nVent RAYCHEM 465 Single Point Electronic Controller For Fire Protection Pipe Tracing Systems

The nVent RAYCHEM 465 is a c-UL-us Listed single point heat tracing controller designed for fire sprinkler/fire suppression systems. It includes a 5″ inch color touch screen display for intuitive set up and programming right out of the box. The 465 controller may be used with line-sensing or ambient-sensing and Proportional Ambient-Sensing Control (PASC) modes. It measures temperatures with two 2 KOhm / 77°F (25°C), 2-wire Thermistors connected directly to the unit. The controller can also measure ground fault current to ensure system integrity. The controller includes ground fault current sensing and relaying equipment compliant with UL1053 standard.

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Product Description


  • 5″ color touch screen for easy set-up and programming
  • Easy to install push-in cage-clamp wire terminals
  • Standalone unit that can be DIN Rail mounted
  • Ground fault equipment protection (GFEP) compliant with UL1053
  • User-defined settings for ground fault alarm and trip levels
  • User-defined high temperature cut-out setting
  • Autocycle feature to automatically and regularly test the system for any problems
  • Energy efficient PASC mode available
  • Alarm relay for remote alarm annunciation to the fire panel
  • Two temperature sensors that can be used for ambient and line sensing
  • Programmable in advance in power-off mode by using external power bank/charger and USB connection 

Electrical Properties

Supply voltage                                                  120/208/240/277 VAC, 50/60 Hz
Ambient operating temperature range           32°F (0°C) to 105°F (40°C)
Ambient storage temperature range              -4ºF (-20ºC) to 122ºF (50ºC)
Internal power consumption                           9 W maximum
Output relay switching capacity                     24 A @ 120/208/240/277 +/-10% Vac; 50/60 Hz
Supervisory relay                                             Single pole single throw relay, volt-free; maximum switching capacity (resistive load only) 1 A/24 VDC, 1 A/24 VAC
Circuit breaker                                                 30 A maximum
Ground fault                                                     30 mA, complies with UL 1053 standard
Real time clock                                                Automatic daylight saving time and leap year correction
Clock accuracy                                                +/-10 minutes per year
Keylock                                                             Password protection for parameter settings
USB port                                                           For pre-setup in power off mode; for firmware upgrades 

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General Insulation Company Inc. is an insulation supplier / insulation distributor that stocks and fabricates a wide variety of industrial and commercial air barrier, vapor barrier, moisture and water barrier products for the construction market.

nVent RAYCHEM 465 Technical Data Sheet