Protectowire CTM-530


Interface Module for Protectowire Type CTI with LCD Display and Navigation Buttons

Availability: Estimated 2 - 4 Weeks

  • Factory New
Brand: Protectowire Part #: 81004 Categories: , Manufacturer Part #: CTM-530


The CTM-530 operates using Protectowire’s patented CTI Confirmed Temperature Initiation technology. When paired with Protectowire Type CTI Linear Heat Detectors, the module can distinguish between a mechanical short in the linear heat detector and a thermal alarm activation thereby greatly reducing the risk of false alarms. This multi-criteria detection method provides for short circuit discrimination, a feature previously unavailable for digital type linear heat detectors.


Weight 2 lbs

The Protectowire Company





Unit of Measurement

EA (Each)

Production Status




  • Provides a single zone interface for Protectowire Type CTI™ Linear Heat Detectors
  • Patented technology can distinguish between mechanical shorts and thermal alarm conditions (Short Circuit Discrimination)
  • Integrated Protectowire Alarm Point Location Meter with field calibration
  • 4×20 LED backlit LCD display
  • Modbus over RS-485 communications
  • 4-20mA outputs for Status and Alarm Point Location
  • 64 Event History Log (FIFO)
  • Optional intrinsically safe detection circuit available for use in hazardous locations.

Protectowire Interface Module with Confirmed Temperature Initiation (CTI™); CTM-530 Series

Protectowire - Data Sheet

CTM-530 Series Interface Module

Protectowire - Installation and Operation Guide