Function

Fuse monitoring

Fuse monitoring is used to detect, indicate and report faults. The electronic fuse monitoring devices are available in 2 versions.

EFM10 electronic fuse monitoring devices:

  • For use up to 690 V AC

  • Operational voltage < 20 V

  • Display: Ready-to-run

  • Individual fault display per phase

  • 1 CO contact as centralized fault signaling unit

EFM20/25 electronic fuse monitoring and line monitoring devices:

  • EFM20 for use up to 690 V AC, EFM25 for use up to 440 V DC

  • Operational voltage < 13 V (EFM20) < 20 V (EFM25)

  • Test function

  • Closed-circuit principle or open-circuit principle

  • 2 CO contacts as centralized fault signaling unit incl. line monitoring functions with phase failure detection (EFM20), undervoltage/overvoltage detection

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    EFM10 electronic fuse monitoring devices

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    EFM20/25 electronic fuse monitoring device