Industrial 55152 Over Under Speed Control Relay

Industrial 55152 Over Under Speed Control Relay is a compact, industrial-grade device that monitors motor speed and triggers control actions when speed deviates from preset limits, providing reliable over- and under-speed protection in automation circuits. Also marketed as Electro 55152 Mini-Speed Over Under Speed Control Relay, it operates over a frequency range of 100–1500 Hz, making it suitable for fast-paced speed-monitoring applications in equipment where precise rotational speed is essential. It is designed for integration in control circuits to enforce speed thresholds without complex wiring, supporting straightforward installation in industrial systems that require consistent speed regulation.