Check the listing for details. ETC R20-R2 Dual 20A 120V Relay Module. Condition: New. Listed at 580.00 USD. The ETC R20-R2 is a dual, plug-in mechanical relay assembly for Unison Dimming series rack assemblies. Each relay module contains two electrically held relays and has the same form factor as standard dimmer modules. This allows a designer to mix and match dimmers and relays for control of diverse loads. The R20-R2 is ideal for non-dimmable load types such as HID lamps.ETC R20-R2 Applications: Designed for use in Unison 100-0120V DRd rack enclosures Perfect for non-dimmed on/off loads High Intensity Discharge ballasts (metal halide and high-pressure sodium) Motors Power for fans and standard outlets Moving lights, fog machines, and other powered effectsETC R20-R2 Features:Two 20A, 2.4kW circuits per moduleHigh-density modular assemblyLevel-activated mechanical relaysDie-cast aluminum chassisFully magnetic circuit breakers100,000A short circuit current rating (SCCR)UL and cUL listed