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    120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR120A to 2000A 100V to 1200V DC Solid State Relays SSR
Product Details

120A to 2000A 100V to 1200V DC Solid State Relays SSR

Electromagnetic coupling isolation between input and output circuits.

Control signal interface with PLC, TTL logic.

Light-emitting diode indicates operating status.

Built-in input undervoltage protection, output transient overvoltage absorption protection.

Solid non-contact output, fast switching speed, no spark and no arcing on and off.

Epoxy resin encapsulation, anti-corrosion, fire and shock resistance, stable and reliable switch work.

The product is mainly used in the new energy vehicles of high-power DC appliances non-contact switch. Such as PTC DC heater, battery charging and discharging, DC motor, solenoid valve and other switching switches.

DC Load Solid State Relays/ DC output Solid State Relays

10A to 200A, Panel mount, 100-1200VDC

120A to 2000A, Module type, 100-1200VDC

M2-D Casing

GDZ08-120100ZD3 120A 100VDC 4-32VDC M-2D
GDZ08-150100ZD3 150A 100VDC 4-32VDC M-2D
GDZ08-200100ZD3 200A 100VDC 4-32VDC M-2D
GDZ08-300100ZD3 300A 100VDC 4-32VDC M-2D
GDZ08-400100ZD3 400A 100VDC 4-32VDC M-2D
GDZ08-500100ZD3 500A 100VDC 4-32VDC M-2D
GDZ08-600100ZD3 600A 100VDC 4-32VDC M-2D
GDZ08-120200ZD3 120A 200VDC 4-32VDC M-2D
GDZ08-150200ZD3 150A 200VDC 4-32VDC M-2D
GDZ08-200200ZD3 200A 200VDC 4-32VDC M-2D
GDZ08-300200ZD3 300A 200VDC 4-32VDC M-2D
GDZ08-400200ZD3 400A 200VDC 4-32VDC M-2D
GDZ08-120600ZD3 120A 600VDC 4-32VDC M-2D
GDZ08-150600ZD3 150A 600VDC 4-32VDC M-2D
GDZ08-200600ZD3 200A 600VDC 4-32VDC M-2D
GDZ08-300600ZD3 300A 600VDC 4-32VDC M-2D
GDZ08-400600ZD3 400A 600VDC 4-32VDC M-2D
GDZ08-500600ZD3 500A 600VDC 4-32VDC M-2D
GDZ08-1201200ZD3 120A 1200VDC 4-32VDC M-2D
GDZ08-1501200ZD3 150A 1200VDC 4-32VDC M-2D
GDZ08-2001200ZD3 200A 1200VDC 4-32VDC M-2D
GDZ08-3001200ZD3 300A 1200VDC 4-32VDC M-2D
GDZ08-4001200ZD3 400A 1200VDC 4-32VDC M-2D
GDZ08-5001200ZD3 500A 1200VDC 4-32VDC M-2D

M-3/M-3D Casing

GDZ08-800100ZD3 800A 100VDC 4-32VDC M-3
GDZ08-1000100ZD3 1000A 100VDC 4-32VDC M-3
GDZ08-1200100ZD3 1200A 100VDC 4-32VDC M-3
GDZ08-1500100ZD3 1500A 100VDC 4-32VDC M-3D
GDZ08-1800100ZD3 1800A 100VDC 4-32VDC M-3D
GDZ08-2000100ZD3 2000A 100VDC 4-32VDC M-3D
GDZ08-500200ZD3 500A 200VDC 4-32VDC M-3
GDZ08-600200ZD3 600A 200VDC 4-32VDC M-3
GDZ08-600600ZD3 600A 600VDC 4-32VDC M-3
GDZ08-800600ZD3 800A 600VDC 4-32VDC M-3
GDZ08-1000600ZD3 1000A 600VDC 4-32VDC M-3
GDZ08-1200600ZD3 1200A 600VDC 4-32VDC M-3D
GDZ08-1500600ZD3 1500A 600VDC 4-32VDC M-3D
GDZ08-1800600ZD3 1800A 600VDC 4-32VDC M-3D
GDZ08-2000600ZD3 2000A 600VDC 4-32VDC M-3D
GDZ08-6001200ZD3 600A 1200VDC 4-32VDC M-3
GDZ08-8001200ZD3 800A 1200VDC 4-32VDC M-3
GDZ08-10001200ZD3 1000A 1200VDC 4-32VDC M-3

Note: Control voltage 9-72vdc , Normal Close type SSR, Over-current protection can be  custom-made to meet your demand.


Model Number

GDZ08 (500A/1000VDC, 400A/600VDC, 1000A/1200VDC, 1200A/200VDC, 2000A/200VDC etc.) 

Dc to dc solid state relays


Control power

12~15 VDC

18 to 36 VDC

Control current

30~80 mA

25 to 70 mA

Undervoltage protection

<10VDC self-locking

<16VDC self-locking

On-off time

≤1mS (120A-200A); ≤5mS (300A-2000A)

Working Instruction



Maximum output voltage





Max. load current

120, 150, 180, 200, 300 ...... 2000 A

On-state voltage drop

≤1.0 ~ 4.0 V






Overvoltage protection

Transient protection voltage are: 80V, 180V, 470V, 1000V

Switching Characteristics

MOS or IGBT-solid-state non-contact switching characteristics


Isolation voltage

≥ 1800~2500 V

Insulation voltage

≥ 2000~2500 V

Operating Temperature


Insulation resistance

≥ 100 MΩ

Heat dissipation conditions

Equipped with heat sink and fan for strong cooling

Safety factor of load current

2.5-4 times for resistive load, 3-6 times for inductive load


95×39×48; 120×52×40; 135×69×50

Note: For Overcurrent protection(GDR08LA): 50% of the marked current setting; Short circuit protection(GDR08ZA): 100% of the marked current setting.

Selection Guide:

A margin should be left when selecting the voltage and current of the product. 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. According to the relationship between load current and ambient temperature, when the ambient temperature is high or heat dissipation conditions are not good, the current capacity of the solid state relay should be increased accordingly.

In order to prevent the product from short-circuiting during use, it is necessary to connect a fast circuit breaker or a fast fuse in series with the product in the load circuit.

For inductive loads, a freewheeling diode must be connected to both ends of the load, and a varistor must be connected to the output end (the varistor (MOV) is selected according to 1~1.5 times of the power supply voltage) to prevent the high voltage generated during switching from damaging the solid-state switch.

When the product is installed, it is required that the contact surface between the heatsink and the product must be flat and clean, and a layer of thermally conductive silicone grease is applied to its surface, and then finally the screws set with flat washers andSpring washersare tightened symmetrically to fix.

Product Inquiry
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