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Power Relay
G7J
CSM_G7J_DS_E_6_2
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.
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
G7J -
1
2
3
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).
Ordering Information
When your order, specify the rated voltage.
■ List of Models
Mounting type
PCB mounting
W-bracket
(see note)
Contact form
PCB terminals
Screw terminals
Quick-connect
terminals
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
---
---
4PST-NO
---
G7J-4A-B
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
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
1
G7J
PCB Terminals
Contact form
4PST-NO
Screw Terminals (Bifurcated Contact)
Model
G7J-4A-P
Rated voltage
24, 50, 100/120,
200/240 VAC
Contact form
3PST-NO/
SPST-NC
Model
G7J-3A1B-BZ
Rated voltage
200/240 VAC
12, 24 VDC
12, 24, 48, 100 VDC
3PST-NO/
SPST-NC
G7J-3A1B-P
24, 50, 100/120,
200/240 VAC
DPST-NO/DPSTNC
G7J-2A2B-P
24, 50, 100/120,
200/240 VAC
12, 24, 48, 100 VDC
W-bracket Tab Terminals
Contact form
Model
G7J-4A-T
24, 50, 100/120,
200/240 VAC
3PST-NO/
SPST-NC
G7J-3A1B-T
24, 50, 100/120,
200/240 VAC
DPST-NO/
DPST-NC
G7J-2A2B-T
24, 50, 100/120,
200/240 VAC
12, 24, 48, 100 VDC
PCB Terminals (Bifurcated Contact)
Rated voltage
4PST-NO
12, 24, 48, 100 VDC
12, 24, 48, 100 VDC
Contact form
Model
Rated voltage
4PST-NO
G7J-4A-PZ
200/240 VAC
3PST-NO/
SPST-NC
G7J-3A1B-PZ
200/240 VAC
24 VDC
12, 24, 48, 100 VDC
12, 24 VDC
W-bracket Screw Terminals
W-bracket Tab Terminals
(Bifurcated Contact)
Contact form
Contact form
4PST-NO
Model
G7J-4A-B
Rated voltage
24, 50, 100/120,
200/240 VAC
12, 24, 48, 100 VDC
3PST-NO/
SPST-NC
G7J-3A1B-B
24, 50, 100/120,
200/240 VAC
DPST-NO/
DPST-NC
G7J-2A2B-B
24, 50, 100/120,
200/240 VAC
4PST-NO
Model
G7J-4A-TZ
Rated voltage
200/240 VAC
Consult your OMRON representative for details on models not mentioned in this document.
12, 24, 48, 100 VDC
12, 24, 48, 100 VDC
■ Accessories (Order Separately)
Name
W-bracket
Model
R99-04 for G5F
Applicable Relay
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 controllers in copy machines, facsimile machines, and other office equipment.
• Power controllers for packers or food processing equipment.
• Power controllers for inverters.
2
G7J
Specifications
■ Coil Ratings
Rated voltage
AC
DC
Rated current
Coil resistance
24 VAC
75 mA
---
50 VAC
36 mA
---
100 to 120 VAC
18 to 21.6 mA
---
200 to 240 VDC
9 to 10.8 mA
---
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
Must-operate
voltage
Must-release
voltage
Max. voltage
75% max. of rated 15% min. of rated 110% of rated
voltage
voltage
voltage
10% min. of rated
voltage
Power
consumption
Approx. 1.8 to
2.6 VA
Approx. 2.0 W
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
Item
Resistive load (cos φ = 1)
Inductive load (cosφ = 0.4)
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)
Rated carry current
NO: 25 A (1 A)
NC: 8 A (1 A)
Max. switching voltage
250 VAC
Max. switching current
NO: 25 A (1 A)
NC: 8 A (1 A)
Resistive load
NO: 25 A at 30 VDC
NC: 8 A at 30 VDC
125 VDC
Note: The values in parentheses indicate values for a bifurcated contact.
■ Characteristics
Contact resistance (see note 2)
100 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/s2
Malfunction: NO:100 m/s2
NC:20 m/s2
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
3
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 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.
■ 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)
Coil ratings
24 to 265 VAC
6 to 110 VDC
Contact ratings
NO contact
Number of test
operations
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
1,000
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
NC contact
25,000
25 A 30 VDC, Resistive
30,000
*1 A 277 VAC, General Use
6,000
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
Note: *These ratings are bifurcated contact ratings.
Reference
UL approval:
UL508 for industrial control devices
CSA approval: CSA C22.2 No. 14 for industrial control devices
VDE (File No. 5381UG)
Model
Coil ratings
Contact ratings
NO contact
G7J-4A-B(P) (T)
G7J-2A2B(P) (T)
G7J-3A1B-B(P) (T)
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
NC contact
8 A 240 VAC cosφ = 0.4
8 A 240 VAC cosφ = 1
8 A 30 VDC L/R ≥ 1
Note: Add the suffix “-KM” to the model number when ordering.
Reference
VDE approval: EN60255-1-00: 1997
EN60255-23: 1996
4
G7J
KEMA (File No. 2001291.02)
Model
Coil ratings
Contact ratings
NO contact
G7J-4A-B(P) (T) (Z)
G7J-2A2B(P) (T)
200 to 240 VAC
G7J-3A1B-B(P) (T) (Z)
6, 12, 24, 48, 100 VDC
24, 50, 100 to 120, 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
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
Engineering Data
AC resistive load
(cosφ = 1)
AC inductive load
(cosφ = 0.4)
(NO contact)
AC resistive load
(cosφ = 1)
AC inductive load
(cosφ = 0.4)
(NC contact)
DC resistive
load (NO
contact)
DC resistive load
(NC contact)
Endurance
5,000
Endurance (x103 operations)
Switching current (A)
Maximum Switching Power
3,000
1,000
700
220 VAC (NO contact)
500
300
100
220 VAC (NC contact)
70
300
Switching voltage (V)
50
Switching current (A)
Malfunctioning Shock
G7J-2A2B
Terminals upwards
Button downwards
A1 downwards
A2 downwards
Button upwards
Unit: m/s2
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/s2 imposed when the coil is energized or
with a shock of 20 m/s2 when the coil is not
energized.
Energized
Not energized
Terminals
downwards
Shock direction
5
G7J
Ambient Temperature vs.
Coil Temperature Rise
G7J 100 to 120 VAC
G7J-4A 100 to 120 VAC
Number of Relays: 5
Must-operate voltage
Must-release voltage
Number of Relays: 5
Coil temperature rise (°C)
Must-operate and reset voltage (%)
Ambient Temperature vs.
Must-operate and
Must-release Voltage
Ambient temperature (°C)
Ambient temperature (°C)
G7J-4A 24 VDC
Number of Relays: 5
Must-operate voltage
Must-release voltage
Number of Relays: 5
Coil temperature rise (°C)
Must-operate and reset voltage (%)
G7J 24 VDC
Ambient temperature (°C)
Ambient temperature (°C)
Motor Load
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.
6
G7J
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Screw Terminals with W-bracket
G7J-4A-B, G7J-3A1B-B, G7J-3A1B-BZ, G7J-2A2B-B
Ten, M3.5
Mounting Holes
34.5 max.
Two, 4.5 dia. or M4
7.6
4.3
35±0.1
64 max.
55.2
43.2
51.5 max.
2
Quick-connect Terminals with W-bracket
G7J-4A-T, G7J-4A-TZ, G7J-3A1B-T, G7J-2A2B-T
34.5 max.
Mounting Holes
Two, 4.5 dia. or M4
64 max.
Note: W-bracket is sold
separately.
51.5 max.
PCB Terminals with PCB Mounting
G7J-4A-P, G7J-4A-PZ, G7J-3A1B-P, G7J-3A1B-PZ, G7J-2A2B-P
Mounting Dimensions
33.5
max.
20, 1.8+0.1
0 dia.
51 max.
51.5 max.
7
G7J
Terminal Arrangement/Internal Connections
G7J-4A-P
G7J-4A-B
G7J-4A-T
G7J-3A1B-P
G7J-3A1B-B
G7J-3A1B-T
G7J-2A2B-P
G7J-2A2B-B
G7J-2A2B-T
14
13
14
13
14
13
24
23
24
23
24
23
34
33
34
33
32
31
44
43
42
41
42
41
A2
A1
A2
A1
A2
A1
Note: Terminals 43 and 44 of the
G7J-4A-P(T) and contacts
41 and 42 of the
G7J-3A1B-P(B) are
bifurcated contacts.
The coil has no polarity.
Accessories (Order Separately)
R99-04 W-bracket (for G5F)
35
Two, 4.5 dia.
Mounting Holes
24
Two, 4.5 dia. or M4
28
30
9
29
35±0.1
7
44
4.4
8
G7J
Safety Precautions
Refer to Safety Precautions for All Relays.
■ Correct Use
Installation
Faston Tabs
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.
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.
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.
If the normal mounting direction is not used, carbides or powder from
contact abrasion that results from load switching will accumulate
inside the Relay. If the Relay is used past its endurance in this state,
insulation failure between circuits of different polarity or Relay burning may occur.
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.
Do not solder the tab terminals.
Terminal
#250 terminal
(6.35 mm in
width)
Receptacle
AMP170333-1
(170327-1)
AMP170334-1
(170328-1)
AMP170335-1
(170329-1)
Housing
AMP172076-1: natural
AMP172076-4: yellow
AMP172076-5: green
AMP172076-6: blue
Note: Numbers in parentheses are for air feed use.
If a voltage is applied to the coil, the test button will retract in an ON
state (i.e., an excited state).
Operating Coil
Micro Loads
Internal Connections of Coils
DC coil
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.
A2
Soldering PCB Terminals
A2
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
A1
AC coil
A1
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. Use the
Power MOS FET Relay in this case.
Refer to the following diagram when connecting a wire with a screw
terminal to the G7J.
7.6
8.8
7
4.5
M3.5
Allow suitable slack on leads when wiring, and do not subject the terminals to excessive force.
Tighter the terminal screws with torque 0.78 to 1.18 N·m. Loose
screws result in disconnection of lead wire, malfunction or fire.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
9
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.10
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.
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