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Product Details

10-200A DC to DC 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.



Parameter Model Number GDR02
Input Control power 3 32 VDC 12 15 VDC 18 36 VDC
Control current 8 20 mA 30 80 mA 25 70 mA
Undervoltage protection no 10VDC self-locking 16VDC self-locking
On-off time 8mS 1mS 1mS
Working Instruction LED
Output Maximum output voltage 100VDC 200VDC 600VDC 1200VDC
Max. load current 10, 20, 30, 60, 80, 100 ...... 200 A
On-state voltage drop 0.5 ~ 4.6 V
Off-statevoltage ≥100V ≥200V ≥600V ≥1200V
Overvoltage protection Transient protection voltage are: 80V, 180V, 470V, 1000V
Switching Characteristics MOS or IGBT-solid-state non-contact switching characteristics
Performance Isolation voltage ≥ 1800~2500 V
Insulation voltage ≥ 2000~2500 V
Operating Temperature -25~75℃
Insulation resistance ≥ 100 MΩ
Heat dissipation conditions More than 20A, equipped with heatsink only; more than 80A, equipped with heat sink and fan for strong cooling
Safety factor of load current 2.5-3 times for resistive load, 3-6 times for inductive load
Dimension 59×45×24 mm


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.

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