Honeywell Fire Systems HFS-T Fixed Temperature Thermal Detector, Base

The Honeywell Fire Systems HFS-T is an Intelligent sensor with a plug-in detector base that utilizes a state-of-art thermistor sensing circuit for fast response. The sensor is designed to provide open area protection with 50 foot spacing capability as approved by UL521.

Featuring a 135F fixed temperature alarm, the unit transmits an analog representation of temperature over a communication line to a control panel. Rotary decade switches are provided for setting the sensors address.

The HFS-T detector requires compatible addressable communications to function properly. Connect this sensor to listed-compatible control panels only.

UPC: 783863042386
Also known as: HF-HFST, HFST

Technical Specifications: Weight: 4.8 ounces (137 gm) Dimensions: Height: 2.0˝ (51 mm); Diameter: 6.1˝ (155 mm) Installation Temperature: –4°F to 100°F (–20°C to 38°C) Fixed Temperature Rating: 135°F (57°C) Operating Humidity Range: 10% to 93% Relative Humidity, Non-condensing Maximum Alarm Current (LED on): 6.5 mA @ 24 VDC Standby Current: 300 µA @ 24 VDC (one communication every 5 seconds with LED blink enabled) Operating Voltage Range: 15 to 32 Volts DC Peak

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