Woodward MFR2S45B/PSV 8440-1734 Multifunction Relay & Control Unit for Generator Protection and Engine Control

The Woodward MFR2S45B/PSV (8440-1734) is a high-performance multifunction relay and control unit engineered for advanced generator protection, engine supervision, and power management applications. Part of the trusted Woodward MFR series, this unit combines protection relays, metering, annunciation, and control logic into a single compact device used widely in power generation panels, marine automation systems, and industrial switchgear.

This controller continuously monitors critical electrical parameters such as voltage, current, frequency, real/reactive power, and provides configurable protection against overload, short circuit, reverse power, over/under frequency, and voltage faults. The integrated display and keypad allow easy on-site configuration, fault diagnosis, and parameter adjustment, making it ideal for both OEM panel builders and maintenance engineers.

Commonly deployed in diesel generator synchronization panels, AMF panels, and marine genset control systems, the MFR2S45B/PSV ensures reliable operation, enhanced safety, and optimal load control in demanding environments.