Power Relay
G7J
CSM_G7J_DS_E_5_3
A High-capacity, High-dielectric-strength,
Multi-pole Relay Used Like a Contactor
Miniature hinge for maximum switching power for motor loads
as well as resistive and inductive loads.
No contact chattering for momentary voltage drops up to 50%
of rated voltage.
Withstanding more than 4 kV bet ween contacts that are differ-
ent in polarity and between the coil and contacts.
Flame-resistant materials (UL94V-0-qualifying) used for all in-
sulation material.
Standard models approved by UL and CSA.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Refer to Safety Precautions for All Relays.
Model Number Structure
Model Number Legend
1. Contact Form 2. Terminal Shape 3. Contact Structure
G7J - - -
4A: 4PST-NO P: PCB terminals Z: Bifurcated contact
12 3
3A1B: 3PST-NO/SPST-NC B: Screw terminals None: Single contact
T: Quick-connect terminals
2A2B: DPST-NO/DPST-NC
(#250 terminal) Note: For bifurcated contact type,
output is 1NO (4PST-NO) or
1NC (3PST-NO/SPST-NC).
Ordering Information
List of Models
Mounting type Contact form
PCB terminals
Screw terminals
Quick-connect
terminals
PCB mounting 4PST-NO G7J-4A-P, G7J-4A-PZ --- ---
3PST-NO/SPST-NC G7J-3A1B-P, G7J-3A1B-PZ --- ---
DPST-NO/DPST-NC G7J-2A2B-P --- ---
W-bracket 4PST-NO --- G7J-4A-B G7J-4A-T, G7J-4A-TZ
(see note)
3PST-NO/SPST-NC --- G7J-3A1B-B, G7J-3A1B-BZ G7J-3A1B-T, G7J-3A1B-TZ
DPST-NO/DPST-NC --- G7J-2A2B-B G7J-2A2B-T
Note: These Relays need a W-bracket (sold separately) for mounting.
When ordering specify the voltage.
Example: G7J-4A-P 240 VAC
Rated coil voltage
1G7J
PCB Terminals Screw Terminals (Bifurcated Contact)
Contact form Model Rated voltage Contact form Model Rated voltage
4PST-NO G7J-4A-P 24, 50, 100/120, 3PST-NO/ G7J-3A1B-BZ 200/240 VAC
200/240 VAC SPST-NC
12, 24 VDC
12, 24, 48, 100 VDC
3PST-NO/ G7J-3A1B-P 24, 50, 100/120,
W-bracket Tab Terminals
SPST-NC 200/240 VAC
12, 24, 48, 100 VDC
Contact form Model Rated voltage
DPST-NO/DPST- G7J-2A2B-P 24, 50, 100/120,
4PST-NO G7J-4A-T 24, 50, 100/120,
NC 200/240 VAC
200/240 VAC
12, 24, 48, 100 VDC
12, 24, 48, 100 VDC
3PST-NO/ G7J-3A1B-T 24, 50, 100/120,
SPST-NC 200/240 VAC
PCB Terminals (Bifurcated Contact)
12, 24, 48, 100 VDC
Contact form Model Rated voltage
DPST-NO/ G7J-2A2B-T 24, 50, 100/120,
4PST-NO G7J-4A-PZ 200/240 VAC DPST-NC 200/240 VAC
24 VDC 12, 24, 48, 100 VDC
3PST-NO/ G7J-3A1B-PZ 200/240 VAC
SPST-NC
12, 24 VDC
W-bracket Tab Terminals
(Bifurcated Contact)
W-bracket Screw Terminals
Contact form Model Rated voltage
Contact form Model Rated voltage
4PST-NO G7J-4A-TZ 200/240 VAC
4PST-NO G7J-4A-B 24, 50, 100/120,
200/240 VAC
Consult your OMRON representative for details on models not men-
tioned in this document.
12, 24, 48, 100 VDC
3PST-NO/ G7J-3A1B-B 24, 50, 100/120,
SPST-NC 200/240 VAC
12, 24, 48, 100 VDC
DPST-NO/ G7J-2A2B-B 24, 50, 100/120,
DPST-NC 200/240 VAC
12, 24, 48, 100 VDC
Accessories (Order Separately)
Name Model Applicable Relay
W-bracket R99-04 for G5F G7J-4A-B
G7J-3A1B-B(Z)
G7J-2A2B-B
G7J-4A-T(Z)
G7J-3A1B-T
G7J-2A2B-T
Application Examples
Compressors for air conditioners and heater switching controllers.
Switching controllers for power tools or motors.
Lamp controls, motor drivers, and power supply switching control-
lers in copy machines, facsimile machines, and other office equip-
ment.
Power controllers for packers or food processing equipment.
Power controllers for inverters.
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