Key Switches
Alarm Controls Key Switches and Mortise Cylinders
Alarm Controls key switches come as KA ace round key switches, with contacts rated 7A (resistive) at 125VAC or 28VDC, and flat key switches such as the KA-109A, rated 2 amps at 46VDC or 2.5 amps at 120VAC. Options include ON/OFF or momentary action and key removal in the ON, OFF or both positions, and in these listings an A suffix means keyed alike (KA-105A) while no suffix means keyed different (KA-105).
The CY-1A is a standard 1-1/8" mortise cylinder for the MCK weatherproof mortise stations, supplied with 2 keys and keyed alike, the CY-1 is keyed different, and the CY1-2642 is keyed to 2642. Extra keys include the EL101 for the KA109A or KA110A and the CY1AEXKEY for the CY1A.
Browse the full Alarm Controls catalog, or Contact our team to match a key switch to your door or panel.