GRT508A Custom 60A Latching Single-phase Relays

GRT508A Custom 60A Latching Single-phase Relays


-60A contact switching capability.
-Only impulse excitation needed, both for single and double coil.
-Low power consumption with great load capability, small in size.
-Custom assemblies available with flexible wire and/or copper straps, and/or with integrated shunt.
-4KV dielectric strength between coil and contacts
-PCB installation structure available
-RoHS compliant
-Outline dimensions: (39.1 x 30.9 x 17)mm

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GRT508A Custom 60A Latching Single-phase Relays Details

Contact Data


Contact Form 1B
Contact Material AgSnO₂
Contact Resistance Max. 1.5mΩ (1A 6VDC)
Rated Load(Resistive) 60A 250VAC
Max. Switching Voltage 250VAC
Max. Switching Current 60A
Max. Switching Power 15000VA
Service Life Mechnical Endurance 5x105 OPS
Electrical Endurance 1x10OPS
Max. Short-circuit Current 1500A/10ms





Operate Time 20ms Max.
Release Time 20ms Max.
Insulation Resistance (500VDC) 500MΩ Min.
Dielectric Strength (50/60hz,1 min) Contact to Coil 4000VAC
Across Open Contacts 1500VAC
Contact to contact /
Surge Voltage (1 .2/50 μ s) Contact to Coil /
Creepage Distance /
Unit Weight About 36g



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 36 18/18 1.0 2.0 ≤4.2 ≤4.2 9 ≥50
□9 81 40.5/40.5 ≤6.3 ≤6.3 13.5
□12 144 72/72 ≤8.4 ≤8.4 18
□24 576 288/288 ≤16.8 ≤16.8 36


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