Relays have a height of 53 mm or less.
If Mounting Brackets are required, refer to catalog for selection information.
Miniature Power Relays: MY4Z
Classification 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Standard models  MY4Z  100/110 or 200/220 VAC  110/120 or 220/240 VAC 
12, 24, 48, or 100/110 VDC  
Models with builtin operation indicators  MY4ZN  100/110 or 200/220 VAC  24, 110/120, or 220/240 VAC 
24 or 100/110 VDC  12 or 48 VDC  
Models with builtin diodes  MY4ZD  24 or 100/110 VDC  12 or 48 VDC 
Models with builtin diodes and operation indicators 
MY4ZND2  12, 24, 48, or 100/110 VDC  
Models with builtin CR circuits  MY4ZCR  100/110 or 200/220 VAC  110/120 or 220/240 VAC 
Models with builtin CR circuits and operation indicators 
MY4ZNCR  100/110 or 200/220 VAC  110/120 or 220/240 VAC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
3. The above models and specifications are new versions in the MY Series.
Miniature Power Relays with Latching Levers: MY(S)
Example: MY2IN 110/110 VAC (S)
Classification 
Contact configuration 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Models with builtin operation indicators 
2  MY2IN (S)    100/110 or 200/220 VAC 
12, 24, or 48 VDC    
4  MY4IN (S)    100/110 or 200/220 VAC  
12, 24, or 48 VDC    
4 bifurcated  MY4ZIN (S)    100/110 or 200/220 VAC  
  12, 24, or 48 VDC  
Models with builtin diode for coil surge absorption 
2  MY2IND2 (S)  12 or 24 VDC  48 VDC 
4  MY4IND2 (S)  24 VDC  12 or 48 VDC  
4 bifurcated  MY4ZIND2 (S)  24 VDC  12 or 48 VDC  
Models with builtin CR circuit for coil surge absorption 
4  MY4INCR (S)    100/110 or 200/220 VAC 
4 bifurcated  MY4ZINCR (S)    100/110 or 200/220 VAC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
Relays with PCB Terminals: MY[]02
Number of poles 
Classification  Model  Rated voltage (V)  
Standard products  Madetoorder items  
2 poles  Models with single contacts 
MY202  100/110, 200/220, or 200/240 VAC  12, 24, 100, or 110/120 VAC 
12, 24 or 48 VDC  100/110 VDC  
3 poles  Models with single contacts 
MY302  100/110 or 200/220 VAC  12, 24, 110/120, or 220/240 VAC 
24 VDC  12, 48, or 100/110 VDC  
4 poles  Models with single contacts 
MY402  100/110 or 200/220 VAC  12, 24, 110/120, or 220/240 VAC 
12, 24 or 100/110 VDC  48 VDC  
Bifurcated contacts  MY4Z02    100/110, 110/120, or 200/220 VAC  
100/110 VDC  12, 24, or 48 VDC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
Casesurfacemounting Relays: MY[]F
Number of poles 
Classification  Model  Rated voltage (V)  
Standard products  Madetoorder items  
2 poles  Models with single contacts  MY2F  24, 110/110, 100/120 or 200/220 VAC  220/240 VAC 
12 or 24 VDC  48 or 100/110 VDC  
3 poles  Models with single contacts  MY3F  100/110 VAC  24 or 200/220 VAC 
  24 or 100/110 VDC  
4 poles  Models with single contacts  MY4F  100/110 or 200/220 VAC  24 or 110/120 VAC 
12 or 24 VDC  48 or 100/110 VDC  
Bifurcated contacts  MY4ZF  200/220 VAC    
  12 or 24 VDC 
2. Ask your OMRON representative for details on product specifications and the ability to manufacture products
with voltages other than the above coil specifications.
Miniature Power Relays: MY4ZCBG
Classification 
Model  Rated voltage (V)  
Standard products  Madetoorder items  
Standard models  MY4ZCBG  100/110 or 200/220 VAC  110/120 VAC 
24 or 100/110 VDC  12 or 48 VDC  
Models with builtin operation indicators  MY4ZNCBG    100/110 or 200/220 VAC 
  24 VDC 
Plastic Sealed Relays: MYQ
Relays with Plugin or Soldered Terminals
Type 
4 poles  
Classification  Model  Rated voltage (V)  
Models with single contacts 
Standard models  MYQ4  100/110, 110/120, 200/220, or 220/240 VAC 
24 VDC  
Models with builtin operation indicators 
MYQ4N  24, 100/110, 110/120, 200/220, or 220/240 VAC  
12, 24, 48, or 100/110 VDC  
Bifurcated contacts  Standard models  MYQ4Z  100/110, 110/120, or 200/220 VAC 
12 or 24 VDC 
Relays with PCB Terminals
Type  4 poles  
Classification  Model  Rated voltage (V) 
Models with single contacts  MYQ402  50, 200/220, or 220/240 VAC 
24 VDC  
Bifurcated contacts  MYQ4Z02  100/110 VAC 
24 or 48 VDC 
Latching Relays: MYK
Relays with Plugin or Soldered Terminals
Number of poles  2 poles  
Classification  Model  Rated voltage (V) 
Standard models  MY2K  12 VAC 
24 VAC  
100 VAC  
100/110 VAC  
12 VDC  
24 VDC  
48 VDC 
Relays with PCB Terminals
Number of poles  2 poles  
Classification  Model  Rated voltage (V) 
Standard models  MY2K02  24 VAC 
100 VAC  
12 VDC  
24 VDC 
Hermetically Sealed Relays: MYH
Relays with Plugin or Soldered Terminals
Type  4 poles  
Classification  Model  Rated voltage (V) 
Models with single contacts  MY4H  24, 100/110, or 110/120 VAC 
12, 24, 48, or 100/110 VDC  
Bifurcated contacts  MY4ZH  24, 100/110, or 110/120 VAC 
12, 24, 48, or 100/110 VDC 
Relays with PCB Terminals
Type  4 poles  
Classification  Model  Rated voltage (V) 
Models with single contacts  MY4H0  110/120 VAC 
24 VDC  
Bifurcated contacts  MY4ZH0  24 or 100/110 VDC 
Options (Order Separately)
Connection Socket and Mounting Bracket Selection Table
Connecting method 
Frontmounting Sockets (PYF[])  
Mounting method  Track or screw mounting  Screw mounting only 
Track or screw mounting 

Terminal Type  Solder terminals  PushIn Plus TerminalBlock *3 

Screw terminal size: M3 
Screw terminal size: M3 (finger protection structure) *2 
Screw terminal size: M3.5 

Number of pins 
(Sold separately: Holddown Clips) *1  With Release Lever 

8  MY2[] (except for MY2K[] and MY2Z[]CR) 
PYF08A (PYCA1) 
PYF08AE (PYCA1) 
  PYF08M (PYCP) 
PYF08PU  
MY2I(S) *5 
PYF08A (PYCE1) 
PYF08AE (PYCE1) 

MY2Z[]CR *6 
PYF08A (Y92H3) 
PYF08AE (Y92H3) 
  
11  MY3[]  PYF11A (PYCA1) 
        
14  MY4[] MY4H MYQ4 MY4(S) MY2K 
PYF14A (PYCA1) 
PYF14AE (PYCA1) 
PYF14T (PYCA1) 
  PYF14PU  
Connecting method  Backmounting Sockets (PY[])  
Mounting method  
Terminal Type  Solder terminals  Wrapping terminals  Relays with PCB Terminals *4 

Terminal length: 25 mm 
Terminal length: 20 mm 

Number of pins 
Without Mounting Brackets *1 
With Mounting Brackets 
Without Mounting Brackets *1 
With Mounting Brackets 
Without Mounting Brackets *1 
With Mounting Brackets 
(Sold separately: Holddown Clips) *1 

8  MY2[] (except for MY2K[] and MY2Z[]CR) 
PY08 (PYCP) 
PY08Y1  PY08QN (PYCP) 
PY08QNY1  PY08QN2 (PYCP) 
PY08QN2Y1  PY0802 (PYCP) 

MY2I(S) *5 

MY2Z[]CR *6 
PY08 (PYC1) 
PY08Y3  PY08QN (PYC1) 
  PY08QN2 (PYC1) 
  PY0802 (PYC1) 

11  MY3[]  PY11 (PYCP) 
PY11Y1  PY11QN (PYCP) 
PY11QNY1  PY11QN2 (PYCP) 
PY11QN2Y1  PY1102 (PYCP) 

14  MY4[] MY4H MYQ4 MY4(S) MY2K 
PY14 (PYCP) 
PY14Y1  PY14QN (PYCP) 
PY14QNY1  PY14QN2 (PYCP) 
PY14QN2Y1  PY1402 (PYCP) 
*1. The information in parentheses is the model number of the applicable Mounting Bracket. Mounting Brackets are sold in sets of two. However, the PYCP is just one Mounting Bracket.
*2. The PYF[]AE has a terminal cover with finger protection. The Socket and Terminal Cover are integrated into one unit. Round terminals cannot be used. Use forked terminals or ferrules instead.
*3. A PushIn Plus Terminal Block Socket functions as a release lever to hold or remove a Relay. Refer to PYF[][]PU/P2RF[][]PU for details.
*4. If an MY[]I(S) Relay with a Latching Lever is used in combination with a PY[]02 Socket for Relays with PCB Terminal Socket and PYCP Mounting Brackets, the lever will not operate.
*5. We recommends using the PYCE1 Mounting Bracket for a MY2I(S) Relay with Latching Lever. (If the PYCA1 is used with the MY2I(S), the latching lever will be blocked by the Mounting Bracket and the lever will not operate.)
*6. The Mounting Brackets are applicable for Relays with a height of 36 mm or less. If the Relay height is greater than 53 mm, use Y92H3 for the Frontmounting Socket and PYC1 for the Backmounting Socket. (The Y92H3 is a set of two Brackets and the PYC1 is just one Bracket.)
Socket Mounting Plate (t = 1.6) (Unit: mm)
Type  For mounting 1 Socket 
For mounting 8 Sockets 
For mounting 36 Sockets 

Item  Applicable Sockets  
Without protective bracket 
PY08, PY08QN(2), PY11, PY11QN(2), PY14, and PY14QN(2) 
PYP1  PYP18  PYP36 
With protective bracket 
PY08Y1, PY08QN(2)Y1, PY11Y1, PY11QN(2)Y1, PY14Y1, and PY14QN(2)Y1 
Note: You can cut the PYP18 and PYP36 to any required length.
Miniature Power Relays: MY2
Ratings
Operating Coils (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  12  106.5  91  46  0.17  0.33  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
24  53.8  46  180  0.69  1.3  
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  72.7  165  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.3  662  3.2  5.72  
48  17.6  2,725  10.6  21.0  
100/110  8.7/9.6  11,440  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value (at a coil temperature of +23° C).
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  5 A at 220 VAC 5 A at 24 VDC 
2 A at 220 VAC 2 A at 24 VDC 
Rated carry current  5 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  5 A  
Contact configuration  DPDT  
Contact structure  Single  
Contact materials  Ag  
Type  Standard models  Model with builtin operation indicator, diode, or CR circuit 
Ambient operating temperature *1  55 to 70°C  55 to 60°C *2 
Ambient operating humidity  5% to 85% 
*2. This limitation is due to the diode junction temperature and elements used.
Characteristics
Type  Standard models 
Models with builtin operation indicators 
Models with builtin CR circuits 
Models with builtin diodes 
Model with builtin operation indicator and diode 
Model with builtin operation indicator and CR circuit 

Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations min. DC: 100,000,000 operations min. (switching frequency: 18,000 operations/h) 

Electrical *4  500,000 operations min. (rated load, switching frequency: 1,800 operations/h)  
Number of poles  2 poles  
Failure rate P value (reference value) *5  1 mA at 5 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method.
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23°C
*5. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays: MY2Z
Ratings
Operating Coil (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  12  106.5  91  46  0.17  0.33  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
24  53.8  46  180  0.69  1.3  
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
48  18.5  2,600  10.6  21.0  
100/110  9.1/10  11,000  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  5 A at 220 VAC 5 A at 24 VDC 
2 A at 220 VAC 2 A at 24 VDC 
Rated carry current  5 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  5 A  
Contact configuration  DPDT  
Contact structure  Bifurcated  
Contact materials  Au plating + Ag  
Type  Standard models  Model with builtin operation indicator, diode, or CR circuit 
Ambient operating temperature *1  55 to 70°C  55 to 60°C *2 
Ambient operating humidity  5% to 85% 
*2. This limitation is due to the diode junction temperature and elements used.
Characteristics
Type  Standard models 
Models with builtin operation indicators 
Models with builtin diodes 
Model with builtin operation indicator and diode 
Models with builtin CR circuits 
Models with builtin CR circuits and operation indicators 

Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  50,000,000 operations min. (operating frequency: 18,000 operations/h)  
Electrical *4  200,000 operations min. (rated load, switching frequency: 1,800 operations/h)  
Number of poles  2 poles  
Failure rate P value (reference value) *5  100 μA at 1 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method.
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23°C
*5. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays: MY3
Ratings
Operating Coil (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  12  106.5  91  46  0.17  0.33  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
24  53.8  46  180  0.69  1.3  
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
48  18.5  2,600  10.6  21.0  
100/110  9.1/10  11,000  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  5 A at 220 VAC 5 A at 24 VDC 
2 A at 220 VAC 2 A at 24 VDC 
Rated carry current  5 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  5 A  
Contact configuration  3PDT  
Contact structure  Single  
Contact materials  Ag  
Type  Standard models  Operation indicator and diode 
Ambient operating temperature *1  55 to 70°C  55 to 60°C *2 
Ambient operating humidity  5% to 85% 
*2. This limitation is due to the diode junction temperature and elements used.
Characteristics
Type  Standard models 
Models with builtin operation indicators 
Models with builtin diodes 
Model with builtin operation indicator and diode 

Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations min. DC: 100,000,000 operations min. (switching frequency: 18,000 operations/h) 

Electrical *4  500,000 operations min. (rated load, switching frequency: 1,800 operations/h)  
Number of poles  3 poles  
Failure rate P value (reference value) *5  1 mA at 5 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23°C
*5. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays: MY4
Ratings
Operating Coil (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  12  106.5  91  46  0.17  0.33  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
24  53.8  46  180  0.69  1.3  
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  72.7  165  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.3  662  3.2  5.72  
48  17.6  2,725  10.6  21.0  
100/110  8.7/9.6  11,440  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  3 A at 220 VAC 3 A at 24 VDC 
0.8 A at 220 VAC 1.5 A at 24 VDC 
Rated carry current  3 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  3 A  
Contact configuration  4PDT  
Contact structure  Single  
Contact materials  Au cladding + Ag alloy  
Type  Standard models  Model with builtin operation indicator, diode, or CR circuit 
Ambient operating temperature *1  55 to 70°C  55 to 60°C *2 
Ambient operating humidity  5% to 85% 
*2. This limitation is due to the diode junction temperature and elements used.
Characteristics
Type  Standard models 
Models with builtin operation indicators 
Models with builtin CR circuits 
Models with builtin diodes 
Model with builtin operation indicator and diode 
Model with builtin operation indicator and CR circuit 

Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations min. DC: 100,000,000 operations min. (switching frequency:: 18,000 operations/h) 

Electrical *4  200,000 operations min. (rated load, switching frequency: 1,800 operations/h)  
Number of poles  4 poles  
Failure rate P value (reference value) *5  1 mA at 1 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays: MY4Z
Ratings
Operating Coil (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  12  106.5  91  46  0.17  0.33  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
24  53.8  46  180  0.69  1.3  
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  72.7  165  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.3  662  3.2  5.72  
48  17.6  2,725  10.6  21.0  
100/110  8.7/9.6  11,440  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  3 A at 220 VAC 3 A at 24 VDC 
0.8 A at 220 VAC 1.5 A at 24 VDC 
Rated carry current  3 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  3 A  
Contact configuration  4PDT  
Contact structure  Bifurcated  
Contact materials  Au cladding + Ag alloy  
Type  Standard models  Model with builtin operation indicator, diode, or CR circuit 
Ambient operating temperature *1  55 to 70°C  55 to 60°C 
Ambient operating humidity  5% to 85% 
*2. This limitation is due to the diode junction temperature and elements used.
Characteristics
Type  Standard models 
Models with builtin operation indicators 
Models with builtin CR circuits 
Models with builtin diodes 
Model with builtin operation indicator and diode 
Model with builtin operation indicator and CR circuit 

Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  20,000,000 operations min. (switching frequency: 18,000 operations/h)  
Electrical *4  100,000 operations min. (rated load, switching frequency: 1,800 operations/h)  
Number of poles  4 poles  
Failure rate P value (reference value) *5  100 μA at 1 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays with Latching Levers: MY(S)
Ratings
Operating Coil
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  100/110  11.7/12.9  10/11  3,750  14.54  24.6  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  37.7  636  3.2  5.72  
48  18.8  2,560  10.6  21 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value.
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Number of poles  2 poles  
Load  Resistive load (cos φ = 1)  Inductive load (cos φ = 0.4, L/R = 7 ms)  
Rated load  5 A at 250 VAC 5 A at 30 VDC 
2 A at 250 VAC 2 A at 30 VDC 

Rated carry current  10 A *  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  10 A  
Contact configuration  Single  
Contact materials  Ag  
Number of poles  4 poles  4 poles (bifurcated)  
Load  Resistive load (cos φ = 1) 
Inductive load (cos φ = 0.4, L/R = 7 ms) 
Resistive load (cos φ = 1) 
Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  3 A at 250 VAC 3 A at 30 VDC 
0.8 A at 250 VAC 1.5 A at 30 VDC 
3 A at 250 VAC 3 A at 30 VDC 
0.8 A at 250 VAC 1.5 A at 30 VDC 
Rated carry current  5 A *  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  5 A  
Contact configuration  Single  Bifurcated  
Contact materials  Au cladding + Ag alloy  Au cladding + Ag alloy 
Type 
Model with builtin operation indicator, diode, or CR circuit 
Ambient operating temperature *1  55 to 70°C*2 
Ambient operating humidity  5% to 85% 
*2. This limitation is due to the diode junction temperature and elements used.
Characteristics
Type  2 poles  4 poles  4 poles (bifurcated)  
Contact resistance *1  100 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  1,000 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations min., DC: 100,000,000 operations min. (switching frequency: 18,000 operations/h) 
20,000,000 operations min. (switching frequency: 18,000 operations/h) 

Electrical *4  500,000 operations min. (rated load, switching frequency: 1,800 operations/h) 
200,000 operations min. (rated load, switching frequency: 1,800 operations/h) 
100,000 operations min. (rated load, switching frequency: 1,800 operations/h) 

Failure rate P value (reference value) *5 
1 mA at 5 VDC  1 mA at 1 VDC  100 μA at 1 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: When rated operating power is applied and ambient temperature is 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Relays with PCB Terminals: MY[]02
Ratings
Operating Coil (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  12  106.5  91  46  0.17  0.33  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
24  53.8  46  180  0.69  1.3  
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
48  18.5  2,600  10.6  21.0  
100/110  9.1/10  11,000  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value.
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Number of poles  2 or 3 poles  
Load  Resistive load  Inductive load (cos φ= 0.4, L/R = 7 ms)  
Rated load  5 A at 220 VAC 5 A at 24 VDC 
2 A at 220 VAC 2 A at 24 VDC 

Rated carry current  5 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  5 A  
Contact configuration  DPDT, 3PDT  
Contact structure  Single  
Contact materials  Ag  
Number of poles  4 poles  4 poles, bifurcated contacts  
Load  Resistive load  Inductive load (cos φ= 0.4, L/R = 7 ms) 
Resistive load  Inductive load (cos φ= 0.4, L/R = 7 ms) 
Rated load  3 A at 220 VAC 3 A at 24 VDC 
0.8 A at 220 VAC 1.5 A at 24 VDC 
3 A at 220 VAC 3 A at 24 VDC 
0.8 A at 220 VAC 1.5 A at 24 VDC 
Rated carry current  3 A  3 A  
Maximum contact voltage  250 VAC, 125 VDC  250 VAC, 125 VDC  
Maximum contact current  3 A  3 A  
Contact configuration  4PDT  4PDT  
Contact structure  Single  Bifurcated  
Contact materials  Au plating + Ag  Au plating + Ag 
Type  Standard models 
Ambient operating temperature *  55 to 70°C 
Ambient operating humidity  5% to 85% 
Characteristics
Number of poles  2 or 3 poles  4 poles  4 poles, bifurcated contacts 

Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations min. DC: 100,000,000 operations min. (switching frequency: 18,000 operations/h) 
AC: 20,000,000 operations min. (switching frequency: 18,000 operations/h) 

Electrical *4  500,000 operations min. (rated load, switching frequency: 1,800 operations/h) 
200,000 operations min. (rated load, switching frequency: 1,800 operations/h) 
100,000 operations min. (rated load, switching frequency: 1,800 operations/h) 

Number of poles  2 or 3 poles  4 poles  4 poles, bifurcated contacts  
Failure rate P value (reference value) *5 
1 mA at 5 VDC  1 mA at 1 VDC  100 μA at 1 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Casesurfacemounting Relays: MY[]F
Ratings
Operating Coil (Standard Models)
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  24  53.8  46  180  0.69  1.3  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
48  18.5  2,600  10.6  21.0  
100/110  9.1/10  11,000  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only (at 60 Hz).
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Number of poles  2 or 3 poles  4 poles  
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 

Rated load  5 A at 220 VAC 5 A at 24 VDC 
2 A at 220 VAC 2 A at 24 VDC 
3 A at 220 VAC 3 A at 24 VDC 
0.8 A at 220 VAC 1.5 A at 24 VDC 

Rated carry current  5 A  3 A  
Maximum contact voltage  250 VAC, 125 VDC  250 VAC, 125 VDC  
Maximum contact current  5 A  3 A  
Contact configuration  DPDT, 3PDT  4PDT  
Contact structure  Single  Single  
Contact materials  Ag  Au plating + Ag  
Type  Standard models  
Ambient operating temperature *  55 to 70°C  
Ambient operating humidity  5% to 85% 
Characteristics
Number of poles  2 or 3 poles  4 poles  
Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h  
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ min.  
Dielectric strength 
Between coil and contacts  2,000 VAC at 50/60 Hz for 1 min.  
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2  
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations min. DC: 100,000,000 operations min. (switching frequency: 18,000 operations/h) 

Electrical *4  500,000 operations min. (rated load, switching frequency: 1,800 operations/h) 
200,000 operations min. (rated load, switching frequency: 1,800 operations/h) 

Number of poles  2 or 3 poles  4 poles  
Failure rate P value (reference value) *5  1 mA at 5 VDC  1 mA at 1 VDC  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays: MY4ZCBG
Ratings
Operating Coil
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  100/110  11.7/12.9  10/11  3,750  14.54  24.6  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  94.07  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
100/110  9.1/10  11,000  45.60  86.20 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  1 A at 220 VAC 1 A at 24 VDC 
0.3 A at 220 VAC 0.5 A at 24 VDC 
Rated carry current  1 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  1 A  1 A 
Contact structure  Crossbar bifurcated  
Contact materials  Au cladding + AgPd 
Characteristics
Contact resistance *1  100 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h 
Electrical  1,800 operations/h  
Insulation resistance *3  100 MΩ  
Dielectric strength 
Between coil and contacts 
2,000 VAC at 50/60 Hz for 1 min. 
Between contacts of different polarity 

Between contacts of the same polarity 
700 VAC at 50/60 Hz for 1 min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude) 
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2 
Malfunction  200 m/s2  
Endurance  Mechanical  5,000,000 operations min. (operating frequency: 18,000 operations/hr) 
Electrical *4  50,000 operations min. (switching frequency: 1,800 operations/h) at rated load  
Failure rate P value (reference value) *5 
100 μA at 1 VDC  
Ambient operating temperature  .25 to 70°C (with no icing or condensation)  
Ambient operating humidity  5% to 85%  
Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied, not including contact bounce.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Plastic Sealed Relays: MYQ
Ratings
Operating Coil
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  24  53.8  46  180  0.69  1.3  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
200/220  6.2/6.8  5.3/5.8  12,950  54.75  91.07  
220/240  4.8/5.3  4.2/4.6  18,790  83.5  136.4  
DC  12  75  160  0.734  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
48  18.5  2,600  10.6  21.0  
100/110  9.1/10  11,000  45.6  86.0 
for AC rated current and ±15% for DC coil resistance.
2. The AC coil resistance and coil inductance values are reference values only.
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  1 A at 220 VAC, 1 A at 24 VDC  0.5 A at 220 VAC, 0.5 A at 24 VDC 
Rated carry current  1 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  1 A  
Maximum switching capacity (reference value) 
220 VAC, 24 W  110 VAC, 12 W 
Failure rate P value (reference value)  Single contacts: 1 mA at 1 VDC, Bifurcated contacts: 100 μA at 1 VDC  
Contact structure  Single/bifurcated  
Contact materials  Au plating + Ag 
Ambient operating temperature 
55 to 60°C * 
Ambient operating humidity  5% to 85% 
Characteristics
Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h 
Rated load  1,800 operations/h  
Dielectric strength 
Between coil and contacts 
1,500 VAC at 50/60 Hz for 1 min. 
Between contacts of different polarity 
1,500 VAC at 50/60 Hz for 1 min.  
Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Insulation resistance *3  100 MΩ min.  
Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude) 
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2 
Malfunction  200 m/s2  
Endurance  Mechanical  AC: 50,000,000 operations (5,000,000 *4) min., DC: 100,000,000 operations (5,000,000 *4) min. (switching frequency: 18,000 operations/h) 
Electrical *5  200,000 operations min. (100,000 operations *4) (rated load, switching frequency: 1,800 operations/h) 

Weight  Approx. 35 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied, not including contact bounce.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. This value is for bifurcated contacts.
*5. Ambient temperature condition: 23° C
Latching Relays: MYK
Ratings
Operating Coil
Item  Set coil  Reset coil  Set voltage (V) 
Reset voltage (V) 
Maximum voltage (V) 
Power consumption (VA, W) 

Rated voltage (V) 
Rated current (mA) 
Coil resist ance (Ω) 
Rated current (mA) 
Coil resist ance (Ω) 
Set coil  Reset coil 

50 Hz  60 Hz  50 Hz  60 Hz  
AC  12  57  56  72  39  38.2  130  80% max. 
80% max. 
110% max. of rated voltage 
Approx. 0.6 to 0.9 (at 60 Hz) 
Approx. 0.2 to 0.5 (at 60 Hz) 
24  27.4  26.4  320  18.6  18.1  550  
100  7.1  6.9  5,400  3.5  3.4  3,000  
DC  12  110  110  50  235  Approx. 1.3 
Approx. 0.6 

24  52  470  25  940  
48  27  1,800  16  3,000 
2. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/20%
for the AC rated current and ±15% for the DC coil resistance.
3. The AC coil resistance is a reference value only.
4. Operating characteristics were measured at a coil temperature of 23°C.
5. The maximum voltage capacity was measured at an ambient temperature of 23°C.
Contact Ratings
Load  Resistive load  Inductive load (cos φ = 0.4, L/R = 7 ms) 
Rated load  3 A at 220 VAC 3 A at 24 VDC 
0.8 A at 220 VAC 1.5 A at 24 VDC 
Rated carry current  3 A  
Maximum contact voltage  250 VAC, 125 VDC  
Maximum contact current  3 A  3 A 
Contact structure  Single  
Contact materials  Au plating + Ag  
Ambient operating temperature  55 to 60°C *  
Ambient operating humidity  5% to 85% 
Characteristics
Contact resistance *1  50 mΩ max.  
Set  Time *2  AC: 30 ms max., DC: 15 ms max. 
Minimum pulse width  AC: 60 ms, DC: 30 ms  
Reset  Time *2  AC: 30 ms max., DC: 15 ms max. 
Minimum pulse width  AC: 60 ms, DC: 30 ms  
Maximum operating frequency 
Mechanical  18,000 operations/h 
Rated load  1,800 operations/h  
Insulation resistance *3  100 MΩ  
Dielectric strength 
Between coil and contacts 
1,500 VAC at 50/60 Hz for 1 min. 
Between contacts of different polarity 

Between contacts of the same polarity 
1,000 VAC at 50/60 Hz for 1 min.  
Between set/ reset coils 

Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude) 
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2 
Malfunction  200 m/s2  
Endurance  Mechanical  100,000,000 operations min. (switching frequency: 18,000 operations/h) 
Electrical *4  200,000 operations min. (at 1,800 operations/hr, rated load)  
Failure rate P value (reference value) *5 
1 mA at 1 VDC  
Weight  Approx. 30 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied, not including contact bounce.
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. Ambient temperature condition: 23° C
*5. This value was measured at a switching frequency of 120 operations per minute.
Hermetically Sealed Relays: MYH
Ratings
Operating Coil
Item  Rated current (mA) 
Coil resist ance (Ω) 
Coil inductance (H)  Must operate voltage (V) 
Must release voltage (V) 
Maximum voltage (V) 
Power con sumption (VA, W) 

Rated voltage (V) 
50 Hz  60 Hz  Armature OFF 
Armature ON 

AC  24  53.8  46  180  0.69  1.3  80% max. *1 
30% min. *2 
110% of rated voltage 
Approx. 0.9 to 1.3 (at 60 Hz) 
100/110  11.7/12.9  10/11  3,750  14.54  24.6  
110/120  9.9/10.8  8.4/9.2  4,430  19.2  32.1  
DC  12  75  160  0.73  1.37  10% min. *2 
Approx. 0.9  
24  36.9  650  3.2  5.72  
48  18.5  2,600  10.6  21.0  
100/110  9.1/10  11,000  45.6  86.2 
for the AC rated current and ±15% for the DC coil resistance.
2. The AC coil resistance and inductance values are reference values only
3. Operating characteristics were measured at a coil temperature of 23°C.
4. The maximum voltage capacity was measured at an ambient temperature of 23°C.
*1. There is variation between products, but actual values are 80% max.
To ensure operation, apply at least 80% of the rated value
*2. There is variation between products, but actual values are 30% minimum for AC and 10% minimum for DC. To
ensure release, use a value that is lower than the specified value.
Contact Ratings
Load  Models with single contacts  Bifurcated contacts  
Resistive load  Inductive load cos φ = 0.4 L/R = 7 ms 
Resistive load  Inductive load cos φ = 0.4 L/R = 7 ms 

Rated load  3 A at 110 VAC 3 A at 24 VDC 
0.8 A at 110 VAC 1.5 A at 24 VDC 
3 A at 110 VAC 3 A at 24 VDC 
0.8 A at 110 VAC 1.5 A at 24 VDC 

Rated carry current  3 A  3 A  
Maximum contact voltage  125 VAC, 125 VDC  125 VAC, 125 VDC  
Maximum contact current  3 A  3 A  
Contact structure  Single  Bifurcated  
Contact materials  Au plating + Ag  
Ambient operating temperature  25 to 60°C *  
Ambient operating humidity  5% to 85% 
Characteristics
Contact resistance *1  50 mΩ max.  
Operation time *2  20 ms max.  
Release time *2  20 ms max.  
Maximum operating frequency 
Mechanical  18,000 operations/h 
Rated load  1,800 operations/h  
Insulation resistance *4  100 MΩ min.  
Dielectric strength 
Between coil and contacts  1,000 VAC at 50/60 Hz for 1 min. (700 VAC between contacts of the same polarity.) 
Between contacts of different polarity 

Vibration resistance 
Destruction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude) 
Malfunction  10 to 55 to 10 Hz, 0.5mm single amplitude (1.0mm double amplitude)  
Shock resistance 
Destruction  1,000 m/s2 
Malfunction  200 m/s2  
Endurance  Mechanical  50,000,000 operations (5,000,000 operations *4) min. (operating frequency: 18,000 operations/h) 
Electrical *5  100,000 operations (50,000 operations*4) min. rated load, switching frequency: 1,800 operations/h) 

Failure rate P value (reference value) *6 
Single contacts: 100 μA at 1 VDC Bifurcated contacts: 100 μA at 100 mVDC 

Weight  Approx. 50 g 
*1. Measurement conditions: 1 A at 5 VDC using the voltage drop method
*2. Measurement conditions: With rated operating power applied, not including contact bounce.
Ambient temperature condition: 23° C
*3. Measurement conditions: For 500 VDC applied to the same location as for dielectric strength measurement.
*4. This value is for bifurcated contacts.
*5. Ambient temperature condition: 23° C
*6. This value was measured at a switching frequency of 120 operations per minute.
Miniature Power Relays: MY2
MY2, MY2N, MY2D, MY2ND2, MY2CR, and MY2NCR
Miniature Power Relays: MY2Z
MY2Z, MY2ZN, MY2ZD, MY2ZND2, MY2ZCR, and MY2ZNCR
Miniature Power Relays: MY3
MY3, MY3N, MY3D, and MY3ND2
Miniature Power Relays: MY4
MY4, MY4N, MY4D, MY4ND2, MY4CR, and MY4NCR
Miniature Power Relays: MY4Z
MY4Z, MY4ZN, MY4ZD, MY4ZND2, MY4ZCR, and MY4ZNCR
Miniature Power Relays with Latching Levers: MY(S)
MY2IN (S)
MY2IND2 (S)
MY4 (Z) IN (S)
MY4 (Z) IND2 (S)
MY4 (Z) INCR (S)
Relays with PCB Terminals: MY[]02
Relays with PCB Terminals
MY[]02
The figures and dimensions given here are for the MY402.
The 2pole and 3pole models conform to these dimensions.
* Dimensions in parentheses are for the MY402.
Casesurfacemounting Relays: MY[]F
Casesurface mounting
MY[]F
4 poles, bifurcated contacts
The 1pole, 2pole, and 3pole models conform to these dimensions.
Miniature Power Relays: MY4ZCBG
MY4ZCBG
Plastic Sealed Relays: MYQ
Relays with Plugin Terminals or Soldered Terminals
MYQ4(Z)(N)
Relays with PCB Terminals
MYQ4(Z)02
Latching Relays: MYK
Relays with Plugin Terminals or Soldered Terminals
MY2K
Relays with PCB Terminals
MY2K02
Hermetically Sealed Relays: MYH
Relays with Plugin Terminals or Soldered Terminals
MY4(Z)H
Relays with PCB Terminals
MY4(Z)H0
Mounting Heights with Sockets
Frontmounting Sockets
(PYF[]A (E), PYF14T, PYF08M)
Note: 1. The PYF[]A can be mounted on a track or with screws.
2. The heights given in parentheses are the measurements for 53mmhigh Relays.
3. Use the PYCP Mounting Bracket for the PYF08M.
Backmounting Sockets
Solder terminals/Wrapping terminals
(PY[])
PushIn Plus Terminal Block Sockets
(PYF[]PU)
Relays with PCB Terminals
(PY[]02)