SRS1 Series - Single-Phase Solid State Relays (Socket Type)
SRS1 Series Single-Phase Solid State Relays (Socket Type)

The SRS1 series socket type single phase solid state relays offer easy installation and maintenance. The high dielectric strength of 2500 VAC and diverse power options provide durable and reliable performance in various applications, including heater loads, semiconductor equipment, and motor control.
Main features
- Socket type for easier installation and maintenance
- - SRS1-A : Autonics SK-G05 sockets (AC, DC, AC/DC)
- - SRS1-B : Universal LY2 sockets (AC)
- - SRS1-C : Universal MY4 sockets (AC, DC, AC/DC)
- Rated input voltage
- - SRS1-A : 4-24VDC
- - SRS1-B : 4-30VDC
- - SRS1-C : 4-24VDC, 4-30VDC
- Rated load voltage
- - SRS1-A : 24-240VAC, 5-100VDC, 5-200VDC, 5-240VAC/5-200VDC (AC/DC type)
- - SRS1-B : 90-240VAC
- - SRS1-C : 90-240VAC, 5-100VDC, 5-240VAC/5-200VDC (AC/DC type)
- Rated load current (resistive load) : 1A, 2A, 3A, 5A
- Dielectric strength : 2500VAC
- Zero cross turn-on, random turn-on models available
- Input indicator (red LED)
Input Indicator
Dielectric Strength
2,500VAC Dielectric Strength
The dielectric strength of 2,500VAC provides durable and stable performance.
Various Types Available
Various models are available depending on load voltage or socket types, offering users wider options for various applications.
SRS1-A
AC, DC, AC/DC Control (Autonics SK-G05 sockets)
SRS1-B
AC Control (Universal LY2 sockets)
SRS1-C
AC, DC, AC/DC Control (Universal MY4 sockets)
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 control of power.
Check Operation Status
Easily check the operation status of the unit with the input indicator (red LED).
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