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Omron relays. General Purpose Relays. MM

Power Relay
MM

Stable Contact Reliability and Long Life

Available Models

When your order, specify the rated voltage.

Open Coils (with Solder Terminals)

Type Contact form Relay model Available rated voltage
Standard DP MM2 6, 12, 24, 50, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
3P MM3 100/(110), 200/(220) VAC
6, 12, 24, 48, 200/220 VDC
4P MM4 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
DC-switching DP MM2X 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
3P MM3X 100/(110), 200/(220) VAC
12, 24, 100/110 VDC
4P MM4X 100/(110), 200/(220) VAC
12, 24, 48, 100/110 VDC

Open Coils (with Screw Terminals)

Type Contact form Relay model Available rated voltage
Standard DP MM2B 6, 12, 24, 50, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
3P MM3B 6, 100/(110), 200/(220) VAC
12, 24, 100/110 VDC
4P MM4B 6, 100/(110), 200/(220) VAC
12, 24, 48, 100/110 VDC
DC-switching DP MM2XB 24, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
3P MM3XB 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
4P MM4XB 12, 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC

Cased Coils (Plug-in Terminals)

Type Contact form Relay model Available rated voltage
Standard DP MM2P 6, 12, 24, 50, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
3P MM3P 6, 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
4P MM4P 6, 24, 50, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
DC-switching DP MM2XP 6, 24, 100/(110), 125, 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
3P MM3XP 24, 50, 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
4P MM4XP 12, 24, 50, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
With built-in diode DP MM2P-D
MM4P-D
12, 24, 48, 100/110, 200/220 VDC
12, 24, 48, 100/110, 125, 200/220 VDC
DC-switching with built-in diode DP MM2XP-D
MM4XP-D
12, 24, 48, 100/110, 125, 200/220 VDC
12, 24, 48, 100/110, 125, 200/220 VDC
With operation indicator DP MM2PN 6, 24, 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 125, 200/220 VDC
3P MM3PN 100/(110), 200/(220) VAC
6, 12, 24, 48, 100/110, 200/220 VDC
4P MM4PN 24, 100/(110), 200/(220) VAC
24, 48, 100/110, 125, 200/220 VDC
DC-switching with operation indicator DP MM2XPN 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
3P MM3XPN 100/(110), 200/(220) VAC
24, 48, 100/110, 200/220 VDC
4P MM4XPN 100/(110), 200/(220) VAC
12, 24, 48, 100/110, 125, 200/220 VDC
Conforming to auxiliary power relay
specifications
4P MM4P-JD 100/(110), 110, 115, 200/(220), 220 VAC
24, 100/110, 125, 200/220 VDC
Conforming to auxiliary power relay
specifications for DC-switching
4P MM4XP-JD 100/(110), 110, 115, 200/(220) VAC
24, 48, 100/110, 125, 200/220 VDC

Accessories (Order Separately)

Mounting Brackets

Mounting Bracket (S bracket) R99-03MM

Sockets

Relay model DIN Track/Front-connecting Socket
(screw terminals)
Back-connecting Socket
(solder terminals)
MM2(X)P(-D) 8PFA PL08
MM3P 11PFA
mm_lineup5_1
PL11
mm_lineup5_2
MM3XP, MM4(X)P(N)(-D) 14PFA PL15
MM4(X)P-JD 14PFA ---

Open Coils (with Solder or Screw Terminals)

Rated voltage
(V)
Rated current (mA) Coil
resistance
(Ω)
Must-
operate
voltage
Must-
release
voltage
Max.
volt-
age
Power
consumption
(VA or W)
DP 3P or 4P DP 3P or
4P
50 Hz 60 Hz 50 Hz 60 Hz % of rated voltage Initial Rated
AC 6 790 655 1,120 950 1.1 0.5 80%
max.
30%
min.
(60 Hz)
25%
min.
(50 Hz)
110% Approx.
4.1 (DP)
Approx.
6.3 (3P
or 4P)
Approx.
3.5 (DP)
Approx.
5.1 (3P
or 4P)
12 395 325 560 480 4.7 2.0
24 195 160 280 240 19 8.5
50 94 78 134 114 82 36
100/(110) 47 39/45 67 57/66 340 150
200/(220) 23.5 19.5/22.5 33.5 28.5/33 1,540 620
DC 6 340 450 17.5 13.4 70%
max.
10%
min.
Approx. 2.1 (DP)
Approx. 2.7 (3P or
4P)
12 176 220 68 54
24 87 94 275 255
48 41 52 1,180 930
100/110 17/19 22/24.5 5,750 4,500
200/220 8.6/9.5 11/12 23,200 18,000
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/-20%
for AC rated current and ±15% for DC coil resistance.
2. The AC coil resistance values are reference values.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of
23°C and not continuously.

Cased Coils (Plug-in Terminals)

The rated current may vary if the Relay has a built-in operating indicator (See note 4.).

Rated
voltage
(V)
Rated current (mA) Coil
resistance
(Ω)
Coil inductance (H) Must-
oper-
ate
volt-
age
Must-
re-
lease
volt-
age
Max.
volt-
age
Power
con-
sumption
(VA or W)
DP 3P or 4P DP 3P
or
4P
DP 3P or 4P
50
Hz
60
Hz
50
Hz
60
Hz
Con-
tact
re-
lease
Con-
tact
oper-
ate
Con-
tact
re-
lease
Con-
tact
oper-
ate
% of rated voltage Ini-
tial
Rated
AC 6 690 590 975 850 1.1 0.5 0.02 0.02 0.01 0.03 80%
max.
30%
min.
(60
Hz)
25%
min.
(50
Hz)
110% Ap-
prox.
4.1
(DP)
Ap-
prox.
6.3
(3P
or
4P)
Ap-
prox.
3.5
(DP)
Ap-
prox.
5.1
(3P
or 4P)
12 345 295 490 430 4.7 2.0 0.07 0.01 0.04 0.07
24 170 145 245 210 19 8.5 0.28 0.41 0.18 0.28
50 82 70 117 102 82 36 1.2 1.7 0.75 1.2
100/
(110)
41 35/
40
58.5 51/
58
340 150 4.8 6.7 3 4.5
200/
(220)
20.5 17.5/
20
29 25.5/
29
1,540 620 20 25.6 12 19
DC 6 340 450 17.5 13.4 0.2 0.36 0.23 0.35 70%
max.
10%
min.
Approx. 2.1
(DP)
Approx. 2.7
(3P or 4P)
12 176 220 68 54 0.74 1.0 0.87 1.4
24 87 94 275 255 4.2 5.8 5.6 9.2
48 41 52 1,180 930 20.4 26 27.3 45.5
100/
110
17/19 22/24.5 5,750 4,500 81.6 92.5 61.4 96.5
200/
220
8.6/9.5 11/12 23,200 18,000 340 380 158 250
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/-20%
for AC rated current and ±15% for DC coil resistance.
2. The AC coil resistance and coil inductance values are for reference only.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of
23°C and not continuously.
5. The rated current of a model with a built-in LED indicator at 6, 12, 24, or 50 VAC or 6, 12, 24, or 48 VDC
increases by approx. 10 mA due to the current consumption of the LED. The rated current of a model with a
built-in neon lamp indicator at 100/(110) or 200/(220) VAC or 100/110 or 200/220 VDC increases by approx.
0.2 mA due to the current consumption of the neon lamp.

Coils (Conforming to Auxiliary Power Relay Specifications)

Rated
voltage
(V)
Rated current
(mA)
Coil
re-
sistance
(Ω)
Coil inductance
(H)
Must-
operate
voltage
Must-
release
voltage
Max.
volt-
age
Opera-
tion
level
(JEC-
174D)
Power
consumption
(VA or W)
50 Hz 60 Hz Contact
release
Contact
operate
% of rated voltage Initial Rated
AC 24 245 210 8.5 0.18 0.28 80% max. 30% min.
(60 Hz)
25% min.
(50 Hz)
110% B
Hot start
after coil
heated
Approx.
6.3
Approx.
5.1
50 117 102 36 0.75 1.2
100/
(110)
58.5 51/58 150 3 4.5
110 53 46 182 3.6 5.5
115 51 44 210 4 6.2
200/
(220)
29 25.5/29 620 12 19
220 26.5 23 780 15 21
DC 24 94 255 5.6 9.2 70% max. 10% min. Approx. 2.7
48 52 930 27.3 45.5
100/
110
22/24.5 4,500 61.4 96.5
125 22 5,800 90 130
200/
220
11/12 18,000 158 250
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/-20%
for AC rated current and ±15% for DC coil resistance.
2. The AC coil resistance and coil inductance values are for reference only.
3. Performance characteristic data are measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at 23°C and not continuously.

Contact Ratings

Standard Relays

Item Open Relays Cased Relays
MM2(B), MM3(B), MM4(B) MM2P(N, -D), MM3P(N), MM4P(N, -D)
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4, L/R=7 ms)
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4, L/R=7 ms)
Contact type Single
Contact material Ag
Rated load 15 A at 220 VAC
10 A at 24 VDC
7.5 A at 220 VAC
5 A at 24 VDC
Rated carry current 15 A 7.5 A
Max. switching voltage 250 VAC, 250 VDC 250 VAC, 250 VDC
Max. switching current 15 A 7.5 A
Max. switching power
(reference value)
3,300 VA at 240 W 1,700 VA at 120 W
Minimum permissible load
(reference value) *
5 VDC 10 mA
* This value is measured at 60 operations/min.

DC-switching Relays/Built-in Diode Relays

Item Open Relays Cased Relays
MM2X(B), MM3X(B), MM4X(B) MM2XP(-D), MM3XP, MM4XP(-D)
Resistive load
(cosφ = 1)
Inductive load
(L/R=7 ms)
Resistive load
(cosφ = 1)
Inductive load
(L/R=7 ms)
Contact type Single
Contact material Ag
Rated load 10 A at 110 VDC 7 A at 110 VDC 7 A at 110 VDC 6 A at 110 VDC
Rated carry current 15 A 7.5 A
Max. switching voltage 250 VAC, 250 VDC 250 VAC, 250 VDC
Max. switching current 15 A 7.5 A
Max. switching power
(reference value)
1,200 W at 20 VA *1 800 W at 20 VA *1 800 W at 20 VA *1 660 W at 20 VA *1
Minimum permissible load
(reference value) *2
5 VDC at 10 mA
Note: 1. When switching DC inductive loads at 125 V or more, an unstable region exists for a contact current of between
0.5 and 2.5 A. The Relay will not turn OFF in this region. Use a contact current of 0.5 A or less when switching
125 VDC or more.
2. If L/R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered
in application and the circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.
3. The switching capacity for an AC load is minute.
*1. Refer to Switching an AC Load with a DC-switching Model ("X" Model) on Data Sheet.
*2. This value is measured at 60 operations/min.

Contacts (Conforming to Auxiliary Power Relay Specifications)

Item MM4P-JD MM4XP-JD
Resistive load Inductive load
(cosΦ = 0.4, L/R = 7 ms)
Resistive load Inductive load
(cosΦ = 0.4, L/R = 7 ms)
Contact type Single
Contact material Ag
Rated load 5 A at 220 VAC, 5 A at 24 VDC 5 A at 110 VDC
Rated carry current 5 A
Max. switching voltage 250 VAC, 250 VDC
Max. switching current 5 A
Max. switching power
(reference value)
1,100 VA, 120 W, 30 W (L/R = 40 ms) 20 VA, 550 W, 40 W (L/R = 40 ms)
Note: 1. A model for DC loads is not in stable operation when switching an inductive load within a operating current range
between 0.5 and 2.5 A at a minimum of 125 VDC, where the load cannot be switched.
2. If L/R exceeds 7 ms when switching DC inductive loads, an arc-breaking time of up to 50 ms must be considered
in application and the circuit must be designed to ensure that an arc-breaking time of 50 ms is not exceeded.

Characteristics

Standard Relays

Item Open Relays Cased Relays
Contact resistance *2 25 mΩ max. 50 mΩ max.
Operate time *3 AC: 25 ms max. DC: 50 ms max.
Release time *3 30 ms max. (100 ms max. for Built-in Diode Relays)
Max. operating frequency Mechanical:7,200 operations/hr
Electrical:1,800 operations/hr (under rated load)
Insulation resistance *4 100 MΩ min. (at 500 VDC)
Dielectric strength 1,500 VAC, 50/60 Hz for 1 min between contacts of same polarity
2,000 VAC, 50/60 Hz for 1 min between contacts of different polarity (and between coil and
contacts)
Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance Destruction: 1,000 m/s2
Malfunction: 100 m/s2
Endurance Mechanical: 5,000,000 operations min. (at 7,200 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr under rated load) *5
Ambient temperature Operating: -10°C to 55°C (with no icing or condensation)
Ambient humidity Operating: 5% to 85%
Weight Standard models: DC-switching models
MM2 approx. 160 g
MM2X approx. 165 g
MM2XP approx. 225 g
MM3 approx. 270 g
MM3X approx. 275 g
MM3XP approx. 395 g
MM4 approx. 300 g
MM4X approx. 310 g
MM4XP approx. 420 g
MM2P approx. 220 g
MM3P approx. 360 g
MM4P approx. 410 g
*1. The data shown above are initial values.
*2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
*3. The operate or release time was measured with the rated voltage imposed with any contact bounce ignored at an
ambient temperature of 23°C.
*4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for
checking the dielectric strength.
*5. The electrical endurance was measured at an ambient temperature of 23°C.

Relays (Conforming to Auxiliary Power Relay Specifications)

Item Cased Relays
Contact resistance *2 50 mΩ max.
Operate time *3 AC: 25 ms max., DC: 50 ms max.
Release time *3 30 ms max.
Max. operating frequency Mechanical: 1,800 operations/hr
Electrical: 1,800 operations/hr (under rated load)
Insulation resistance *4 100 MΩ min.
Dielectric strength Between coil and contact: 2,000 VAC, 50/60 Hz for 1 minute
Between contacts of different polarity: 2,000 VAC, 50/60 Hz for 1 minute
Between contacts of same polarity: 1,500 VAC, 50/60 Hz for 1 minute
Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction: 10 to 22 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance Destruction: 300 m/s2
Malfunction: 30 m/s2
Endurance Mechanical: 5,000,000 operations min. (at 1,800 operations/hr)
Electrical: 500,000 operations min. (at 1,800 operations/hr with rated load) *5
Error rate (level P)
(Reference value) *6
10 mA at 5 VDC
Ambient temperature Operating: -10°C to 40°C (with no icing or condensation)
Ambient humidity Operating: 5% to 85%
Weight MM4P-JD: approx. 410 g
MM4XP-JD: approx. 420 g
*1. The data shown above are initial values.
*2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
*3. The operate or release time was measured with the rated voltage imposed with any contact bounce ignored at an
ambient temperature of 23°C.
*4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for
checking the dielectric strength.
*5. The electrical endurance was measured at an ambient temperature of 23°C.
*6. This value was measured at a switching frequency of 60 operations per minute.

Standard Relays

Open Relays

Solder Terminals
MM2(X), MM4(X), MM3(X)

MM Dimensions 3
Note: Connect the common (C) of MM[]X to positive (+).

Screw Terminals
MM2(X)B, MM3(X)B,MM4(X)B

MM Dimensions 4
Note: Connect the common (C) of MM[]XB to positive (+).

Mounting Holes (Bottom View)

MM Dimensions 5

Mounting Bracket (S Bracket)
R99-03 (S KANAGU) FOR MM[]

MM Dimensions 6

Cased Relays

Plug-in Terminals

MM2P(N, -D)
MM2XP(N, -D)

MM Dimensions 9
Note: As shown in the diagram, there are three 10-dia. holes in the side of the case for the MM2XP(N, -D).
When a case-protection plate is attached, the width of the Relay will be 48 mm max.

MM3P(N)

MM Dimensions 10

MM3PXP(N)
MM4P(N, -D)
MM4XP(N, -D)

MM Dimensions 11
Note 1: As shown in the diagram, there are three 10-dia. holes in the side of the case for MM[]XP(N, -D).
2: When a case-protection plate is attached, the width of the Relay will be 80 mm max.

MM4P-JD

MM Dimensions 12

MM4XP-JD

MM Dimensions 13