# PowerOptimal PowerGuard RL20-1 specification

 *INTRODUCING THE PowerGuard® RL20-1*

***[![PowerGuard RL20-1.png](https://docs.poweroptimal.com/uploads/images/gallery/2026-06/scaled-1680-/powerguard-rl20-1.png)](https://docs.poweroptimal.com/uploads/images/gallery/2026-06/powerguard-rl20-1.png)***

***PowerGuard RL20-1 is a DIN-rail mount relay primarily designed for use in conjunction with the PowerGuard DPM20-8 demand control unit. Contacts are activated by a DC voltage which is opto-isolated from the control circuit. The contact configuration switches the mains live circuit to the output when energised.***

*This unit is designed and manufactured in South Africa.*

*SPECIFICATIONS*

***SPECIFICATIONS***

- Input power: 230 Vac
- Control voltage: 5 – 48 Volt DC
- Size: DIN standard, 48mm wide