Spec Sheet
The BRK RM4 is a 120V AC Relay Module. When connected to BRK or First Alert alarms, this relay is designed to activate an auxiliary device such as a bell, siren, strobe light, exhaust fan, door closer, etc. when the alarm sounds. RM4 contains Form-C contacts that switch between normally open and closed contacts. Maximum contact rating: 120-volt AC and 30-volt DC; Resistive-15 amps; Motor-1/3 horsepower. 10-Year Limited Warranty