KF underfrequency relay

The type KF relay is a high-speed under-frequency relay which provides rapid sensing of system overload so that excessive load can be shed. It is particularly suitable for relatively isolated areas where a severe overload (i.e., more than 50%) could occur due to a tie-line trip. 

Why ABB?

  • Long production life, ease of application and reliable protection
  • High quality design
  • 12 year warranty
  • Short lead times
  • Consistent on-time delivery
  • 24/7 customer support

Are you looking for support or purchase information?

Loading documents

Related offering

Select region / language