You are here: Home > Products > Solid State Relays

Product Details

40-120A single phase solid state relayPDF

Single phase Solid State Relay (SCR output)

Series GDH are power line relays allowing 40 to 120 Amps. switching power,with Voltage ratings from 280 to 480 Volts A.C. GDH series is Dual SCR Power Hybrid technology provides highly efficient thermal management for greatly increased cyclic life.


High performance/low cost circuit design.
Logic compatible current regulated input.
2500 Vrms optical isolation.
Both “Zero Voltage” & phase controllable “Random Switching” versions.
High voltage (1200 Vpk) versions for 480 Vrms service.
LED-indication for control input.
Control voltage range:4~16 Vdc ,3 to 32 Vdc or 90~250Vac.

Symbol Meaning
G Greegoo
D Single phase
H SCR output
* 40-40A, 60-60A, 80-80A, 100-100A, 120-120A
* 28-280V,48-480V
* Z-zero control, R-random control
* D1-4-16Vdc, D3-4-32Vdc, A2-90-250Vac
For example: GDH4048ZD3, single phase, SCR output, 40A,480Vac,4-32Vdc control

Rated voltage Control voltage Rated operational current
40 Amp 60 Amp 80 Amp
280 VAC 4 to 16 Vdc GDH4028ZD1 GDH6028ZD1 GDH8028ZD1
"Zero 4 to 32 Vdc GDH4028ZD3 GDH6028ZD3 GDH8028ZD3
Voltage" 90 to 250Vac GDH4028ZA2 GDH6028ZA2 GDH8028ZA2
280 VAC 4 to 16 Vdc GDH4028RD1 GDH6028RD1 GDH8028RD1
"Random 3 to 32 Vdc GDH4028RD3 GDH6028RD3 GDH8028RD3
Switching" 90 to 250Vac GDH4028RA2 GDH6028RA2 GDH8028RA2
480 VAC 4 to 16 Vdc GDH4048ZD1 GDH6048ZD1 GDH8048ZD1
"Zero 3 to 32 Vdc GDH4048ZD3 GDH6048ZD3 GDH8048ZD3
Voltage" 90 to 250Vac GDH4048ZA2 GDH6048RA2 GDH8048RA2
480 VAC 4 to 16 Vdc GDH4048RD1 GDH6048RD1 GDH8048RD1
"Random 3 to 32 Vdc GDH4048RD3 GDH6048RD3 GDH8048RD3
Switching" 90 to 250Vac GDH4048RA2 GDH6048RA2 GDH8048RA2
80 Amp 100 Amp 120 Amp
280 VAC 4 to 16 Vdc GDH8028ZD1 GDH10028ZD1 GDH12028ZD1
"Zero 4 to 32 Vdc GDH8028ZD3 GDH10028ZD3 GDH12028ZD3
Voltage" 90 to 250Vac GDH8028ZA2 GDH10028ZA2 GDH12028ZA2
280 VAC 4 to 16 Vdc GDH8028RD1 GDH10028RD1 GDH12028RD1
"Random 4 to 32 Vdc GDH8028RD3 GDH10028RD3 GDH12028RD3
Switching" 90 to 250Vac GDH8028RA2 GDH10028RA2 GDH12028RA2
480 VAC 4 to 16 Vdc GDH8048ZD1 GDH10048ZD1 GDH12048ZD1
"Zero 4 to 32 Vdc GDH8048ZD3 GDH10048ZD3 GDH12048ZD3
Voltage" 90 to 250Vac GDH8048RA2 GDH10048ZA2 GDH12048ZA2
480 VAC 4 to 16 Vdc GDH8048RD1 GDH10048RD1 GDH12048RD1
"Random 4 to 32 Vdc GDH8048RD3 GDH10048RD3 GDH12048RD3
Switching" 90 to 250Vac GDH8048RA2 GDH10048RA2 GDH12048RA2

Product Inquiry
If you would like a quotation or further information about this product, please fill in the form below and we will reply to you soon.