Cast Resin – Up to 35kV Class

HPS EnduraCoil™ E

Product Configurator & Drawings

Cast Resin Medium Voltage

HPS EnduraCoil™ is a high-performance cast resin product designed for many demanding and diverse applications.  Coils are precision wound with copper or aluminum conductors that are electrically balanced to minimize axial forces during short-circuit conditions.  They are formed with mineral-filled epoxy, reinforced with fiberglass and cast to provide complete, void-free resin impregnation throughout the entire insulation system.

  • Designed for indoor or outdoor applications
  • Encapsulated cast resin windings are durable for the most demanding environments typically found in marine, pulp & paper and petrochemical industries
  • Minimal maintenance required beyond removing surface contaminants such as dirt
  • Compact design fits more easily into confined spaces
  • Greater resistance to short circuits
  • Self-extinguishing in the unlikely event of fire
  • Environmentally friendly

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Rockwell Technology Partner

  • Meets North American Energy Efficiency Standards: U.S. - DOE 10 CFR Part 431 (DOE 2016); Canada - SOR/2018-201, Amd. 14 (NRCan 2019) & ON Reg. 404/12; Mexico - NMX-J-351-ANCE-2021
  • kVA ratings from 300 to 3000ANN, 4000AFN; IEC 60076
  • High voltage (primary) ratings up to 34.5 kV Class; up to 150 kV BIL (BIL per CSA and IEEE/ANSI standards)
  • Standard taps +/- 2.5%, +/- 5%
  • Low voltage (secondary) ratings of 208Y/120V to 600Y/347V & 2.4-5kV up to 60kV BIL
  • Frequency 50, 60 or 50/60 Hz
  • Insulation systems: 150°C (155°C per IEC 60076); 180°C (185°C per IEC 60076) 
  • Standard 80°C or 115° rise (others on request)
  • Type 1, 3/3R, 4/4X or 12 available. Type 3RE Plus enclosures available for improved outdoor performance.
  • Choice of copper or aluminum winding material
  • Coil format choice of either cast primary/cast secondary or cast primary/VPI secondary
  • Approvals: CSA - C22.2 No. 47 & C9-02; UL - UL 1562, up to 3 MVA (higher ratings available on request)
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