Three-phase relay-GRT508D-100A


-100A three sets of contacts switching simultaneously, auxiliary contact can be added
-Only impulse excitation needed, both for single and double coil.
-Safe and reliable, long life time
-4KV dielectric strength between coil and contacts
-RoHS compliant
-Outline dimensions: (110x68x32)mm
-Patent number: 200420078624.7

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Three-phase relay-GRT508D-100A Details

Contact Data

Contact Form 3B
Contact Material AgSnO₂
Contact Resistance Max. 1.0mΩ (1A 6VDC)
Rated Load(Resistive) 100A 250VAC  ‖ 120A 250VAC
Max. Switching Voltage 380VAC
Max. Switching Current 100A                ‖ 120A
Max. Switching Power 25000VA         ‖ 30000VA
Service Life Mechnical Endurance 1x105 OPS
Electrical Endurance 6x10OPS
Max. Short-circuit Current 2500A/10ms




Operate Time 60ms Max.
Release Time 60ms Max.
Insulation Resistance (500VDC) 1000MΩ Min.
Dielectric Strength (50/60hz,1 min) Contact to Coil 4000VAC
Across Open Contacts 2000VAC
Contact to contact 4000VAC
Surge Voltage (1 .2/50 μ s) Contact to Coil 12KVAC
Creepage Distance 8mm
Unit Weight About 440g


Environmental Data


Ambient Temperature -40℃一+70℃ Relative Humidity 5%-85% RH
Vibration 10-55Hz 1.5mm Shock 98m/s²


Coil Data (20℃)


Coil Voltage (VDC) Coil Resistance (Ω)±10% Coil Power (W) Operating Voltage (VDC) Releasing Voltage (VDC) Allowing Voltage (VDC) Pulse Duration (ms)
Single Double Single Double
□6 14.4 7.2/7.2 2.5 5.0 ≤4.2 ≤4.2 13.5 ≥180
□9 32.4 16.2/16.2 ≤6.3 ≤6.3 18
□12 57.6 28.8/28.8 ≤8.4 ≤8.4 36
□24 230.4 115.2/115.2 ≤16.8 ≤16.8 72

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