Installation procedures manual [PDF] (6 pages)
- Updated: 19.08.2026
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Terminator
TM DP-M
Power Connection Kit for Power Connection,
In-Line Splice Connection, T-Splice Connection,
or End Termination Applications
INSTALLATION PROCEDURES
2
Tools Required
Receiving, Storing and Handling
1. Inspect materials for damage incurred during shipping.
2. Report damages to the carrier for settlement.
3. Identify parts against the packing list to ensure the proper
type and quantity has been received.
Dimensions
Installation Precautions
• To minimize the potential for arcing and fire caused by product
damage or improper installation use ground-fault protection.
The National Electrical Code (NEC) and Canadian Electrical
Code (CEC) require ground-fault protection of equipment for
each branch circuit supplying electric heat tracing.
• Installation must comply with Thermon requirements and
be installed in accordance with the NEC, CEC, or any other
applicable national and local codes.
• Component approvals and performance ratings are based on
the use of Thermon specified parts only. User supplied power
connection fittings must be listed or certified for intended use.
• De-energize all power sources before opening enclosure.
• Keep ends of heating cable and kit components dry before and
during installation.
• Individuals installing these products are responsible for
complying with all applicable safety and health guidelines.
Proper personal protective equipment, or PPE, should be
utilized during installation. Contact Thermon if you have any
additional questions.
IP66/Type 4X -60°C ≤ Ta ≤ +55°C
Listed Heat Tracing Cable System 137M
Ordinary & Hazardous Locations
Class I, Division 2, Groups A, B, C, & D
Class II, Division 2, Groups F & G, Class III
Certifications/Approvals
Kit Contents
Item
Quantity
Description
1
1
Expediter Assembly
Support Cap with O-Ring
Threaded Grommet Compressor
Grommet
Support Base with O-Ring
2
1
Junction Box Lid
3
1
Junction Box Base with O-Ring
4
1
Nut
5
1
Banding
6
1
Banding Guide
7
1
Terminal Blocks with DIN Rail
(Refer to terminal block specifications for
maximum allowable wire size)
8
1
Junction Box Cord
9
1
Terminal Block Jumper
Terminator DP-M
9
1
2
6
4
3
8
5
7
3
1. Select appropriate grommet for specific cable
type.
3. Cut end of cable at angle (or use screwdriver) to
aid in piercing grommet. Leave additional cable
for expansion loop. See page 6 for in-line splice
(two cable) installation tips.
4. Insert cable into expediter. If mounted on
bottom of pipe, punch out weep hole.
5. Slide expediter toward pipe and route cable
through support base entry.
2. Put together expeditor assembly. Place
grommet in support base. Snap threaded
grommet compressor into support base. Screw
support cap onto support base.
GRW-L
12 mm x 5 mm
Opening
GRW-G
9 mm x 5 mm
Opening
GRW-F
7 mm x 4 mm
Opening
Cable Type
Cable Type
Cable Type
HTEK 3C60
HTEK 3C40
HTEK 2C50
HTEK 3C50
HTEK 3C30
HTEK 2C40
TEK 3C70
HTEK 2C70
HTEK 2C30
HTEK 2C60
TEK 3C40
TEK 3C60
TEK 3C30
TEK 3C50
TEK 2C60
TEK 2C70
TEK 2C50
TEK 2C40
TEK 2C30
6. Insert banding guide into expediter and snap
into place.
INSTALLATION PROCEDURES
9. Cut and remove overjacket by scoring overjacket
and bending cable. Do not cut metallic braid.
8. Cut off end of cable.
7. Mount expediter to pipe using pipe band. Do
not band over cable.
4
10. Separate braid strands at edge of overjacket and
pull cable through opening in braid. Twist braid
into a pigtail. Trim ends of braid.
11. Cut and remove pairing jacket by scoring pairing
jacket and bending cable. Do not cut insulation
on conductors.
Note: Three (3) conductor cable is shown in
the instructions and is representative of two
(2) conductor cable installations.
12. Remove insulation and fiberglass braid (HTEK
only) from ends of each conductor. Do not cut
bus wire strands.
13. Push excess cable back through expediter.
Tighten cap securely. Tape cable expansion loop
to pipe.
14. Using dimple molded into side of junction
box base to locate center of hole, drill for
user supplied power connection fittings
per manufacturer’s recommendations (if
necessary).
15. Mount junction box base on expediter. Make
sure to align slots to properly orient junction
box base.
16. Install power connection fittings (user
supplied) and pull in power and ground wires
(if necessary).
17. Install quick mount terminal blocks. Tightening
torque 1.5 Nm–1.8 Nm (1.1 ft-lb–1.3 ft-lb).
18. Complete system wiring. See page 6 for wiring
details for two conductor cables and three
conductor cables.
Terminator DP-M
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