Autonics SRHL1-4420 - Single-Phase Solid State Relays (Integrated Heatsink, Left/Right Terminal Type)

• Single-Phase Solid State Relays
• Input/Output Terminal: Left-Right Terminal
• Control Phase: Single-phase
• Rated input voltage: 90-240VAC
• Rated load voltage: 48-480VAC
• Rated input current (resistive load): 20A
• Function: Zero cross turn-on
• Alarm(Overheat Prevention): Alarm indicator

The SRHL1 series single phase solid state relays feature integrated heatsinks for excellent heat dissipation efficiency. The left/right terminal layout provides more flexible installation options. The SRHL1 series is available in zero cross turn-on and random turn-on models, and also feature alarm functions for safer operation. The units support both DIN rail mount and panel mount methods.
 

Left/Right Terminal Layout

The SRHL1 series features a left/right terminal layout offering more flexible installation options. Single phase solid state relays from Autonics is also available in top/bottom terminal layout for application in diverse user environments.

Left/Right Terminal Layout Solid State Relays
Intergated Heatsink Type SRHL1 Series

Top/Bottom Terminal Layout Solid State Relays
Integrated Heatsink Type SRH1 Series
*Other Top/Bottom Terminal SSR
Detachable Heatsink Type
SR1 Series
Slim Detachable Type
SRC1 Series

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.

Alarm Function (Overheating)

The alarm output and indicator (red LED) turns on in case of overheating due to product damage or overcurrent, providing safer operation for users.
^{*Available models: SRHL1-1240/4240/1440/1440R/4440}

Check Operation Status

Users can easily check the operation status of the solid state relays through input indicators (green LED)

Various Installation Methods

The solid state relay units support both DIN rail mount and panel mount methods providing more installation flexibility

Ordering Information