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ETC/Elec Theatre Controls R20
Dual 20A 120V Relay Module


The Relay Module is a dual, plug-in mechanical relay assembly for use in the Unison Dimming Series rack enclosures.
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Our Price: $500.00
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ETC/Elec Theatre Controls R20
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The Relay Module is a dual, plug-in mechanical relay assembly for use in the Unison Dimming Series rack enclosures. Each Relay Module provides two electrically held relays, in the same form factor as standard dimmer modules. This enables designers to mix and match dimmer and relays for control of diverse loads. The 120V Relay Module has a 100,000A short circuit current rating (SCCR), and is UL and cUL listed for continuous duty at 100% of rated load. The aluminum chassis is finished with textured epoxy paint. This relay module is ideal for control of non-dimmable load types such as HID lamps.


  • Designed for use in Unison 100-120V Unison DRd rack enclosures
  • High Intensity Discharge ballasts (Metal Halide and High Pressure Sodium)
  • Non-dimmed On/Off loads
  • Motors
  • Power for fans and standard outlets
  • Moving lights, fog machines and other powered effects


  • Two 2.4kW circuits per module
  • Level-activated mechanical relays
  • High-density modular assembly
  • Die-cast aluminum chassis
  • Fully magnetic circuit breaker

Electrical Ratings:

  • 100,000A Short Circuit Current Rating (SCCR)
  • Module withstands hot-patching of cold loads up to full rating
  • UL and cUL LISTED


  • 20 amp, level-activated mechanical relay
    -Rated for 200,000 full loadactivations
    -Rated for 5 million no load activations
  • Rated for 1.50HP at 20.0A
  • Rated for 20A General Purpose, 10A Tungsten and 1.5 HP Motor Maximum

Power Device

  • Sealed, patented assembly
  • 4000V isolation between control and power components
  • Integral bonded heatsink

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