IEC current limiting back-up fuse CEF-OT

Distribution transformers protection

Fuse-links type CEF-OT are designed for protection of distribution transformers, they are suitable for installation inside transformer tank.


  • Wide application range for both indoor/outdoor and oil installations
  • Continuous protection and reliable operation guaranteed by robust design and compliance with newest IEC standards
  • Increased life time of protected apparatus isolation due to significant reduction of prospective short circuit currents

Key features

  • Rated voltage 10/24 kV
  • Rated currents: 20 A, 31.5 A
  • Application: indoor and outdoor, immersed in transformer oil
  • Fuse type: Back-up
  • Striker 130 N (medium type)

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