Product Details
The Edwards Signaling K-278B-1420 is a manual pull station designed for double action, featuring a single stage and double pole configuration with leads for field wiring connections and a key reset mechanism. This model is part of the Edwards Cat. No. 278B series, which consists of contemporary styled Lexan stations that can accommodate various application requirements and operational sequences. The K-278B-1420 operates as an open circuit device and allows for the addition of a resistor in series with the alarm initiating contacts when used alongside smoke detectors, ensuring that operation of the station does not extinguish alarm LEDs on activated detectors. For installation, the device can be semi-flush mounted using a standard North American 4 inch square box with a minimum overall depth of 2 1/4 inches (57 mm), or surface mounted with the Cat. No. 276B-RSB surface back box.
