nvent RAYCHEM JBM-100-STB NEMA 4X-Rated Connection Kit Instruction Manual
- September 3, 2022
- nVent RAYCHEM
Table of Contents
RAYCHEM
JBM-100-STB
NEMA 4X-rated connection kit Installation
Instructions
APPROVALS
Hazardous Locations
CLI, ZN1, AEx e II (1)| | Class I, Div. 2, Groups A, B, C, D
Class II, Div. 1 and 2, Groups E, F, G
Class III
Temp Code
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Class I Zone 2 IIC| | Class I Division 2 (Zone 2*), Groups A, B, C, D
CL I ZN 1 AEx be IIC T Gb
ZN 21 AEx TB IIIC T°C Db
Ex eb IIC T Gb
Ex tb IIIC T*°C Db
-
For system Temperature Code, see heating cable or design documentation.
- Except VPL, HTV
- For HTV-CT only ** Per CE Code Table 18
- Except HTV
KIT CONTENTS
| Item | Qty | Description |
|---|---|---|
| A | 1 | Stand assembly |
| B | 2 | Grommet plugs |
| C | 1 | Box plug, o-ring, and locknut |
| D | 1 | Cable lubricant |
| E | 3 | Core sealers |
| F | 3 | Green/yellow tubes |
| G | 1 | Box with terminals (max: 3/4″ conduit & 8 AWG wire) |
| H | 1 | Lid |
| I | 1 | Spanner |
| J | 1 | Strain relief |
Power Connection, Powered Splice, Powered Tee, Dual Power Connection, Splice or Tee with Junction Box
DESCRIPTION
The nVent RAYCHEM JBM-100-STB is a NEMA 4X-rated connection kit. It is
designed for use with nVent RAYCHEM BTV-CR, BTV-CT, QTVRCT, XTV-CT, KTV-CT,
HTV-CT, and VPL-CT industrial parallel heating cables. The kit can be used to
connect one, two, or three heating cables to power, to connect two separate
heat-trace circuits, or splice or tee up to three heating cables.
Note: For two or more heating cables powered by a single circuit, the
length of each heating cable should not exceed the maximum allowable circuit
length published in the nVent RAYCHEM self-regulating cables design guide and
the total current of all heating cables on the circuit should equal no more
than 80% of the circuit breaker current rating.
The JBM-100-STB utilizes screw terminal blocks to make electrical connections.
This kit may be installed at temperatures as low as –67°F (–55°C). For easier
installation store above freezing until just before installation.
For technical support call your local nVent representative.
TOOLS REQUIRED
- Marking pen
- Utility knife
- Needle nose pliers
- Wire stripper (for VPL-CT)
- 3/8 in hex key (required for splice and tee connections)
- Wire cutters
- Large slotted screwdriver
- Adjustable pliers
- 1/4 in or smaller slotted screwdriver
ADDITIONAL MATERIALS REQUIRED
- Pipe strap
- GT-66 or GS-54 glass cloth tape
OPTIONAL MATERIALS
- Recommended conduit drain: JB-DRAIN-PLUG-3/4IN P/N 278621-000
- Small pipe adapter for 1 in (25 mm) and smaller pipes: Catalog number JBM-SPA P/N D55673-000
WARNING:
This component is an electrical device that must be installed correctly to ensure proper operation and to prevent shock or fire. Read these important warnings and carefully follow all of the installation instructions.
- To minimize the danger of fire from sustained electrical arcing if the heating cable is damaged or improperly installed, and to comply with the requirements of nVent, agency certifications, and national electrical codes, ground-fault equipment protection must be used. Arcing may not be stopped by conventional circuit breakers.
- The power connection may be powered by more than one circuit. Be sure all power sources are de-energized before opening the box.
- Component approvals and performance are based on the use of event-specified parts only. Do not use substitute parts or vinyl electrical tape.
- The black heating cable core and fibers are conductive and can be short. They must be properly insulated and kept dry.
- Damaged bus wires can overheat or short. Do not break bus wire strands when scoring the jacket or core.
- Keep components and heating cable ends dry before and during installation.
- Use only fire-resistant insulation materials, such as fiberglass wrap or flame-retardant foam.
CAUTION:
HEALTH HAZARD: Prolonged or repeated contact with the sealant in the core
sealer may cause skin irritation. Wash hands thoroughly. Overheating or
burning the sealant will produce fumes that may cause polymer fume fever.
Avoid contamination by cigarettes or tobacco. Consult MSDS VEN 0058 for
further information.
CHEMTREC 24-hour emergency telephone: (800) 424-9300
Non-emergency health and safety information: (800) 545-6258.
HEATING CABLE TYPES
-
Determine heating cable type and continue as shown.
-
Cut each heating cable 12 in (30 cm) from the center of the first indentation, cut at a 45° angle.
-
Allow approximately 24 in (60 cm) of heating cable for installation.
-
Cut off heating cable end at a 45° angle for easier insertion.
Complete steps 2 through 6 for each heating cable before going on to the next length of heating cable. -
Do not remove box nut from stand.
Push heating cable through stand and nut as shown. Use cable lubricant if needed. -
Lightly score outer jacket around and down as shown.
-
Bend heating cable to break jacket at score, then peel off jacket.
-
Determine heating cable type and continue as shown.
-
Mark the jacket as shown.
-
Pull heating cable back into standing as shown. Use cable lubricant if needed.
-
Repeat steps 2 through 7 for other heating cables before continuing to step 8.
-
Fasten stand to pipe. Do not pinch heating cables.
-
Loop and tape extra heating cable to pipe.
-
Remove box nut.
-
Install grommet plugs in unused openings.
-
Place junction box onto stand. Align key ways in large box holes with alignment feature on stand.
-
Put box nut back onto stand.
-
Tighten box nut with a spanner.
-
Slide strain relief overheating cables, down onto box nut.
-
Secure strain relief by tightening screws.
CAUTION: Health Hazard. Wash
hands after contact with sealant in core sealer. Consult material safety data
sheet VEN 0058. -
If needed, re-twist and straighten bus wires, then insert bus wires into guide tubes as shown.
-
Push core sealer onto the heating cable to the mark made in step 6.
-
Remove the guide tubes and dispose of them in a plastic bag.
-
Slip the green/yellow tube onto the braid.
-
Trim bus wires and braid.
-
Repeat steps 12 through 15 for all heating cables.
This kit uses screw-style terminals.
To connect wires, fully insert into opening on side of terminal block 1. Insert small flat-blade screwdriver through a round opening and firmly tighten screw 2.
-
Wire insertion 1.
-
Refer to wiring diagram, steps 18A, 18B, or 18C.
-
Tighten screws 2 .
Use green terminal for braid and ground wires.
Power Connection Wiring
WARNING: Shock Hazard. When the power connection is energized by two
circuits, the L1 and L2 jumpers must be removed to prevent an electrical
short.
- Install conduit and fittings as shown. To minimize loosening due to vibration, use flexible conduit.
- Pull in power and ground wires, strip off insulation, and terminate.
- nVent recommends the use of a conduit drain to prevent water condensation build-up.
-
Install box plug.
-
Install lid. Torque = 1.02 to 1.47 Nm
-
Apply insulation and cladding.
-
Weather-seal the stand entry.
-
Leave these instructions with the end user for future reference.
WARNING: Explosion Hazard- Substitution of components may impair
suitability for Class I Division 2 (Zone 2)
WARNING: Explosion Hazard- Do not disconnect equipment unless power has
been switched off or the area is known to be non-hazardous.
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
[email protected]| Europe, Middle
East, Africa
Tel +32.16.213.511
Fax +32.16.213.604
[email protected]| Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
[email protected]| Latin
America
Tel +1.713.868.4800
Fax +1.713.868.2333
[email protected]
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nVent.com/RAYCHEM
©2021 nVent. All nVent marks and logos are owned or licensed by nVent Services
GmbH or its affiliates.
All other trademarks are the property of their respective owners.
nVent reserves the right to change specifications without notice.
RAYCHEM-IM-H57742-JBM100STB-EN-2111
PN P000000364
Documents / Resources
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nvent RAYCHEM JBM-100-STB NEMA 4X-Rated Connection
Kit
[pdf] Instruction Manual
JBM-100-STB NEMA 4X-Rated Connection Kit, JBM-100-STB, NEMA 4X-Rated
Connection Kit
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