Product Details

60-150A Solid State Relays SSR

Single phase Solid State Relay (SCR output)

Series GDH are power line relays allowing 60 to 150 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.

Features

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 ,4 to 32 Vdc or 90~280Vac.

Symbol	Meaning
G	Greegoo
D	Single phase
H	SCR output
*	60-60A, 80-80A, 100-100A, 120-120A,150-150A
*	28-280V,48-480V
*	Z-zero control, R-random control
*	D1-4-16Vdc, D3-4-32Vdc, A2-90-280Vac
For example:	GDH8048ZD3, single phase, SCR output, 80A，480Vac，4-32Vdc control

Voltage	Control volt	Rated operational current
Voltage	Control volt	60 Amp	80 Amp	100 Amp
280 VAC	4 to 16 Vdc	GDH6028ZD1B	GDH8028ZD1B	GDH10028ZD1B
"Zero Voltage"	4 to 32 Vdc	GDH6028ZD3B	GDH8028ZD3B	GDH10028ZD3B
280 VAC	4 to 16 Vdc	GDH6028RD1B	GDH8028RD1B	GDH10028RD1B
"Random Switching"	4 to 32 Vdc	GDH6028RD3B	GDH8028RD3B	GDH10028RD3B
480 VAC	4 to 16 Vdc	GDH6048ZD1B	GDH8048ZD1B	GDH10048ZD1B
"Zero Voltage"	4 to 32 Vdc	GDH6048ZD3B	GDH8048ZD3B	GDH10048ZD3B
480 VAC	4 to 16 Vdc	GDH6048RD1B	GDH8048RD1B	GDH10048RD1B
"Random Switching"	4 to 32 Vdc	GDH6048RD3B	GDH8048RD3B	GDH10048RD3B
		100 Amp	120 Amp	150 Amp
280 VAC	4 to 16 Vdc	GDH10028ZD1B	GDH12028ZD1B	GDH15028ZD1B
"Zero Voltage"	4 to 32 Vdc	GDH10028ZD3B	GDH12028ZD3B	GDH15028ZD3B
280 VAC	4 to 16 Vdc	GDH10028RD1B	GDH12028RD1B	GDH15028RD1B
"Random Switching"	4 to 32 Vdc	GDH10028RD3B	GDH12028RD3B	GDH15028RD3B
480 VAC	4 to 16 Vdc	GDH10048ZD1B	GDH12048ZD1B	GDH15048ZD1B
"Zero Voltage"	4 to 32 Vdc	GDH10048ZD3B	GDH12048ZD3B	GDH15048ZD3B
480 VAC	4 to 16 Vdc	GDH10048RD1B	GDH12048RD1B	GDH15048RD1B
"Random Switching"	4 to 32 Vdc	GDH10048RD3B	GDH12048RD3B	GDH15048RD3B

FAQ

Q:What's the benefit of a solid state relay?

SSRs have no mechanical parts, reducing the risk of arcing, making them more durable and reliable in high-frequency switching applications. Solid state relays can significantly decrease both downtime and maintenance costs.

Q:How to confirm the current and voltage of the solid state relay against inductive load and resistive load?

A margin should be left when selecting the voltage and current of the solid state relay. For resistive load: the current is selected according to 2.5~4 times the load current, and the voltage is selected according to 2~2.5 times the load power. Inductive load: current is selected according to 3-7 times load current, voltage is selected according to 2.5-3 times load voltage.

Q:What are the difference between SCR module and Solid state relay?

The main differences between a Silicon Controlled Rectifier (SCR) module and a Solid State Relay (SSR) lie in their functions and composition. An SCR can regulate current by controlling the conduction angle, while an SSR primarily acts as a switch and cannot regulate current. A Solid State Relay consists of an SCR and a synchronous trigger drive, with an integrated isolation trigger terminal, whereas an SCR requires external isolation. Although they may have similar functions in some applications, they differ significantly in regulation capability and internal structure.

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Solid state module 60A to 150A (PDF)

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