VENDOR: Vari-Lite

Vari-Lite C21 Power Through 1.8kW (15A) Dual SSR/Relay Module With Bypass Option, 350uS, 120V

$1,149.00 $1,091.55

The C21 Power Thru 1.8kW Dual SSR/Relay Module from Strand Lighting represents the next step in future-proofing a new or existing dimming system for incandescent, solid state, or moving lights.

Sold By: Vari-Lite


The C21 Power Thru 1.8kW Dual SSR/Relay Module from Strand Lighting represents the next step in future-proofing a new or existing dimming system for incandescent, solid state, or moving lights. The modules are interchangeable within a C21 Dimming System Rack, allowing complete circuit allocation flexibility. IGBT, SSR, and Non-Dim modules may be mixed in the same rack when using a hybrid lighting plot of traditional fixed lights, moving lights, or LED luminaires that need a relay controlled straight power circuit.

For modern installations, Power Through bypass modules provide a 350uS rise time Silicon Controlled Rectifier (SCR) dimmer in conjunction with a mechanical bypass relay for each dimmer. Each module has two  individual recess mounted switches that allow for a manual switch between Dimmer or Relay so that there is never a mistake about how your system is set up.

All circuit breakers are fully magnetic and designed for improved trip indication and feature a smooth face plate to eliminate breaker damage in touring applications.

Power Through modules offer:

  • On/Off relay activation through the control system
  • Dim/Non Dim switch on the face of each module
  • Power Thru modules are dual density
  • Dual back-to-back SCRs for each circuit
  • 350μS rise-time toroidal filters



Leveraging a rich legacy of innovation pioneering the entertainment industry’s most iconic lighting solutions, Vari-Lite offers an end-to-end portfolio of advanced, energy-efficient LED luminaires, data, architectural control, consoles, and power solutions that the world’s top lighting designers and consultants rely on to create unforgettable looks that amaze. This includes spectacular rock and roll shows, sporting events, moving dramatic performances, spiritual worship experiences, and memorable film and TV productions - at venues large and small.


All items ship directly from the manufacturer.

Contact us if you need to verify availability or lead time.

Ordering Info

Minimum Order Fee: None

Dropship Fee: None

Sales Tax: Tax will be added if this item is shipped to the following states: GA, NV, TX