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Bosch D273THC Four-Wire Smoke/Heat Detector with Auxiliary Relay

Bosch D273THC Four-Wire Smoke/Heat Detector with Auxiliary Relay

$ 48.6600
Bosch D273THC Four-Wire Smoke/Heat Detector with Auxiliary Relay

SKU: D273THC

Model: D273THC

Condition: New

Availability: Usually ships within 2-5 days

$48.66
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D273THC Four-Wire Smoke/Heat Detector with Auxiliary Relay. Four-wire smoke detector with an isolated 135°F(57°C) heat sensor and an auxiliary relay.

This detector model is UL Listed and works with commercial fire protective signaling and household fire warning systems. Detects smoke particles produced during wood, paper, and fabric combustion. This detector model use an infrared (IR) LED light source and a silicon photodiode to measure light in a chamber. A fine screen covers the chamber to deter insects and reduce dust accumulation and nuisance alarms. During a fire, smoke particles reflect light onto the photodiode. When the photodiode measurements exceed the alarm threshold, the detector signals an alarm condition. After the alarm condition clears, interrupt power at the control panel to reset the detector. When a D132B Reversing Relay Module is used, the LED does not latch on alarm.

  • 12VDC or 24VDC input
  • Designed for commercial or residential use
  • Four-wire application
  • Light-emitting diodes (LEDs) indicate the status of the chamber, power, and alarm
  • Removable terminal block to simplify wiring connections
Brand Bosch
Condition New
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