The MFR 11 is an industrial-grade protective relay that offers voltage and frequency protective features in a single package. Using advanced true RMS measuring the MFR 11 offers a high degree of measuring accuracy regardless of harmonics, transients, or disturbing pulses. The MFR 11 model is suitable for generator or mains protection. Typical applications are generators and switchgear equipment that require independent protection architecture. Different packages offer additional functionality. 

Features include:

	True RMS sensing
	Sync-check
	Programmable relay outputs
	Discrete inputs for enabling or remote acknowledgment
	PC and front panel configurable
	Microprocessor technology for accurate, repeatable, and reliable operation
	Programmable threshold setpoints with individual time delays
	Voltage and frequency supervision ààStandard mains decoupling functions