ALCO Controls 901137C Industrial AC Coil Relay

ALCO Controls 901137C is an industrial AC coil relay used to switch electrical loads in control circuits for refrigeration, HVAC, and related equipment. The coil is rated for 208-240 VAC, enabling direct interfacing with common control logic and power distribution in commercial and industrial environments. Manufactured by ALCO Controls, a brand now part of Copeland under Emerson, this model is part of a lineup of mechanical and electronic controls used in cooling and climate systems. The 901137C designation identifies a specific relay in ALCO's catalog and is intended to energize control circuits that drive higher-current devices from low-voltage signals. In typical installations, such relays enable sequencing, interlocks, and alarm logic within refrigeration and climate-control systems by switching loads in control panels. When integrating the 901137C, verify that its coil voltage matches the system and that the relay is compatible with other ALCO Controls components in the installation. This model can be used to replace or upgrade relays in existing ALCO-based installations and in new projects that specify ALCO Controls devices for refrigeration and air-conditioning applications.