JB-EX-20 and JB-EX-20-EP - Junction Boxes for trace heating cables


Fibre glass re-enforced junction box for nVent RAYCHEM FMT/FHT, RAYCHEM XPI and RAYCHEM MI trace heating cables using M20 connection kits.

These junction boxes are used to make reliable connections between heating cables, cold lead cables and a power cable.

  • JB-EX-20: Standard version for use with non-armoured power cables
  • JB-EX-20-EP: Version with internal earth plate and external earth stud

The box can be either wall mounted or pipe mounted using various support brackets.

Key and benefits:

  • Easy installation and maintenance
    • uses spring-type terminals
  • Highly reliable, as fully tested in combination with heating cables
  • Compatible with power cables of cross sections up to 10 mm²
  • Approved for use in hazardous areas

For heating and power cables with bigger cross sections, higher currents or more entries, refer to junction boxes type JB-82, JB-EX-21, JB-EX-21/35MM2, JB-EX-25/35MM2 and JB-EX-32/35MM2

Specyfikacje techniczne

Entries3 x M20, 1 x M253 x M20, 1 x M25
Terminals4 x 10 mm² (2 PE), spring type4 x 10 mm² (2 PE), spring type
Max operating current53 A53 A
Dimensions (mm)122 x 122 x 90122 x 122 x 90
Internal earth plate and earth stud-Included
Approved for use in hazardous areasYesYes


Connection and Protection