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 Approved nVent RAYCHEM heating cables: FMT and FHT constant wattage, all XPI polymer and MI mineral insulated series resistance cables Rated voltage 590 VAC Max. current rating(1) 53 A Temperature range -55°C to +55°C(2) Min. installation temperature -55°C Terminals 4 x 10mm² spring type Entries 3 x M20, 1 x M25 Enclosure material Electrostatic charge resistant glass filled polymer: Colour BLACK Enclosure lid screws stainless steel Enclosure lid gasket silicone rubber Earth continuity plate (-EP versions) steel, zinc plated and blue chromated Temperature classification IP 66 JB-EX-20 junction box kit contentsContent JB-EX-20 JB-EX-20-EP Junction box with terminals 1 N/A Junction box with terminals, earthing plate and stud N/A 1 M20 stopping plug (cable ⌀8-15mm) 1 1 M20 rain plugs (temporary) 2 2 M25 plastic gland (cable ⌀8-15mm) 1 N/A M25 rain plug (temporary N/A 1 terminal jumper 1 N/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 DbIECEX: IEC PTB 08.0004X
Ex e ia II, IIC T6, T5, T4
Ex tD A21 IP66 T85°C, T100°C, T135°CEAC 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-20JB-EX-20-EP Mounting holes (mm) 6 6 Width (mm) 122122 Height (mm) 120120 Depth (mm) 90 90 Weight (kg) 0.91.0 - DOWNLOAD DOCUMENTS