Description
HEACOTEX HCT-SR-33 Self-Regulating Heating Cable
HEACOTEX HCT-SR-33 is a parallel-circuit, irradiation cross-linked self-regulating heater cable. A conductive polymer core is extruded over multi-stranded, tin-plated, 16-gauge copper bus wires. The conductive core automatically increases or decreases its heat output in response to local temperature, and a flame-retardant polyolefin outer jacket is extruded over the assembly.
Because the cable self-regulates at every point along its length, it can be cut to any field length, overlapped without hot spots or burnout, and limits its own maximum sheath temperature. Optional tinned copper metal braid (the -CB option) and a flame retardant polyolefin outer jacket (the -J option) are available for installations on non-conductive surfaces such as plastic or painted pipe.
Features
- Self-regulating: heat output adjusts automatically along the entire cable length
- Cut-to-length on site — no dead or cold zones
- Safe to overlap — no hot spots or burnout
- Maximum sheath temperature inherently limited by the cable itself
- Reliable parallel-circuit construction
- Optional -CB (tinned copper braid) and -J (FR polyolefin outer jacket) for non-conductive surfaces
Specifications
| Service voltage | 220 V |
|---|---|
| Maximum circuit length | 65 m |
| Maximum maintenance temperature | 65°C |
| Maximum intermittent exposure | 85°C |
| Nominal output | 30 W/m at 0°C (declines with rising pipe temperature) |
| Bus wires | 16 AWG multi-stranded tin-plated copper |
| Outer jacket | Flame retardant polyolefin (optional -CB tinned copper braid, optional -J FR polyolefin jacket) |
Application
Ideal for maintaining fluid flow under low ambient conditions. Freeze protection and low-watt-density process temperature maintenance systems — such as product pipelines, process water, dust suppression systems, lube oil, condensate return, hot water and structure anti-icing — are typical applications.
Accessories required for installation: connection / termination kits (power connection, T-splices, in-line splices), thermostatic controls and junction boxes. Contact Heacotex for circuit-length estimation and spec advice.









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