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Model ZPD and ZPD3 Series -Heater Control Panel

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ZPD and ZPD3 series control panels use zero cross (burst firing) three phase digital SCR`s (Thyristors). Designed for larger electric heater loads, these panels are available in sizes from 85 to over 2500 amps.

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Digital SCR Features

  • Optional Remote display kit for door mounting
  • Sync-Guard to smooth out line current draw when multiple controllers are used
  • Shorted SCR Detection
  • UL/cUL,CSA,CE approval
  • 100 kA SCCR
  • Overtemp Alarm available
  • Overcurrent Trip alarm available
  • Phase Loss alarm available
  • Load voltage, current, power retransmission available
  • Heavy gauge gasketed enclosure finished in grey Epox
  • Integral "Dead Front" switch
  • "Off-On" Control Power selector switch
  • "Power-On" pilot light
  • Illuminated reset button
  • Digital indicating electronic temperature controller Circuit breaker with mechanism
  • Control transformer with fused primary lines and fused/grounded secondary lines
  • "Zero Fire" type SCR assembly with external cooling, Three pole safety magnetic contactor(s)
  • Electronic over-temperature controller
  • Fast acting fuses for circuit protection
  • Terminal strips for customer connections
  • Safety relay button to ensure safe shut down and the ability to enable systems remotely