Introducing the 500°F (260°C) Protectowire Linear Heat Detector


Protectowire FireSystems is pleased to announce the release of our first FM Approved and UL Listed 500°F (260°C) Protectowire linear heat detector. The detector was specifically designed for applications where extreme environmental and product criteria must be met.

The features of Type PLR-CR 500°F (260°C) are:

  • High performance fluoropolymer outer jacket
  • Low resistance inner conductors
  • Flame retardant, low smoke jacket providing excellent abrasion resistance and mechanical properties
  • Excellent chemical resistance to a wide range of acids, bases, organic solvents, and gases
  • Very little change in tensile properties upon outdoor exposure to sunlight and weather

The input and feedback from our distribution network, fire protection engineers, and end-users has been tremendously helpful in designing this product to meet the demands of today’s evolving marketplace. The Type PLR-CR 500°F (260°C) degree detector is available now for immediate release.

If you have any questions or would like to inquire about pricing please contact our sales department at 781.826.3878 or

Protectowire Linear Heat Detector Data Sheet


Best Practices for Installing Linear Heat Detection

This video will provide you with best practices for installing Protectowire Linear Heat Detection products.

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