Protectowire CTI-155X (1,000 feet)


CTI Linear Heat Detector; High Performance/ Industrial Applications Excellent Abrasion & Chemical Resistance, Alarm Temp. 155°F (68°C), 1,000 Feet

Availability: Estimated 30 days

Condition: New
Brand: Protectowire
Status: Active
SKU: 126914
Manufacturer Part #: CTI-155X-1000


The Protectowire family of Confirmed Temperature Initiation Linear Heat Detectors are advanced multi-sensor detectors consisting of models with alarm temperatures ranging from 135°F (57°C) to 356°F (180°C). Each detector is comprised of two special metallic alloy conductors individually insulated with a heat sensitive polymer. The insulated conductors are twisted together to impose a spring pressure between them, then wrapped with a protective tape and finished with a durable flame retardant outer jacket.

Additional information

Weight 16 lbs

The Protectowire Company




Unit of Measurement

FT (Feet)

Production Status




1000 feet


  • Uses advanced multi-sensor detection for highest immunity to false alarms.
  • Measures and confirms the temperature at the alarm point to provide true Confirmed Temperature Initiation (CTI).
  • Includes reliable digital operation with separate short circuit fault identification.
  • Distinguishes between short circuits and true alarm conditions.
  • Identifies and displays the location of an overheat or fire condition anywhere along its length when used with a Protectowire Alarm Point Location Meter.
  • Meets intrinsically safe standards and is FM Approved for Class I, II and III, Division 1, Groups A, B, C, D, E, F and G when used with required equipment.
  • Is manufactured under U.S. Patent 8,096,708 and has patents in many countries around the world.

Protectowire CTI™ Confirmed Temperature Initiation Linear Heat Detectors


Protectowire - Data Sheet

Important Installation Information CTI Linear Heat Detector


Protectowire - Installation Instructions

Protectowire Linear Heat Detector


Protectowire - Installation, Operation and Maintenance Manual