Submittal Sheet

ProMelt Cable consisting of a series resistance heating cable and a single
power lead for easy single-point connection. The heating cable length
cannot be cut to fit.
Specifications
Supply Voltage
120V, 1-phase
208V, 1-phase
240V, 1-phase
277V, 1-phase
Maximum Heater Current 24 Amps
Maximum Circuit Load* 50 Amps
Wire Spacing
3"
4"
*GFCI Class B (ground fault equipment protection) is required for each circuit.
Heating Density
120V 208V 240V 277V
3" Wire
Spacing
50 W/sf
170 BTUh/sf
4" Wire
Spacing
38 W/sf
130 BTUh/sf
Application
ProMelt Cables are used to melt ice or snow from an exterior surface
and are designed for outdoor use only, embedded in concrete, asphalt,
or sand.
Application Parameters
Min.Bend Radius 1 inch
Max. Exposure Temperature
(continuous and storage)
221°F (105°C)
Max. Exposure Temperature
(short-term for asphalt covering)
285°F (140°C)
Min. Installation Temperature 40°F (4.5°C)
For Snowmelt Applications
Job Name
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Contractor
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Job Location
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Approval
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Engineer
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Contractor’s P.O. No.
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Approval
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Representative
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ProMelt
™
Cable
Electric Snow and Ice Melting Cable
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials
without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
ProMelt Cables are available various lengths with voltage options of
120, 208, 240, and 277 volts.
ETL Listed for U.S. and Canada under UL 515, IEEE
515.1, and CAN/CSA C22.2 No. 130-03
Listing file number: 3151992
Installation Parameters
Determine a time to install the cable when equipment, heavy tools, and
site traffic will be minimal. Apply the surfacing courses over the cable the
same day the cable is installed.
If installing cable in the upper layer of a two-stage concrete slab or the
upper layer of an asphalt application, the cable should be completely
ready for the second stage. There is limited time between stages, as the
slab should not be allowed to fully cure or the asphalt to completely cool.
Therefore, lay out the cable and tie it to rewire that can be quickly lifted
into place after the first stage is laid.
If a slab sensor is installed in this second layer, plan ahead so this does
not cause the first layer to cure or cool too much.
Inspect the area and remove any sharp objects.
Install in temperatures at least 40°F (4.5°C).
IN ORDER TO AVOID PROPERTY DAMAGE, INJURY AND/OR DEATH
PLEASE REFER TO THE COMPLETE INSTALLATION MANUAL AND
WARNINGS PROVIDED WITH THE PRODUCT.
ES: PMCBL