model DRS-30

fire closure device with indicator switch package

two-temperature manually resettable

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Application

The DRS-30 fire closure device employs a two-temperature, manually resettable, electric thermostat sensor to interrupt the electrical power to actuators used on fire/smoke dampers. The DRS-30 permits testing of the damper closure by applying direct heat to the one or both of the sensor’s discs or by physically depressing one of the discs from the inside of the damper sleeve. The damper can be reopened by manually resetting the sensor from the exterior side of the damper sleeve, once the disc has cooled down below its set temperature. In addition to the fire closure device, the DRS-30 is factory equipped with an indicator switch package that employs an in-jamb assembly plate consisting of two single pole, double throw micro switches to provide full open and full closed blade indication from a remote location. The indicator switch package is factory installed directly to a damper blade.