The LiftMaster K24-24-1 Relay (24V) is an OEM replacement control relay used in select LiftMaster operators and accessories to switch circuits reliably within the control system. As a 24-volt coil relay, it enables isolation between low-voltage control inputs and higher-current device outputs, supporting functions such as activating motors, brakes, or signaling devices within compatible LiftMaster commercial door operators, gate operators, and access control equipment. This part is designed specifically to restore proper operation when a factory relay has failed, maintaining intended performance and compatibility across supported LiftMaster systems.
Use the K24-24-1 when a 24V control relay is specified in your LiftMaster service manual or wiring diagram. For safe installation, disconnect all power, verify that the coil voltage matches your control circuit (24V), and wire the relay per the exact terminal assignments shown for your model. Because relay styles and pin layouts vary by operator and production run, confirm the part number and fitment against your unit’s documentation or LiftMaster technical support before replacement. Professional installation is recommended to ensure proper operation of the operator, external accessories, and safety devices.