SR1 Series - Single-Phase Solid State Relays (Detachable Heatsink Type)

SR1 Series Single-Phase Solid State Relays (Detachable Heatsink Type)

The SR1 series single phase solid state relays feature compact, universal designs for flexible installation and detachable heatsinks for easier maintenance or replacement. The solid state relays provide durable and stable control, for optimal performance in various applications including heater loads, semiconductor equipment, and motor control.

ceramic PCB compact size input indicator random turn on Single phase solid state relay SSR zero cross turn on

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Main features

Compact, universal design for flexible installation
High heat dissipation efficiency with ceramic PCB
Zero cross turn-on, random turn-on models available
Input indicator (green LED)

※ The SR1 series has been updated (SR1-ㅁㅁㅁㅁ-N). Please check specification details before use.

Efficient Heat Dissipation
Input Indicator

High Heat Dissipation Efficiency with Ceramic PCB

Ceramic PCBs offer better electrical isolation and thermal conductivity compared to metal core PCBs, offering better heat dissipation efficiency.

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Zero Cross Turn-On/Random Turn-On Models Available

Zero Cross Turn-On

The relay switches ON/OFF when the voltage reaches the zero-crossing point of the sine wave. This method minimizes surge current and inrush current, and is ideal for most common industrial loads.
Random Turn-On

The relay opens or turns on immediately when the input signal is applied and turns off when the signal is removed. This method allows phase-control applications requiring precise power control.