Amperite 120AP180-240C Electromechanical Time Delay Relay

Amperite 120AP180-240C is an electromechanical time-delay relay that provides a precision 180 to 240-second delay in a 120 VAC control system. This delay-on-make (timed operate) relay is designed to energize its output after the set interval once the input is applied, making it well-suited for sequencing motors, furnaces, conveyors, or indicator circuits where a controlled start delay is required. The timing range is adjustable within the 180–240 second window using the built-in control, allowing fine-tuning to match specific process requirements. The 120V input rating and Amperite's established reliability support durable operation in industrial control panels. In addition to its basic delay function, this model inherits Amperite's rugged electromechanical construction, which favors robustness in environments where solid-state relays may suffer from electrical noise or temperature sensitivity. Common applications include start-up sequencing for fans or blowers, soft-start for small motors, and timed warning or interlock circuits in equipment racks. The part number indicates the 120 V class and a preset 180–240 second timing range, aligning with Amperite's catalog of time-delay relays that use coil-driven timing to trigger a change in contact state after the delay period.