4-Wire Heat Detector with Relay Output WT145

General Description

  The device is intelligent sensors that utilize a state-of-the-art thermistor sensing circuit for fast response. These sensors are designed to provide open area protection with 50 foot spacing capability. The device is a rate-of-rise temperature sensor with 135°F fixed temperature alarm.The device is a rate-of-rise with fixed temperature alarm thermal detector utilizing a state-of-the-art dual thermistor sensing circuit. These detectors are designed to provide open area protection with 50-foot spacing capability, and are to be used with compatible control panels only. Two LEDs on each detector light to provide 360° visibility of the detector indication.

Features and Benefits

• Compatible with all the security alarm system
• Alarm Relay Output(NO/NC can be adjustable)
• Unpolarized wire input
• Wide range of operating voltages(9V~28VDC)
• High precision electronic thermistor
• Built in microprocessor intelligent software
• Two LEDs blink standby, provide 360° visibility
• Insect-resistant screening
• Twist-on mounting base with tamper lock

Technical Specifications

• Diameter: 103mm
• Height (including mounting base): 55 mm
• Weight: 155 g
• Operating Temperature Range: -10°C to 50°C
• Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing
• Latching Alarm: Reset by momentary power interruption

Electrical Ratings

• Power Supply Voltage: 12 VDC (9V~ 28VDC)
• Standby Current: 200 μA@ 12VDC
• Alarm Current: 45 mA @ 12VDC
• Alarm Relay Contacts Rating: 2A@24VDC
• Temperature Alarm Sensitivity: 57°C (135°F) A1R

Installation Guidelines

  All wiring must be installed in compliance with the National Electrical Code, applicable state and local codes, and any special requirements of the local Authority Having Jurisdiction.

Ordering Information