nVent RAYCHEM JBU-100-E junction box Maximize

nVent RAYCHEM JBU-100-E junction box

nVent RAYCHEM JBU-100-E modular junction box connects power to up to three BTV, QTVR, XTV, KTV or VPL heating cables. It can be directly mounted to a pipe or appropriate surface directly via a mounting bracket and is approved by PTB, FM and CSA for use in hazardous areas


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nVent RAYCHEM JBU-100-E kit is designed to connect power to up to three Raychem BTV, QTVR, XTV, KTV or VPL industrial parallel heating cable. It is approved by PTB, FM and CSA, for use in hazardous locations.

JBU-100-E is part of a modular component system, it allows for maximum flexibility and can be either wall or pipe mounted. Innovative CAGE CLAMP® terminals from WAGO provide fast installation and safe, reliable, maintenance-free operation.

The connection glands, insulation kits and mounting brackets need to be purchased separately 

nVent RAYCHEM JBU-100-E kit includes
1 xjunction box with terminals
1 xM25 gland for Ø 8 – 17 power cable
2 xM25 stopping plugs


 JBU-100-E Atex approvals
Area classificationHazardous area, Zone 1, Zone 2 (Gas), Zone 21, Zone 22 (Dust)
ATEX approvalsPTB 09 ATEX 1061 U
ATEX markingsEx II 2G Ex e (e mb) II
 Ex II 2D Ex tD (tD mbD) A21 IP66
 IECEx PTB 09.0039U
 Ex e (e mb) II
 Ex tD (tD mbD) A21 IP66
 CSA – Ex e II T*
 DNV Certificate No E-8933 and E-8934
JBU-100-E enclosure details
Enclosure materialElectrostatic charge-resistant glass filled engineered polymer, colour BLACK
Ingress protectionIP66
SealSilicone rubber
Lid screwsStainless steel
Operating temperature-50°C to +56°C ambient
JBU-100-E technical specification
Heating cable capabilityBTV-CR, BTV-CT, QTVR, XTV, KTV & VPL
Entries4 x M25
Installation temperature-50°C minimum
TerminalsSpring-type (2 phase, 2 neutral, 2 earth)
Max. conductor size10 mm² stranded, 10 mm² solid
Max. operating voltage480 Vac
Max. continuous current40A heating cable circuit
Weight1.7 kg