nVent RAYCHEM VPL is a family of power-limiting heat trace cables designed for pipe heat tracing in industrial applications. VPL can be used for pipe freeze protection and process temperature maintenance applications requiring high power output and/or high temperature exposure up to 455°F (235°C). RAYCHEM VPL cables can withstand routine steam purges and temperature excursions to 500°F (260°C) with power off.
Power-limiting cables are parallel heaters formed by a coiled resistor alloy heating element wrapped around two parallel bus wires. The distance between conductor contact points forms the heating zone length. This parallel construction allows the cable to be cut to length and terminated on site. The power output of RAYCHEM VPL heat trace cables decreases with increasing temperature. The relatively flat power temperature curve of VPL ensures a low start-up current and high output at elevated temperatures.
Additional Product Information:
- RAYCHEM VPL heat trace cables are approved for use in non-hazardous and hazardous locations.
- RAYCHEM VPL heat trace cables can be overlapped.
- RAYCHEM VPL heat trace cables meet the requirements of the U.S. National Electrical Code and the Canadian Electrical Code.
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