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The MD424 modular dimmer is the "muscle" of the modular system — an expandable heavy-duty, 4 channel, 2.4kW rack mount unit. The MD424 mounts in any 19" rack cabinet. Expand from 4 channels to 72 or more. Works in conjunction with the MD-CTRL DMX and Analog Interface module.


  • Rack mountable (standard 19" cabinet rack)
  • Three phase 120/208 VAC or single phase 120/240 VAC power input
  • 4 to 72 channels at 2.4kW per channel
  • DMX-512 and analog 0 to +10 VDC control inputs, highest takes precedence
  • Signal present and over temperature indicators
  • 20 amp high magnetic circuit breakers
  • Dual 40 amp solid state relay modules
  • Large 450μs risetime filter chokes
  • Powerpole input and terminal output from dimmer panels
  • Quick connect & disconnect control headers on ribbon cables
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