Chromalox FPASM Freeze Protection Ambient Sensing Monitor Series

Features

  • Standard NEMA 4 Enclosures
  • NEMA 4X Stainless Steel Enclosure Option
  • Hand/Off/Auto Selector Switch
  • 6,12,18,24,30,36,42 Circuit Options
  • 15, 20, 30, and 50 Amp Single pole and Double-pole 30 mA Ground Fault Thermal-Magnetic Circuit Breakers
  • 100 and 225 Amp Main Bus
  • Single-phase 120/240 VAC
  • Three-phase 120/208 VAC 4-Wire
  • Three-phase 277 VAC 4-Wire
  • 100 and 250 Amp Main Disconnect Switch Option
  • Ambient and Line Sensing Control
  • WeatherTrace Sentinel Monitoring with Common Alarm and Re-Ring Feature*
  • Z-Purge Pressurization System for Class 1, Division 2 Option
  • Enclosure Heater Option for Subzero Ambients
  • UL and cUL Third Party Approvals
Enquiry

The FPASM WeatherTrace with the Sentinel System continually monitors the supply voltage to each individual heat trace circuit. Loss of voltage or a ground fault condition will trigger an automatic alarm condition, alerting plant personnel of critical process problems and reducing downtime. An annunciator panel then identifies the faulted zone and a Common Alarm is activated with the re-ring feature.*

* The re-ring feature allows the WeatherTrace panel to communicate additional alarm conditions in the system by momentarily clearing and resetting the alarm output contact. The customer’s monitoring device such as a PLC or DCS would interpret this condition to alert the operators of an additional alarm occurring.

The FPASM series controls multiple heat trace circuits via an ambient sensing external thermostat, external electronic controller or via an ambient sensing, door-mounted 1601E controller. Chromalox recommended controllers include: RTAS, RTAS-EP, B100, E100 or the 1601E microprocessor controller.

Operating Modes

  • Automatically with the external controller or
  • in manual override via the Hand/Off/Auto selector switch.

Specification

Power Source  120/240 VAC Single Phase
120/208 VAC Three-Phase 4-Wire
277/480 VAC Three-Phase 4-Wire
Ambient Operating Temperature -32˚F to 122˚F (With Enclosure Heater)
Field Wire Size 14 – 18 AWG (15 – 30 Amp C.B), 8 – 4 AWG   (40 Amp C.B)
Ground Fault Breaker Type 30mA Ground Fault Equipment Protection
Enclosure  NEMA 4 or NEMA 4X 304 Stainles Steel (option)
Main Bus Size 100 Amp and 225 Amp
Main Breaker Size 100 Amp Two-Pole Main Disconnect Switch with    through Door Rotary Handle
250 Amp Three-Pole Main Disconnect Switch    with through Door Rotary Handle
Pressurization System Type Z Purge Pressurization System for Class 1   Division 2 Area
Approvals  UL and cUL

Ordering Information

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