CAST Master Series® Transformers



The CAST Master Series® Transformers have mutliple taps and work great for larger CAST Lighting Installation.

  • CM900SSMT - CAST 900w Master Series: 12, 13, 14, 15, 16, 17, 18V taps, 125A lugs, 4 com., primary breaker, Stainless Steel 9”(W)x19”(H)x7”(D)
  • CM1200SSMT - CAST 1200w Master Series: 12, 13, 14, 15, 16, 17, 18V taps, 125A lugs, 5 com., primary breaker, Stainless Steel, patent pending, 9”(W)x19”(H)x7”(D)


  • Robust inrush protection to guard against tripping of breakers
  • Resin-sealed toroidal core - ensures for the highest possible efficiency
  • "Full Load" commons configuration - ensures that the transformer can be loaded to its capacity
  • Voltage taps of 12, 13, 14, 15, 16, 17 & 18 Volts
  • Extra-large 125 Amp terminal blocks - to accommodate up to (10) #12/2 wires
  • Extra-large wiring compartment
  • Inclues 24" PVC conduit - hides and protects home run wires going into the transformer
  • Stainless Steel enclosure
  • CAST 900w Master Series Transformer (CM900SSMT)
  • CAST 1200w Master Series Transformer (CM1200SSMT)



  • Input: 120V, 60Hz
  • Output: 12V-18V
  • Capacity: 900 or 1200 Watts
  • Transformer Core: Epoxy resin encapsulated, magnetic toroid, primary thermal protection
  • Primary Overload Protection: 12.5 Amp magnetic circuit breaker
  • Secondary Overload Protection: 25 Amp magnetic circuit breaker for each of the 4 commons
  • Electronic Components: Power bypass relay, double thermistor surge protection
  • Power Cord: 6-ft heavy uty #12/3 AWG power cord with 3-prong grounded wall plug
  • Secondary Terminal Blocks: 125 Amp rated, extra large


  • 304 Stainless Steel with removable outer plate
  • Includes 24" x 2" PVC wire conduit with locknut assembly


  • cUL 506 Listed, approved for exterior and interior use


  • 900W: 6.5" wide, 17" tall, 7" depth, 33 lbs.
  • 1200W: 9" wide, 19" tall, 7" depth, 57 lbs.


  • Lifetime on housing and core, 3-year warranty on electrical components
  • Fully field repairable

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