Omron G7J-4A-P, G7J-3A1B-PZ, G7J-2A2B-P, G7J-4A-B, G7J-4A-BZ Datasheet

Power Relay G7J A-57

Electromechanical

Relays

Power Relay

G7J

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 between contacts that are differ­ent in polarity and between the coil and contacts.

• Flame-resistant materials (UL94V-0-qualifying) used for all in­sulation material.

• Standard models approved by UL and CSA.

Model Number Structure

■ Model Number Legend

Ordering Information

■ List of Models

12 3

G7J - - -

1. Contact Form

4A: 4PST-NO
3A1B: 3PST-NO/SPST-NC
2A2B: DPST-NO/DPST-NC

2. Terminal Shape

P: PCB terminals
B: Screw terminals
T: Quick-connect terminals
(#250 terminal)

3. Contact Structure

Z: Bifurcated contact
None: Single contact

Note: For bifurcated contact type,

output is 1NO (4PST-NO) or
1NC (3PST-NO/SPST-NC).

Mounting type Contact form

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
(see note)

4PST-NO --- G7J-4A-B, G7J-4A-BZ G7J-4A-T, G7J-4A-TZ
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

PCB terminals

Screw terminals

Quick-connect

terminals

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

A-58 Power Relay G7J

PCB Terminals

PCB Terminals (Bifurcated Contact)

W-bracket Screw Terminals

Screw Terminals (Bifurcated Contact)

Tab Terminals

Tab Terminals (Bifurcated Contact)

Consult your OMRON representative for details on models not men­tioned in this document.

■ Accessories (Order Separately)

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 equip­ment.

• Power controllers for packers or food processing equipment.

• Power controllers for inverters.

Contact form Rated voltage (V) Model

4PST-NO 24, 50, 100 to 120,

200 to 240 VAC

G7J-4A-P

12, 24, 48, 100 VDC

3PST-NO/
SPST-NC

24, 50, 100 to 120,
200 to 240 VAC

G7J-3A1B-P

12, 24, 48, 100 VDC

DPST-NO/DPST-NC24, 50, 100 to 120,

200 to 240 VAC

G7J-2A2B-P

12, 24, 48, 100 VDC

Contact form Rated voltage (V) Model

4PST-NO 200 to 240 VAC

24 VDC

G7J-4A-PZ

3PST-NO/
SPST-NC

12, 24 VDC G7J-3A1B-PZ

Contact form Rated voltage (V) Model

4PST-NO 24, 50, 100 to 120,

200 to 240 VAC

G7J-4A-B

12, 24, 48, 100 VDC

3PST-NO/
SPST-NC

24, 50, 100 to 120,
200 to 240 VAC

G7J-3A1B-B

12, 24, 48, 100 VDC

DPST-NO/
DPST-NC

24, 50, 100 to 120,
200 to 240 VAC

G7J-2A2B-B

12, 24, 48, 100 VDC

Contact form Rated voltage (V) Model

3PST-NO/
SPST-NC

200 to 240 VAC G7J-3A1B-BZ
6, 12, 24, 48, 100 VDC

Contact form Rated voltage (V) Model

4PST-NO 24, 50, 100 to 120,

200 to 240 VAC

G7J-4A-T

12, 24, 48, 100 VDC

3PST-NO/
SPST-NC

24, 50, 100 to 120,
200 to 240 VAC

G7J-3A1B-T

12, 24, 48, 100 VDC

DPST-NO/
DPST-NC

24, 50, 100 to 120,
200 to 240 VAC

G7J-2A2B-T

12, 24, 48, 100 VDC

Contact form Rated voltage (V) Model

4PST-NO 200 to 240 VAC G7J-4A-TZ

Name Model Applicable Relay

W-bracket R99-04 for G5F G7J-4A-B

G7J-3A1B-B
G7J-2A2B-B
G7J-4A-T
G7J-3A1B-T
G7J-2A2B-T

Power Relay G7J A-59

Electromechanical

Relays

Specifications

■ Coil Ratings

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. (The values given for AC rated current apply at 50 Hz or 60 Hz.)

2. Performance characteristic data are measured at a coil temperature of 23°C.

3. The maximum voltage is one that is applicable to the Relay coil at 23°C.

■ Contact Ratings

Note: The values in parentheses indicate values for a bifurcated contact.

■ Characteristics

Rated voltage Rated current Coil resistance Must-operate

voltage

Must-release

voltage

Max. voltage Power

consumption

AC 24 VAC 75 mA --- 75% max. of rated

voltage

15% min. of rated
voltage

110% of rated
voltage

Approx. 1.8 to

2.6 VA

50 VAC 36 mA ---
100 to 120 VAC 18 to 21.6 mA ---
200 to 240 VAC 9 to 10.8 mA ---

DC 6 VDC 333 mA 18 Ω 10% min. of rated

voltage

Approx. 2.0 W

12 VDC 167 mA 72 Ω
24 VDC 83 mA 288 Ω
48 VDC 42 mA 1,150 Ω
100 VDC 20 mA 5,000 Ω

Item Resistive load (cos φ = 1) Inductive load (cosφ = 0.4) Resistive load
Contact mechanism Double break
Contact material Ag alloy
Rated load NO: 25 A at 220 VAC (24 A at 230 VAC)

NC: 8 A at 220 VAC (7.5 A at 230 VAC)

NO: 25 A at 30 VDC
NC: 8 A at 30 VDC

Rated carry current NO: 25 A (1 A)

NC: 8 A (1 A)

Max. switching voltage 250 VAC 125 VDC
Max. switching current NO: 25 A (1 A)

NC: 8 A (1 A)

Contact resistance (see note 2) 50 mΩ max.
Operate time (see note 3) 50 ms max.
Release time (see note 3) 50 ms max.
Max. operating frequency Mechanical: 1,800 operations/hr

Electrical: 1,800 operations/hr

Insulation resistance (see note 4) 1,000 MΩ min. (at 500 VDC)
Dielectric strength 4,000 VAC, 50/60 Hz for 1 min between coil and contacts

4,000 VAC, 50/60 Hz for 1 min between contacts of different polarity
2,000 VAC, 50/60 Hz for 1 min between contacts of same polarity

Impulse withstand voltage 10,000 V between coil and contact (with 1.2 x 50 µs impulse wave)
Vibration resistance Destruction: 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude)

Malfunction: NO:10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude)

NC:10 to 26 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude)

Shock resistance

Destruction: 1,000 m/s

2

Malfunction: NO:100 m/s

2

NC:20 m/s

2

Endurance Mechanical: 1,000,000 operations min. (at 1,800 operations/hr)

Electrical: 100,000 operations min. (at 1,800 operations/hr) (see note 5)

Error rate (see note 6) 100 mA at 24 VDC (bifurcated contact: 24 VDC 10 mA)
Ambient temperature Operating: –25°C to 60°C (with no icing or condensation)
Ambient humidity Operating: 5% to 85%
Weight PCB terminal: approx. 140 g

Screw terminal: approx. 165 g
Quick-connect terminal: approx. 140 g

A-60 Power Relay G7J

Note: 1. The above values are all initial values.

2. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.

3. The operate and the release times were measured with the rated voltage imposed with any contact bounce ignored at an ambient tem-

perature 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.

■ Approved Standards

The G7J satisfies the following international standards. Approval for some international markings and symbols are still pending, however, and in­formation on them will be added when they are approved.

UL (File No. E41643)
CSA (File No. LR35535)

Note: *These ratings are bifurcated contact ratings.

Reference

UL approval: UL508 for industrial control devices

UL1950 for information processing equipment including business machines

CSA approval: CSA C22.2 No. 14 for industrial control devices

CSA C22.2 No. 950 for information processing equipment including business machines

VDE (File No. 5381UG)

Note: Add the suffix “-KM” to the model number when ordering.

*These ratings are bifurcated contact ratings.

Reference

VDE approval: EN60255-1-00: 1997

EN60255-23: 1996

Coil ratings Contact ratings Number of test

operations

24 to 265 VAC
6 to 110 VDC

NO contact 25 A 277 VAC, Resistive 30,000

25 A 120 VAC, General Use
25 A 277 VAC, General Use
25 A 240 VAC, General Use 100,000

1.5 kW 120 VAC, Tungsten 6,000

1.5 hp 120 VAC
3 hp 240/265/277 VAC
3-phase 3 hp 240/265/277 VAC 30,000
3-phase 5 hp 240/265/277 VAC
20FLA/120LRA 120 VAC
17FLA/102LRA 277 VAC
TV-10 120 VAC 25,000
25 A 30 VDC, Resistive 30,000
*1 A 277 VAC, General Use 6,000

NC contact 8 A 277 VAC, Resistive 30,000

8 A 120 VAC, General Use
8 A 277 VAC, General Use
8 A 30 VDC, Resistive
*1 A 277 VAC, General Use 6,000

Model Coil ratings Contact ratings

NO contact NC contact

G7J-4A-B(P) (T) (Z)
G7J-2A2B(P) (T)
G7J-3A1B-B(P) (T) (Z)

6, 12, 24, 48, 100 VDC
24, 50, 100 to 120, 200 to 240 VAC

25 A 240 VAC cosφ = 0.4
25 A 240 VAC cosφ = 1
25 A 30 VDC L/R ≥ 1
*1 A 240 VAC cosφ = 0.4

8 A 240 VAC cosφ = 0.4
8 A 240 VAC cosφ = 1
8 A 30 VDC L/R ≥ 1
*1 A 240 VAC cosφ = 0.4

Power Relay G7J A-61

Electromechanical

Relays

KEMA (File No. 2001291.02)

Note: Add the suffix “-KM” to the model number when ordering.

*This rating is the bifurcated contact rating.

Reference

KEMA approval: EN60947-4-1 for contacts

IEC947-4-1 for contacts

Engineering Data

Model Coil ratings Contact ratings

NO contact

G7J-4A-B(P) (T) (Z)
G7J-2A2B(P) (T)

200 to 240 VAC Class AC1: 25 A at 220 VAC

11.5 A at 380 to 480 VAC
Class AC3: 11.5 A at 220 VAC and 8.5 A at 380
to 480 VAC
*Class AC1: 1 A at 220 VAC

G7J-3A1B-B(P) (T) (Z) 6, 12, 24, 48, 100 VDC

24, 50, 100 to 120, 200 to 240 VAC

50

70

300

5,000

3,000

1,000

700

500

100

300

 Maximum Switching Power

Switching voltage (V) Switching current (A)

220 VAC (NC contact)

220 VAC (NO contact)

 Endurance

Switching current (A)

Endurance (x10

3

operations)

AC resistive load
(cosφ = 1)
AC inductive load
(cosφ = 0.4)
(NC contact)

DC resistive
load (NO
contact)

DC resistive load
(NC contact)

AC resistive load
(cosφ = 1)
AC inductive load
(cosφ = 0.4)
(NO contact)

 Malfunctioning Shock

G7J-2A2B

Terminals upwards

Button downwards

A1 downwards

Button upwards

Shock direction

Not energized

Energized

A2 downwards

Terminals
downwards

Unit: m/s

2

Number of samples: 5
Measurement conditions: Increase and decrease

the specified shock gradually imposed in ±X, ±Y,
and ±Z directions three times each with the Relay
energized and not energized to check the shock
values that cause the Relay to malfunction.

Criteria: There must not be any contact
separation for 1 ms or greater with a shock of
100 m/s

2

imposed when the coil is energized or

with a shock of 20 m/s

2

when the coil is not

energized.

A-62 Power Relay G7J

Motor Load

 Ambient Temperature vs.

Must-operate and Must­release Voltage

 Ambient Temperature vs.

Coil Temperature Rise

Number of Relays: 5

Number of Relays: 5

Must-operate voltage
Must-release voltage

Must-operate voltage
Must-release voltage

Number of Relays: 5

Number of Relays: 5

Ambient temperature (°C)

Ambient temperature (°C)

Ambient temperature (°C)

Ambient temperature (°C)

Must-operate and reset voltage (%)

Must-operate and reset voltage (%)

Coil temperature rise (°C)Coil temperature rise (°C)

G7J 100 to 120 VAC

G7J 24 VDC

G7J-4A 100 to 120 VAC

G7J-4A 24 VDC

Item G7J-4A-P, G7J-3A1B-P, G7J-4A-B, G7J-3A1B-B, G7J-4A-T, G7J-3A1B-T
Load 3φ, 220 VAC, 2.7 kW (with a inrush current of 78 A and a breaking current of 13 A)
Endurance Electrical: 100,000 operations min.

Power Relay G7J A-63

Electromechanical

Relays

Dimensions

Note: All units are in millimeters unless otherwise indicated.

35±0.1

7.6

55.2

4.3

2

43.2

Screw Terminals with W-bracket

Mounting Holes

G7J-4A-B, G7J-4A-BZ, G7J-3A1B-B, G7J-3A1B-BZ, G7J-2A2B-B

Ten, M3.5

34.5 max.

51.5 max.

64 max.

Two, 4.5 dia. or M4

Quick-connect Terminals with W-bracket

G7J-4A-T, G7J-4A-TZ, G7J-3A1B-T, G7J-3A1B-TZ, G7J-2A2B-T

34.5 max.

51.5 max.

64 max.

Two, 4.5 dia. or M4

Note: W-bracket is sold

separately.

Mounting Holes

PCB Terminals with PCB Mounting

Mounting Dimensions

G7J-4A-P, G7J-4A-PZ, G7J-3A1B-P, G7J-3A1B-PZ, G7J-2A2B-P

33.5
max.

51.5 max.

51 max.

20, 1.8

+0.1

dia.

0

A-64 Power Relay G7J

35±0.1

24

44 4.4

30

7

9

29

35

14

24

34

44

A2 A1 A2 A1 A2 A1

43

42 41 42 41

33 34 33

32 31

23 24 23 24 23

13 14 13 14 13

28

 Terminal Arrangement/Internal Connections

 Accessories (Order Separately)

R99-04 W-bracket (for G5F)

G7J-4A-P(B) (T) (Z) G7J-3A1B-P(B) (T) (Z) G7J-2A2B-P(B) (T)

The coil has no polarity.

Two, 4.5 dia.

Note: Terminals 43 and 44 of the

G7J-4A-P(B)(T)(Z) and
contacts 41 and 42 of the
G7J-3A1B-P(B)(T)(Z) are
bifurcated contacts.

Mounting Holes

Two, 4.5 dia. or M4

Power Relay G7J A-65

Electromechanical

Relays

Precautions

■ Correct Use

Installation

PCB Terminal-equipped Relays weigh approximately 140 g. Be sure
that the PCB is strong enough to support them. We recommend
dual-side through-hole PCBs to reduce solder cracking from heat
stress.

Mount the G7J with its test button facing downwards. The Relay may
malfunction due to shock if the test button faces upwards. Be careful
not to press the test button by mistake because the contacts will go
ON if the test button is pressed.

Be sure to use the test button for test purposes only.
The test button is used for Relay circuit tests, such as a circuit conti­nuity test. Do not attempt to switch the load with the test button.

Micro Loads

The G7J is used for switching power loads, such as motor, trans­former, solenoid, lamp, and heater loads. Do not use the G7J for
switching minute loads, such as signals. Use a Relay with a bifur­cated contact construction for switching micro loads, in which case,
however, only SPST-NO or SPST-NC output is obtained.

Soldering PCB Terminals

Be sure to solder the PCB terminals manually only. In the case of
automatic soldering, some flux may stick to the test button and the
G7J. As a result, the G7J may malfunction.

The G7J is not of enclosed construction. Therefore, do not wash the
G7J with water or any detergent.

Connecting

Refer to the following diagram when connecting a wire with a screw
terminal to the G7J.

Allow suitable slack on leads when wiring, and do not subject the ter­minals to excessive force.

Tightening torque: 0.98 N·m
Do not impose excessive external force on the G7J in the horizontal

or vertical directions when inserting the G7J to the Faston receptacle
or pulling the G7J out from the Faston receptacle. Do not attempt to
insert or pull out more than one G7J Unit together.

Do not solder the tab terminals.

Note: Numbers in parentheses are for air feed use.

Operating Coil

Internal Connections of Coils

If a transistor drives the G7J, check the leakage current, and connect
a bleeder resistor if necessary.

The AC coil is provided with a built-in full-wave rectifier. If a triac,
such as an SSR, drives the G7J, the G7J may not release. Be sure to
perform a trial operation with the G7J and the triac before applying
them to actual use.

Terminal Receptacle Housing

#250 terminal
(6.35 mm in
width)

AMP170333-1
(170327-1)
AMP170334-1
(170328-1)
AMP170335-1
(170329-1)

AMP172076-1: natural
AMP172076-4: yellow
AMP172076-5: green
AMP172076-6: blue

7.6

7

4.5

8.8

M3.5

A2 A1

A1A2

DC coil

AC coil

A-66 Power Relay G7J

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. J088-E1-03