Multi Voltage Relay, Application Smoke Detection, Systems Monitoring, Base Shape Square, Contact Form SPDT, Electrical Connection Type Hardwired, Full Load Current @ 120V AC 7 A, Full Load Current @ 240V AC 10 A, Mounting Style Not Applicable, Number of Relays 1, Operating Temperature – Maximum 158 Degrees F, Operating Temperature – Minimum -40 Degrees F, Phase Single