Description
The D273 Family includes the following detector models:
Model | Description |
D273 | Four-wire |
D273IS¹ | Four-wire with an isolated 135°F (57°C) heat sensor and sounder |
D273TH | Four-wire with 135°F (57°C) heat sensor |
D273THC | Four-wire with 135°F (57°C) heat sensor and auxiliary relay |
D273THCS¹ | Four-wire with 135°F (57°C) heat sensor, auxiliary relay, and sounder |
D273THE | Four-wire with 135°F (57°C) heat sensor and EOL relay |
D273THR² | Four-wire with 135°F (57°C) heat sensor and trouble relay |
D273THS¹ | Four-wire with 135°F (57°C) heat sensor and sounder |
D273THES¹ | Four-wire with 135°F (57°C) heat sensor, sounder, and EOL relay |
¹ Sounders produce 85 dB at 10 ft (3 m)
² The trouble relay indicates both Dirty Smoke Chamber and/or Power Loss conditions
Each of the detector models is UL Listed and works with commercial fire protective signaling and household fire warning systems. Each model detects smoke particles produced during wood, paper, and fabric combustion.
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