RAYCHEM JB-EX-20 junction box, 3 x M20, 1 x M25 entries, 590V 53A , hazardous area

nVent Raychem JB-EX-20 junction box for FMT, FHT, XPI and MI heating cables, hazardous area certified

RAYCHEM JB-EX-20 junction box, 3 x M20, 1 x M25 entries, 590V 53A , hazardous area


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Product details

nVent RAYCHEM JB-EX-20 junction box. Electrostatic charge resistant glass filled engineered polymer enclosure, forms part of the modular components system and can be either pipe or wall mounted. The JB-EX-20 is approved for use in hazardous areas with nVent RAYCHEM FMT, FHT constant wattage cable, nVent Raychem XPI polymer insulated and MI mineral insulated heating cables.

Features & Benefits

  • Versatile: pipe or wall mounted
  • Simple to design: up to 590 VAC, 53 A
  • Easy to install: 4 x 10mm2 spring type terminals
  • Reliable long life: maintenance free, 10 year product warranty available
  • TECHNICAL DETAILS
    SPECIFICATIONS
    ApprovednVent RAYCHEM heating cables: FMT and FHT constant wattage, all XPI polymer and MI mineral insulated series resistance cables
    Rated voltage590 VAC
    Max. current rating(1)53 A
    Temperature range-55°C to +55°C(2)
    Min. installation temperature-55°C
    Terminals4 x 10mm² spring type
    Entries3 x M20, 1 x M25
    Enclosure materialElectrostatic charge resistant glass filled polymer: Colour BLACK
    Enclosure lid screwsstainless steel
    Enclosure lid gasketsilicone rubber
    Earth continuity plate (-EP versions)steel, zinc plated and blue chromated
    Temperature classificationIP 66


    JB-EX-20 junction box kit contents
    ContentJB-EX-20
    JB-EX-20-EP
    Junction box with terminals1N/A
    Junction box with terminals, earthing plate and studN/A1
    M20 stopping plug (cable ⌀8-15mm)11
    M20 rain plugs (temporary)22
    M25 plastic gland (cable ⌀8-15mm)1N/A
    M25 rain plug (temporaryN/A1
    terminal jumper1N/A
    * IMPORTANT* The above numbers are for circuit length estimation only. For more detailed information please request nVent RAYCHEM TraceCalc software design. nVent requires the use of a 30 mA residual current device to provide maximum safety and protection from fire. Where design results in higher leakage current, the preferred trip level for adjustable devices is 30 mA above any inherent capacitive leakage characteristic of the heater as specified by the trace heater supplier or alternatively, the next common available trip level for non adjustable devices, with a maximum of 300 mA. All safety aspects need to be proven
  • APPROVALS
    APPROVALS
    ATEX: PTB 00 ATEX 1002
    Ex II 2 G Ex edm ia[ia] IIC T6, T5 and T4
    Ex II 2 D Ex tD A21 IP66 T85°C, T100°C and T135°C mb IIIC Db

    IECEX: IEC PTB 08.0004X
    Ex e ia II, IIC T6, T5, T4
    Ex tD A21 IP66 T85°C, T100°C, T135°C

    EAC Ex: RU C-BE.ИM43.B01854
    ООО "ТexИмпорт"
    Ambient temp range -55°C...+55°C
    1Ex d e mb (ia) IIC T6...T4 Gb
    Ex tb IIIC T85°C...T135°C Ta -55°C...+55°C  IP66
    Made in India


  • DIMENSIONS
    DIMENSIONS AND WEIGHT
    JB-EX-20
    JB-EX-20-EP
    Mounting holes (mm)66
    Width (mm)
    122
    122
    Height (mm)
    120
    120
    Depth (mm)9090
    Weight (kg)
    0.9
    1.0
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