SCREW TERMINAL CONNECTIONS ON BOTH SIDES OF THE SWITCH BLACK COLOR The Alpha Communications® 7111 and 7113 door contact switch units are typically installed (mortised) into a door frame to allow electrical current to flow thru to an electric door strike (or equivalent unit), without the need for exposed door loops.The model 7111 features 2 heavy-duty plated spring contacts and the 7113 features 3 heavy-plated duty spring contacts to assure positive electrical connections. Both models are designed for low-voltage operation. Compact design mounts flush into door and door frame Positive screw terminal connectors Works with a variety of electric door strikes Choose from 2-pin (7111) or 3-pin (7113) models Heavy duty plates spring contacts NOTE: CONTACTS ARE RATED AT MAX. 2 AMPS AT 12V OR 24V
