Chromalox RTPC Power Connection Box


  • Molded of Durable Plastic Material (Ryton®‚ PPS)*
  • High Service Temperature
  • Corrosion Resistant
  • Integrated Connection Accessories and Controls
  • Thermal Stability DL Integrated Connection Accessories
  • Non-Flammable
  • High Strength and Rigidity
  • Stainless Steel Hardware to Ensure the Integrity of the System
  • Liquid Tight Design prevents moisture from reaching the electrical connections. All models are rated NEMA 4X.

Chromalox RTPC Power Connection Box is a NEMA 4X rated junction box designed to connect all Chromalox Rapid Trace Heating Cables to customer-supplied power wiring. This kit provides waterproof cable entry for up to three cables, enclosure support, terminal block and a waterproof, corrosion-resistant wiring enclosure with an opening to accept a 3/4″ conduit hub (Chromalox CCH-2 or equal). A pipe strap (Chromalox PS or equal) is required to attach this model to a pipe.

RTPC — Power Connection Kit

  • 1 molded junction box consisting of:
    • 1 base
    • 1 box w/conduit opening
    • 1 lid
  • 1 three position terminal block
  • 1 mounting screw for terminal block
  • 1 GRSR self-regulating cable sealing grommet
  • 1 GRCW constant wattage sealing grommet


  1. Three strategically placed cable entries allow maximum flexibility for insulation (Heating cable cut away for clarity).
  2. Stainless steel tie-down support provides positive attachment to pipes.
  3. Heavy-duty support legs give stable pipe mounting and provide conduit clearance for applications with up to three inches of insulation.
  4. Opening for 3/4″ (20 mm) conduit hub.
  5. Oblique sided box and cover allow easy access for wiring.
  6. Cable grommets provide water-tight seal between base, box, and cable. Use GRSR with all self-regulating cables. Use GRCW for constant wattage cables. One of each grommet included in kit. See table below for spare grommets.
  7. Three-position terminal block for easy wiring.
  8. Power wiring entry. Conduit hub not included.
  9. The gasket provides water-tight seal between the box and lid. It is affixed to the lid and holds the mounting hardware during assembly.


Chromalox RTPC Power Connection Kit_DpstarGroup