GENERALThe J54 is a compact sprinkler switch designed to actuatealarms in either wet or dry pipe sprinkler systems. The J54Ais a dual switch version of the J54.The pressure switches are intended for either alarm or super-visory service. Each consists of a diaphragm pressure cap-sule connected to a plunger which moves in response topressure changes, operating a snap switch for signal initia-tion.
