INGEPAC EF BF is a breaker failure protection suitable for single- and three-pole breakers, featuring synchronism check and auto-reclose functions.

Breaker failure with single-/three-pole tripping
Low-load breaker failure
3x50/51 (67), 50N/51N (67N)
50G/51G
46TOC (67Q), 46IOC (67Q)
46FA open phase
50 CSC 2nd harmonic restraint
27, 59, 59N, 47
81M/m, 81 ROCOF
25 synchronism
79 single-/three-pole auto-reclose
Fault locator
Breaker supervision