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Omron relays. General Purpose Relays. G4Q

Ratchet Relay
G4Q

Unique Ratchet Mechanism Assures Positive Alternate Transfer/Switching Operation

Open Models

Item DPDT
Model Rated voltage
Basic model G4Q-211A 24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
12 VDC
24 VDC
100 VDC

Plug-in Models

Item DPDT
Model Rated voltage
Basic model G4Q-212S 12 VAC
24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
12 VDC
24 VDC
100 VDC
200 VDC
Note: When ordering, add the rated coil voltage (listed in Specifications) to the model number.
G4Q Lineup 4

Accessories (Order Separately)

DIN track/Front-connecting Socket Back-connecting Socket
Screw terminal Solder terminal
8PFA1 PL08

Coil Ratings

Item Current (mA) Resistance
(Ω)
Must operate Must release Max. voltage Power consumption
Rated
voltage (V)
50 Hz 60 Hz % of rated voltage Initial Rated
AC 12 614 531 2.24 80 % max. 10 % min. 110 % max. Approx.
13.5 VA
Approx.
6.4 VA
24 307 266 8.7
50 148 128 42.7
100/
(110)
74 64/73.5 160
200/
(220)
37 32/36.8 671
Item Current (mA) Resistance
(Ω)
Must operate Must release Max. voltage Power consumption
Rated
voltage (V)
50 Hz 60 Hz % of rated voltage
DC 12 320 37.5 5 % min. Approx. 3.9 W
24 155 155
100 39 2,580
200 19.2 10,400
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 for reference only.
3. Performance characteristic data is 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 AC power consumption is measured at 60 Hz.

Contact Ratings

Load Resistive load
(cosΦ = 1)
Inductive load
(cosΦ = 0.4)
(L/R = 7 ms)
Contact mechanism Single
Contact material Silver alloy
Rated load 5 A at 220 VAC, 5 A at 24 VDC 3 A at 220 VAC, 4 A at 24 VDC
Rated carry current 5 A
Max. switching voltage 250 VAC, 250 VDC
Max. switching current 5 A

Characteristics

Contact resistance
(See note 2.)
50 mΩ max.
Operate time
(See note 3.)
60 ms max.
Max. operating frequency Mechanical: 1,200 operations/hr
Electrical: 1,200 operations/hr (under rated load)
Insulation resistance
(See note 4.)
100 MΩ min. (at 500 VDC)
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between coil and contact (1,000 VAC, 50/60 Hz for 1 min between contacts of same polarity) (2,000 VAC between contacts of different polarities)
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: 500 m/s2
Malfunction: 100 m/s2
Endurance Mechanical: 5,000,000 operations min. (at operating frequency of 1,200 operations/hr)
Electrical: 500,000 operations min. (under rated load and at operating frequency of 1,200 operations/hr) (See note 5.)
Error rate
(See note 6.)
1 A at 5 VDC (0.1 A at 5 VDC)
Ambient temperature Operating: -10°C to 55°C (with no icing or no condensation)
Ambient humidity Operating: 5% to 85%
Weight Open model: Approx. 240 g; cased model: Approx. 340 g
Note: 1. The data shown above are initial values.
2. The contact resistance was measured with 0.1 A at 5 VDC using the voltage drop method.
3. The operate 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. The value in parentheses is for
the cased model.
Open Model
G4Q-211A

G4Q Dimensions 1
Plug-in Terminal Model
G4Q-212S

G4Q Dimensions 2
Relay Mounting Height with Socket
G4Q Dimensions 3