Construction of Thermon VSX Heating Cables

1. Nickel-plated copper bus wires (2.1 mm²)
2. Semiconductive heating matrix and fluoropolymer
   dielectric insulation
3. Nickel-plated copper braid
4. Fluoropolymer overjacket provides additional protection
   to cable and braid where exposure to chemicals or
   corrosives is expected.

Applications for Thermon VSX Self-Regulating Heating Cable

High performance VSX self-regulating heating cables are designed specifically for process temperature maintenance or freeze protection where high maintain temperatures or high temperature exposure is required.

VSX withstands the temperature exposures associated with steam purging.

The heat output of VSX cable varies in response to the surrounding temperature by reducing its thermal output with increasing temperature and can be overlapped without temperature upset damage to the cable.

VSX cables are certified for use in ordinary (nonclassified) areas and in potentially explosive atomospheres in accordance with the ATEX Directive and the IEC Ex Scheme.

	II 2 G/D Ex e II T5 or T6 DEMKO 02 ATEX 0132424
	International Electrotechnical Commission IEC Certification Scheme for Explosive Atmospheres UL 05.0008
	Factory Mutual Research Ordinary and Hazardous (Classified) Locations
	Underwriters Laboratories Inc. Hazardous (Classified) Locations

Ratings

• Available Watt densities: 15, 32, 48, 64 W/m at 10°C
• Nominal supply voltage¹: 230 Vac
• Maximum maintenance temperature: 150°C
• Maximum continuous exposure temperature
  Intermittent power-on: 232°C
  Intermittent power-off: 250°C
  Continuous power-off: 204°C
• Minimum installation temperature: -60°C
• Minimum bend radius
  @ -15°C: 10 mm
  @ -60°C: 32 mm
• T-rating²
  15, 32, 48 and 64 W/m: T3 200°C
  Based on stabilized design³: T4 to T6

Notes:

Power Output Curves

The power outputs shown apply to cable installed on insulated metallic pipe (using the procedures outlined in IEEE Standard 515) at the service voltages stated below. For use on other service voltages, contact us.

Product Type 230 Vac Nominal Power Output at 10°C W/m VSX 5-2 15 VSX 10-2 32 VSX 15-2 48 VSX 20-2 64

Circuit Breaker Sizing and Type

Maximum circuit lengths for various circuit breaker amperages are shown below. Breaker sizing should be based on the National Electrical Code or any other applicable code. The National Electrical Code require ground-fault protection of equipment for each branch circuit supplying electric heating equipment. Check local codes for groundfault protection requirements.

Type B Circuit Breakers

Type C Circuit Breakers