Autonics SRH1-A420-N Single-Phase Analog Input Solid State Relay (SSR), Integrated Heatsink, 20A, 200–480VAC Load, 4–20mA Input

The Autonics SRH1-A420-N is a single-phase solid-state relay (SSR) with an integrated heatsink designed for proportional AC power control. It accepts a 4–20mA analog control signal and switches 200–480VAC loads up to 20A. The relay supports both phase control and cycle control, making it ideal for industrial heating equipment, ovens, plastic processing machines, and temperature control systems.

Key Features

• Single-phase Solid State Relay (SSR)
• Integrated aluminum heatsink
• 4–20mA analog control input
• 200–480VAC, 50/60Hz load voltage
• 20A maximum load current
• Supports Phase Control (equal phase/equal power)
• Supports Cycle Control (fixed or variable cycle)
• Internal jumper for operating mode selection
• LED input status indicator