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

Tehniskā specifikācija

JB-EX-20 JB-EX-20-EP
Entries 3 x M20, 1 x M25 3 x M20, 1 x M25
Terminals 4 x 10 mm² (2 PE), spring type 4 x 10 mm² (2 PE), spring type
Max operating current 53 A 53 A
Dimensions (mm) 122 x 122 x 90 122 x 122 x 90
Internal earth plate and earth stud - Included
Approved for use in hazardous areas Yes Yes


Connection and Protection