Pentair Thermal Management Becomes nVent
- A New Opportunity to Spark Innovation

Your trusted brands RAYCHEM, TRACER, NUHEAT, PYROTENAX and TraceTek are now part of nVent Thermal Management.

The new company website is in development and will be launched in January 2019. Until then, we are happy to serve your information needs through our current website.

For more information on nVent:
Download press release
Visit nVent.com
(currently English only)



The nVent PYROTENAX PTJB is a small junction box with three entries that is designed for use with PYROTENAX mineral insulated (MI) electric heat trace cables. These junction boxes can be used for MI-related applications such as pipe freeze protection, process temperature maintenance and longline heating. The entries are each 3/4" NPT entries. Each PYROTENAX PTJB junction box includes one plug and two 3/4" x 1/2" reducer as well as a 4 pole terminal block (CSA-600 Vac, 65 A, 18–6 AWG / UL-300 Vac, 65 A, 18–6 AWG) and stainless steel support bracket (U-clamp).

Additional information about the PYROTENAX PTJB:

  1. UL and CSA approved for: Class I, Div. 1 & 2, Groups A, B, C, D; Class II, Div. 1 & 2, Groups E, F, G.
  2. Enclosure dimensions are 5.5" x 4.75" x 3" (140 mm x 121 mm x 76 mm).



Warranty Information

Warranty Extension Available

Connection and Protection