General Purpose Relay
G7J
• Ideal for 3-phase motor control applications and resistive
and inductive loads.
• No contact chattering for momentary voltage drops up to
50% of rated voltage.
• Withstands more than 4 kV between contacts that are of
different polarity and between the coil and contacts.
• Flame-resistant materials (UL94V-0) used for all insulation.
• Push-to-test button on all models lets user check contact
operation.
• Class B coil insulation available.
Ordering Information
Type
Contact form
Model
Quick-connect terminal
PCB mounting
W-bracket
(see note)
Screw terminal
PCB terminal
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-T, G7J-4A-TZ
G7J-4A-B
3PST-NO/SPST-NC
G7J-3A1B-T, G7J-3A1B-TZ G7J-3A1B-B, G7J-3A1B-BZ
DPST-NO/DPST-NC
G7J-2A2B-T
G7J-2A2B-B
Note: The G7J relays require a W-bracket for mounting. Order the bracket separately below. To order a relay and bracket packed together,
add “-W1” to the part number before the coil voltage suffix. For example, G7J-2A2B-B-W1-AC100/120.
Model Number Legend
To Order: Select the part number and add the desired coil voltage rating (e.g., G7J-3A1B-B-AC100/120).
G7J -
1
2
1. Contact Form
4A:
4PST-NO
3A1B: 3PST-NO/SPST-NC
2A2B: DPST-NO/DPST-NC
3
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).
■ Accessories
Types
W-brackets
Applicable relays
Model
G7J-4A-B, G7J-3A1B-B(Z), G7J-2A2B-B, G7J-4A-T(Z), G7J-3A1B-T, G7J-2A2B-T
R99-04-FOR-G5F
■ Typical Applications
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.
General Purpose Relay
G7J
299
Specifications
■ Contact Data
Load
Resistive load (p.f. = 1)
NO
NC
Rated load
25 A @ 220 VAC (1 A @ 220 VAC) / 25 A @ 30 VDC
8 A @ 220 VAC (1 A @ 220 VAC)/ 8 A @ 30 VDC
Rated carry current
25 A (1 A)
8 A (1 A)
Max. switching voltage
250 VAC,125 VDC
Max. switching current
25 A (1 A)
8 A (1A)
Max. switching capacity
5,500 VA, 750 W DC
1,760 VA, 240 W DC
Min. permissible load
100 mA @ 24 VDC (10 mA @ 24 VDC) at 60 operations/minute, 23°C ambient temperature (See note 2)
Note: 1. The values in parentheses indicate values for a bifurcated contact.
2. P level: λ60 =0.1 x 10-6/operations
■ Coil Data
Rated voltage
(VAC)
AC
DC
Rated
current (mA)
Coil
resistance (Ω)
24
75
—
50
36
—
100/120
18 to 21.60
—
200/240
9 to 10.80
—
12
167
72
24
83
288
48
42
1150
100
20
5000
Must operate
Must release
Max. voltage
Power
consumption
% of rated voltage
75% max.
15% min.
110% @ 23°C
10% min.
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.
■ Characteristics
Contact resistance (See note 2)
50 mΩ max.
Operating time (See note 3)
50 ms max.
Release time (See note 3)
50 ms max.
Operating frequency
Mechanical
1,800 operations/hour max.
Electrical
1,800 operations/hour max.
Insulation resistance (See note 4)
1,000 MΩ minimum at 500 VDC
Dielectric strength
4,000 VAC, 50/60 Hz for 1 minute between coil and contacts
4,000 VAC, 50/60 Hz for 1 minute between contacts of different polarity
2,000 VAC, 50/60 Hz for 1 minute between contacts of the same polarity
Impulse withstand voltage
10,000 V between coil and contact with 1.2 x 50 μs impulse wave
Vibration
10 to 55 Hz, 1.50 mm double amplitude
Mechanical durability
Malfunction durability NO: 10 to 55 Hz, 1.50 mm double amplitude
NC: 10 to 26 Hz, 1.50 mm double amplitude
Shock
Mechanical durability
1000 m/s2 (Approx. 100 G)
Malfunction durability NO: 100 m/s2 (Approx. 10 G)
NC: 20 m/s2 (Approx. 2 G)
Service life
Mechanical
1 million operations minimum at 1,800 operations/hour
Electrical
100,000 operations minimum at 1,800 operations/hour at rated load (@ 23°C
Operating
-25° to 60°C with no icing or condensation
Humidity
Operating
5% to 85% RH
Weight
PCB terminal
Approx. 140 g
Screw terminal
Approx. 165 g
Ambient temperature
Note: 1.
2.
3.
4.
300
Data shown are of initial value.
Measured with 1A @ 5 VDC using the voltage drop method.
Measured with rated voltage imposed, ignoring any contact bounce, at ambient temperature = 23°C.
Measured with a 500-VDC megger applied to the same places as those used for checking the dielectric strength.
General Purpose Relay
G7J
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)
Malfunctioning Shock
Endurance
5,000
Endurance (x103 operations)
Switching current (A)
Maximum Switching Power
G7J-2A2B
1,000
700
220 VAC (NO contact)
500
300
A2
downwards
Button upwards
220 VAC (NC contact)
70
Switching voltage (V)
Unit: m/s2
Switching current (A)
Ambient Temperature vs. Must-operate
and Must-release Voltage
G7J 100 to 120 VAC
Terminals
downwards
Shock direction
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.
Ambient Temperature vs. Coil
Temperature Rise
G7J-4A 100 to 120 VAC
Must-operate voltage
Must-release voltage
Number of Relays: 5
Coil temperature rise (°C)
Must-operate and reset voltage (%)
Energized
Not energized
50
300
Ambient temperature (°C)
Ambient temperature (°C)
G7J 24 VDC
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 (%)
Button
downwards
A1 downwards
100
Number of Relays: 5
Terminals upwards
3,000
Ambient temperature (°C)
Ambient temperature (°C)
Motor Load Performance
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.
General Purpose Relay
G7J
301
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.
302
General Purpose Relay
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
■ Approvals
Note: 1. The rated values approved by each of the safety standards may be different from the performance characteristics individually defined in this catalog.
2. In the interest of product improvement, specifications are subject to change without notice.
UL Recognized (File No. E41643) / CSA Certified (File No. LR 35535) - - Ambient Temp = 40°C
Coil ratings
24 to 265 VAC
6 to 110 VDC
Contact ratings
NO contact
25 A 277 VAC, Resistive
Number of test
operations
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
NC contact
TV-10 120 VAC
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.
General Purpose Relay
G7J
303
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 - EN60255-1-00: 1997 and EN60255-23: 1996(File No. 5381UG)
Model
Coil ratings
G7J-4A-B(P) (T)
G7J-2A2B(P) (T)
G7J-3A1B-B(P) (T)
Contact ratings
NO contact
25 A 240 VAC cosφ = 0.4
25 A 240 VAC cosφ = 1
25 A 30 VDC L/R ≥ 1
6, 12, 24, 48, 100 VDC
24, 50, 100 to 120, 200 to 240 VAC
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.
KEMA - EN60947-4-1 and IEC947-4-1 for contacts (File No. 2001291.02)
Model
G7J-4A-B(P) (T) (Z)
G7J-2A2B(P) (T)
G7J-3A1B-B(P) (T) (Z)
Coil ratings
200 to 240 VAC
6, 12, 24, 48, 100 VDC
24, 50, 100 to 120, 200 to 240 VAC
Contact ratings - NO contact
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.
Precautions
Note: Be sure to read the precautions and information common to all relays, contained in the Technical User’s Guide,
“Electromechanical Relays - Technical Information”, for correct use.
■ Correct Use
Allow suitable slack on leads when wiring, and do not subject the terminals to excessive force.
Installation
Tightening torque: 0.98 N·m
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. If a
voltage is applied to the coil, the test button will retract in an ON state
(i.e., an excited state).
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.
Operating Coil
Internal Connections of Coils
DC coil
A2
Micro Loads
AC 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.
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.
7.6
8.8
7
4.5
M3.5
304
A1
General Purpose Relay
G7J
A2
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 that prevens
contact chatter during a voltage drop. This circuit allows the relays to
withstand, with no vibration or shock, voltage drops to the coil of up
to 50% of the rated coil voltage for 1 second max.
If a triac, such as an SSR, drives the AC coil of 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.
Omron Electronic Components, LLC
Terms and Conditions of Sales
I. GENERAL
1. Definitions: The words used herein are defined as follows.
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Omron Electronic Components LLC and its subsidiaries
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not invalidate any other provision.
General Purpose Relay
G7J
Certain Precautions on Specifications and Use
1. Suitability for Use. Seller shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in
Buyer's application or use of the Product. At Buyer's request, Seller 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 but the following is a nonexhaustive list of applications for which particular attention must be given:
(i) Outdoor use, uses involving potential chemical contamination or electrical
interference, or conditions or uses not described in this document.
(ii) Energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety
equipment, and installations subject to separate industry or government
regulations.
(iii) Use in consumer products or any use in significant quantities.
(iv) Systems, machines and equipment that could present a risk to life or
property. Please know and observe all prohibitions of use applicable to this
product.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM
AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT
THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
2. Programmable Products. Seller shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
3. Performance Data. Performance data given in this publication is provided as
a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Seller's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to
Seller's Warranty and Limitations of Liability.
4. 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 Seller representative at any time to
confirm actual specifications of purchased Product.
5. Errors and Omissions. The information in this publication has been carefully
checked and is believed to be accurate; however, no responsibility is assumed
for clerical, typographical or proofreading errors, or omissions.
6. RoHS Compliance. Where indicated, our products currently comply, to the
best of our knowledge as of the date of this publication, with the requirements
of the European Union's Directive on the Restriction of certain Hazardous
Substances ("RoHS"), although the requirements of RoHS do not take effect
until July 2006. These requirements may be subject to change. Please consult
our website for current information.
Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website
at http://www.components.omron.com – under the “About Us” tab, in the Legal Matters section.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
OMRON ON-LINE
OMRON ELECTRONIC
COMPONENTS LLC
Global - http://www.omron.com
USA - http://www.components.omron.com
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
847-882-2288
Cat. No. X301-E-1A
02/10
General Purpose Relay
Specifications subject to change without notice
G7J
Printed in USA