nvent JBS-100-STB Installation Instructions Manual

JBS-100-STB

Single Entry Power Connection With Junction Box
Installation Instructions

DESCRIPTION

The nVent RAYCHEM JBS-100-STB is a NEMA 4X rated power
connection kit. It is designed for use with BTV-CR, BTV-CT, QTVR-CT,
XTV-CT, KTV-CT and VPL-CT industrial parallel heating cables.

The JBS-100-STB utilizes screw terminal blocks to connect the
heating cable to power.

This kit may be installed at temperatures as low as –40°F (–40°C).
For easier installation store above freezing until just before
installation.

For technical support call your local nVent representative.

TOOLS REQUIRED

• Wire cutters • Pliers or adjustable wrench

• Utility knife • Needle nose pliers

• Large slotted screwdriver • Marker

• 1/4 in or smaller flat-blade screwdriver

nVent.com

• Wire stripper (for VPL-CT)

ADDITIONAL MATERIALS REQUIRED

• Pipe strap • GT-66 or GS-54 glass cloth tape

APPROVALS

Hazardous Locations

CLI, ZN1, AEx e II*
Ex e ll T*

(1)

Except VPL

*For system Temperature Code, see heating cable or design documentation.

(1)

Class I, Div. 2, Groups A, B, C, D
Class II, Div. 1 and 2, Groups E, F, G
Class III

-WS

Temp Code*

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 JBS-SPAP/N E90515-000

WARNING:

CAUTION:

KIT CONTENTS

Item Qty Description

A 1 Stand

B 1 Core sealer

C 1 Green/yellow tube

D 1 Cable lubricant

E 1 Cable tie

F 1 Lid

G 1 Box with terminal block

A

G

B

®

F

C

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.

Heating cable types

D

• Component approvals and performance
are based on the use of nVent-specified
parts only. Do not use substitute parts or
vinyl electrical tape.

• The black heating cable core and fibers
are conductive and can 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 and
flame-retardant foam.

E

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 of
cigarettes or tobacco. Consult MSDS VEN

0058 for further information.
CHEMTREC 24-hour emergency telephone:

[phone]

Non-emergency health and safety
information:

[phone]

.

2 | nVent.com

1

• Allow approximately 24 in

(60 cm) of heating cable
for installation. For VPL, cut

cable 12 in (30 cm) from bus

indentation.

• Cut off heating cable end at
about 45° for easier insertion.

Indentation (bus wire
connection on VPL
heating cables only).

12 in

(30 cm)

4

BTV and QTVR

XTV and KTV

VPL

Go to Step 5A

Go to Step 5B

Go to Step 5C

2

• Optional: If stand is to be
installed on bottom side of

4

pipe, knock out drain hole prior
to inserting cable.

• With label on stand facing

18 in

(45 cm)

desired direction of box

opening, push 18 in (45 cm) of

heating cable through stand.
Use cable lubricant if needed.

• Square off cable
end with 90° cut.

Drain

hole

Label on stand
indicates
direction of
box opening.

• Do not attach
stand to pipe
until step 12.

3

• Lightly score outer jacket around and down as shown.

• Bend heating cable to break jacket at score, then peel off
jacket.

Do not cut braid.

5A

BTV and QTVR

• Push braid back to create a pucker.

• At pucker use a
screwdriver to
open braid.

• Bend heating cable and work
it through opening in braid.

• Lightly score inner
jacket around and

(165 mm)

down as shown.

• Peel off inner jacket.

• Notch core.

1/4 in

(5 mm)

• Peel bus wire from core.

• Score core between
bus wires at inner
jacket.

• Bend and snap core.

6 1/2 in

7 1/2 in

(190 mm)

• Peel core from bus wire.

• Remove any remaining
core material from bus
wires.

• Pull braid tight to make
pigtail.

Go to Step 6

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5B

XTV and KTV

5C

VPL

• Push braid back to create a pucker.

• At pucker use a
screwdriver to
open braid.

• Bend heating cable and work it
through opening in braid.

• Lightly score inner jacket
around and down as shown.

• Peel off inner jacket.

• Cut and remove all
fiber strands.

• Score and remove
center spacer.

6 1/2 in

(165 mm)

• Push braid back and bunch
as tight as possible.

• Lightly score inner
jacket around and
down as shown.

• Peel off inner jacket.

• Unwind heating element, cut
and remove as shown.

• Lightly score clear
jacket around and
down as shown.

6 in

(152 mm)

6 in

(152 mm)

• Remove any remaining
fiber material from bus
wires.

• Pull braid tight to make pigtail.

Go to Step 6

• Bend heating cable
to break jacket at the
score then peel off
jacket.

• Push braid forward.
Use a screwdriver to
open braid as shown.

• Bend heating cable and work
it through opening in braid.

• Remove insulation
from ends of bus
wires.

• Pull braid tight to
make pigtail.

1/2 in

(13 mm)

Go to Step 6

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6

7

• Mark the jacket
as shown.

5/8 in

(15 mm)

8

• Push core sealer onto the heating cable to the
mark made in step 6.

Note: Extra force may be required for larger
cables or at lower temperatures.

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 into the guide tubes as shown.

Make sure all strands

go into the tubes.

Tubes

9

• Remove the guide tubes and dispose of
them in a plastic bag.

• Slip the green/yellow tube onto the braid.
Heat-shrinking is not required.

Make sure the bus

wires do not kink,

bunch, or crossover.

10 11

• Trim bus wires and braid.

1/2 in

(13 mm)

1/2 in

(13 mm)

• Pull heating cable back into stand so 1 in (25 mm) is

exposed as shown. Use cable lubricant if needed.

1 in (25 mm)

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12

• Fasten stand to pipe with
label facing desired direction
of box opening. Do not pinch
heating cable.

• Loop and tape extra heating
cable to pipe.

1 in (25 mm)

Pipe strap

13

• Screw box onto stand until it stops. Do not overtighten.

Note: For 1 in (25 mm)
and smaller pipes use
adapter (purchased
separately) and install
between stand and pipe.

JBS-SPA
adapter for
small pipes

Glass cloth tape

14

(Optional) To change direction of box opening:

Position
adapter
this side
up.

• Loosen locknut.

• Lift box and rotate. Make sure tab on threaded piece fits
into one of the four notches in box.

• Tighten locknut.

15

• Insert cable tie through slots on stand and box, and
tighten firmly to prevent box rotation.

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Notch

Trim

16

This kit uses screw style terminals.

To connect wires, fully insert into opening on side of
terminal block
through round opening and firmly tighten screw

1

. Insert small flat-blade screwdriver

2

.

2

Bend conductors for

easier insertion into

terminal block.

1

1

• Wire insertion

.

• Use green terminal for
braid and ground wire.

• Tighten screws

2

.

• Repeat

1

and 2 for

remaining wires.

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17

• Install conduit and fittings as shown.
To minimize loosening due to pipe
vibration, use flexible conduit.

• Pull in power and ground wires, strip

off 1/2 in (13 mm) of insulation and

terminate.

18

• Install lid.

• Apply insulation and cladding.

• Weather-seal the stand entry.

• Leave these instructions with the end user for future
reference.

3/4 in locknut

Water tight
conduit seal

Conduit

drain

Make sure

conductors are

not exposed.

nVent recommends the use
of a conduit drain to prevent
water condensation build-up.

Weather seal

North America

Tel [phone]
Fax [phone]

[e-mail]

Europe, Middle East, Africa

Tel [phone]
Fax [phone]

[e-mail]

Asia Pacific

Tel [phone]
Fax [phone]

[e-mail]

Latin America

Tel [phone]
Fax [phone]

[e-mail]

nVent.com

©2018 nVent. Al l nVent marks and logos a re owned or license d by nVent Service s GmbH or its affi liates. All other tr ademarks are the p roperty of the ir respective own ers.
nVent reser ves the right to chang e specificat ions without noti ce.

Raychem- IM-H57 741-JBS100 STB-EN-1805 PN P000000363