Self-limiting heating cable DANFOSS 98-300074, length 8 m

Self-limiting heating cable DANFOSS 98-300074, length 8 m, is a flexible heat-tracing solution designed to provide freeze protection and temperature maintenance for pipes, gutters and small installations. The cable automatically adjusts its heat output along the length according to ambient temperature, reducing power where it is warm and increasing output where it is cold. It can be cut to length following the manufacturer's installation instructions and is suitable for retrofitting to existing pipework or integrating into new installations that require localized frost control.

Advantages

The self-regulating construction ensures that heat output varies with ambient conditions, improving energy efficiency and preventing overheating. Its flexible design allows straightforward routing along pipes, fittings and irregular surfaces. The cable provides continuous protection along its installed length without the need for multiple fixed-output heating elements, and installation is simplified because sections can be trimmed to size according to approved procedures. Suitable insulation and surface attachment enable reliable temperature maintenance and freeze protection in exposed areas.

Suitable for

• Freeze protection of water and drainage pipes in buildings and outdoor installations
• Preventing ice build-up in gutters and downspouts
• Maintaining process temperatures for small pipes and vessels
• Local frost control for pumps, valves and exposed fittings

Key specifications

• Type: Self-limiting (self-regulating) heat-tracing cable
• Length: 8 m
• Construction: Flexible polymer heating element with conductive core and jacket
• Temperature response: Automatic modulation of heat output according to ambient temperature
• Mounting: Surface-mount along pipes, gutters and fittings using recommended fasteners and insulation
• Power control: Varies along cable length; requires appropriate power supply and controls per installation requirements

How to use

Plan the installation route along the pipework or structure, ensuring the selected cable length and layout provide continuous coverage of the sections requiring protection. Cut the cable only where permitted by the manufacturer's instructions and make terminations and power connections using certified end seals, splice kits and a compatible power connection kit. Attach the cable to surfaces using appropriate clips or tape, then cover with suitable thermal insulation to achieve effective temperature maintenance. Integrate a thermostat, temperature sensor or control device when specific setpoint control or energy optimization is required.

Usage recommendations

Follow the manufacturer's installation manual and local electrical codes. Verify the compatibility of surface materials and insulation, use only approved end seals and connection accessories, and ensure electrical supply and protective devices are installed by a qualified electrician. Regularly inspect the cable and its attachments for damage, and replace or repair according to the manufacturer's guidance to maintain reliable freeze protection.