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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 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.
Model Number Structure
■ Model Number Legend
G7J -
-
-
1. Contact Form
4A:
1
2
3
3A1B: 3PST-NO/SPST-NC
2A2B: DPST-NO/DPST-NC
Ordering Information
■ List of Models
Mounting type
Contact form
PCB mounting
4PST-NO
3PST-NO/SPST-NC
DPST-NO/DPST-NC
W-bracket
4PST-NO
(see note)
3PST-NO/SPST-NC
DPST-NO/DPST-NC
Note: These Relays need a W-bracket (sold separately) for mounting.
When ordering specify the voltage.
Example: G7J-4A-P 240 VAC
2. Terminal Shape
4PST-NO
P: PCB terminals
B: Screw terminals
T: Quick-connect terminals
(#250 terminal)
PCB terminals
G7J-4A-P, G7J-4A-PZ
G7J-3A1B-P, G7J-3A1B-PZ
G7J-2A2B-P
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Rated coil voltage
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).
Screw terminals
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G7J-4A-B, G7J-4A-BZ
G7J-3A1B-B, G7J-3A1B-BZ
G7J-2A2B-B
Power Relay
Quick-connect
terminals
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G7J-4A-T, G7J-4A-TZ
G7J-3A1B-T, G7J-3A1B-TZ
G7J-2A2B-T
G7J
A-57
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Table of Contents
Related Manuals for Omron G7J
Summary of Contents for Omron G7J
- Page 1 • 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 differ- ent in polarity and between the coil and contacts.
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Page 2: Application Examples
Rated voltage (V) Model 4PST-NO 24, 50, 100 to 120, G7J-4A-B Consult your OMRON representative for details on models not men- 200 to 240 VAC tioned in this document. 12, 24, 48, 100 VDC 3PST-NO/ 24, 50, 100 to 120,... -
Page 3: Specifications
5,000 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. - Page 4 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.
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Page 5: Engineering Data
Class AC1: 25 A at 220 VAC G7J-2A2B(P) (T) 11.5 A at 380 to 480 VAC Class AC3: 11.5 A at 220 VAC and 8.5 A at 380 G7J-3A1B-B(P) (T) (Z) 6, 12, 24, 48, 100 VDC to 480 VAC... -
Page 6: Motor Load
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 3 , 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. A-62 Power Relay... - Page 7 Dimensions Note: All units are in millimeters unless otherwise indicated. Screw Terminals with W-bracket G7J-4A-B, G7J-4A-BZ, G7J-3A1B-B, G7J-3A1B-BZ, G7J-2A2B-B Ten, M3.5 Mounting Holes 34.5 max. Two, 4.5 dia. or M4 35 0.1 64 max. 55.2 43.2 51.5 max. Quick-connect Terminals with W-bracket G7J-4A-T, G7J-4A-TZ, G7J-3A1B-T, G7J-3A1B-TZ, G7J-2A2B-T 34.5 max.
- Page 8 Terminal Arrangement/Internal Connections G7J-4A-P(B) (T) (Z) G7J-3A1B-P(B) (T) (Z) G7J-2A2B-P(B) (T) 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. The coil has no polarity. Accessories (Order Separately) R99-04 W-bracket (for G5F) Two, 4.5 dia.
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Page 9: Installation
The AC coil is provided with a built-in full-wave rectifier. If a triac, Micro Loads 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 The G7J is used for switching power loads, such as motor, trans- them to actual use. - Page 10 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. Cat. No. J088-E1-03 A-66 Power Relay...