1
Miniature Power Relay
G4A
Miniature Power Relay
G4A
High switching capacity from normally open contact loop
terminal construction.
Miniature power relay ideal for motor switching in appliances
and HVAC equipment.
Designed specifically for high inrush compressor loads.
Space-saving design.
Semi-sealed construction, standard.
Standard versions approved by UL, CSA, and VDE.
Ordering Information
To Order: Select the part number and add the desired coil voltage rating, (e.g., G4A-1A-E-DC12).
Specifications
Contact Data
Coil Data
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23C (73F) with a tolerance of 10% for DC coil resistance.
2. Operating characteristics are measured at a coil temperature of 23C (73F).
Type
Contact form
Construction
Model
PCB and quick-connect
PCB termInal
Standard
SPST-NO
Semi-sealed
G4A-1A-E
G4A-1A-P-E
Load
Motor load
Rated load
Inrush 80 A (cos 0.7) 0.35/20 A steady state (cos 0.9)
Contact material
AgSnO
2
Max. carry current
20 A
Max. operating voltage
250 VAC
Max. operating current
20 A
Max. switching capacity
5,000 VA
Min. permissible load
100 mA at 5 VDC
Rated
voltage
(VDC)
Rated
current
(mA)
Coil
resistance
(
)
Pick-up
voltage
Dropout
voltage
Maximum
voltage
Power
consumption
(W)
% of rated voltage
12
75
160
70% max.
10% min.
110%
Approx. 0.90
24
37.50
640
Miniature Power Relay
G4A
2
Characteristics
Note: Data shown are of initial value.
Characteristic Data
G4A-1A
Contact resistance
100 m
Operate time
20 ms max.
Release time
10 ms max.
Maximum operating
frequency
Mechanical
18,000 operations/hour
Electrical
1,200 operations/hour (under rated load)
Insulation resistance
1,000 M
min (at 500 VDC)
Dielectric strength
4,500 VAC, 50/60 Hz for 1 minute between coil and contacts
1,000 VAC, 50/60 Hz for 1 minute between contacts of same polarity
Vibration
Mechanical durability
10 to 55 Hz, 1.50 mm (0.06 in) double amplitude range for 2 hours
Malfunction durability
10 to 55 Hz, 1.50 mm (0.06 in) double amplitude range for 5 minutes
Shock
Mechanical durability
1,000 m/s
2
(approx. 100 G)
Malfunction durability
200 m/s
2
(approx. 20 G)
Life expectancy
Mechanical
2 million operations min. (at 18,000 operations/hour)
Electrical
200,000 operations min. (at 1,200 operations/hour under rated)
Ambient operating temperature
-25 to 60C (-13 to 140F) with no icing
Ambient operating humidity
35% to 85%
Weight
23 g (0.81 oz)
Maximum switching capacity
Electrical service life
Miniature Power Relay
G4A
4
Approvals
UL (File No. E41643)/CSA (File No. LR31928)
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.
Type
Contact form
Coil ratings
Contact ratings
G4A-1A-E
SPST-NO
5 to 100 VDC
Motor load
80 A, 250 VAC (make)
G4A-1A-P-E
20 A, 250 VAC (break), 100,000 cycles
Horsepower
1 HP, 120 VAC, 125 VAC, 240 VAC, 250 VAC, 277 VAC
2 HP, 240 VAC, 277 VAC, 30,000 cycles
FLA/LRA
16 FLA, 96 LRA, 120 VAC, 30,000 cycles
12 FLA, 72 LRA, 150 VAC, 30,000 cycles
12 FLA, 72 LRA, 240 VAC, 30,000 cycles
General purpose
23 A, 277 VAC, 30,000 cycles
Resistive
15 A, 30 VDC
20 A, 250 VAC, 100,000 cycles
Definite purpose
18 FLA, 90.5 LRA, 240 VAC,
100,000 cycles, 55C (131F) ambient
Tungsten
20 A, 120 VAC, 6,000 cycles; TV-15, 120 VAC
Ballast
20 A, 277 VAC, 6,000 cycles
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, divide by 25.4
OMRON ON-LINE
Global - http://www.omron.com
USA - http://www.omron.com/oei
Canada - http://www.omron.ca
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, divide by 25.4
Cat. No. GC RLY8
5/03 Specifications subject to change without notice Printed in USA
OMRON CANADA, INC.
885 Milner Avenue
Toronto, Ontario M1B 5V8
416-286-6465
OMRON ELECTRONICS LLC
One Commerce Drive
Schaumburg, IL 60173
847-882-2288
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