Omron G4Q DATASHEET
Ratchet Relay
G4Q
Unique Ratchet Mechanism Assures Positive
Alternate Transfer/Switching Operation
• Each contact in the double-pole contact mechanism performs
alternate make-brake operation at each pulse input and is thus
ideal for alternate operation or transfer/switching operation of a
motor.
• Positive operation is assured due to the unique ratchet mechanism.
• Satisfies dielectric strength of 2,000 VAC.
• Low power consumption.
(AC: approx. 6.4 VA; DC: approx. 3.9 W)
Ordering Information
Open Models Plug-in Models
Item DPDT
Rated voltage (V) Model
Basic model 6 VAC G4Q-211A
12 VAC
24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
6 VDC
12 VDC
24 VDC
48 VDC
100 VDC
200 VDC
Note: When ordering, add the rated coil voltage (listed in Specifications) to the model number.
Example: G4Q-211A, 24 VAC
Rated coil voltage
Basic model 6 VAC G4Q-212S
Item DPDT
Model Number Legend
G4Q-@@@@
1. Contact Form
2. Contact Type
3. Enclosure Construction
1 2 3 4
2: DPDT
1: Single
1: No casing
2: Casing
4. Terminal Shape
A: Solder
S: Plug-in
Rated voltage (V) Model
12 VAC
24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
6 VDC
12 VDC
24 VDC
48 VDC
100 VDC
200 VDC
208 Ratchet Relay G4Q
■ Accessories (Order Separately)
DIN track/Front-connecting Socket Back-connecting Socket
Screw terminal Solder terminal
8PFA1 PL08
Specifications
■ 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 6 1,233 1,067 0.54 80 % max. 10 % min. 110 % max. Approx.
12 614 531 2.24
24 307 266 8.7
50 148 128 42.7
100/
(110)
200/
(220)
74 64/73.5 160
37 32/36.8 671
13.5 VA
Approx.
6.4 VA
Item Current (mA) Resistance (
Rated voltage (V) 50 Hz 60 Hz % of rated voltage
DC 6 640 9.4 5 % min. Approx. 3.9 W
12 320 37.5
24 155 155
48 80 600
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
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23
5. The AC power consumption is measured at 60 Hz.
Ω) Must operate Must release Max. voltage Power consumption
°C.
°C and not continuously.
■ Contact Ratings
Load Resistive load
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
(cos
φ = 1)
Inductive load
(cosφ = 0.4)
(L/R = 7 ms)
Ratchet Relay G4Q 209
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