ABB CEF-OT Indoor Current Limiting Fuses - IEC Standard 12kV-24kV

ABB Power ProductsABB MV HV Medium - High Voltage Fuses

Indoor Fuses for MV Medium Voltage Cable Networks

ABB CEF-OT Indoor Current Limiting Fuses - IEC Standard 12kV-24kV 

 

ABB CEF-OT medium voltage fuse-links protect transformers, capacitors banks, cable feeders and overhead lines against short-circuit consequences. ABB CEF-OT fuse links were designed specially to be used in combination with ABB TPC bushings and ABB TPC II switch-disconnectors, which are used in ABB’s TPC medium voltage distribution transformers. The design of ABB Medium Voltage CET-OT fuse-links provides resistance to high temperatures and vacuum during transformers manufacturing process.

ABB CEF-OT Indoor Current Limiting Fuse

ABB CEF-OT Indoor Current Limiting Fuse Features

  • Low minimum rated breaking capacity
  • Low power losses
  • Low electric arc voltage 
  • High breaking capacity 
  • High short-circuit current limiting capacity 
  • Adopted for using in combination with switch disconnector (equipped with a striker) 
  • Can work inside a transformer tank, immersed in transformer oil 
  • Welded current path
  • Type tested according to IEC 60282-1 
  • Dimensions of fuse-links are in accordance with IEC 60282-1:2005, Type II

 

ABB CEF-OT Indoor Current Limiting Fuse Ratings

Rated fuse voltage 12kV - 24kV

Rated fuse current 20Amps - 31.5Amps

ABB CEF-OT Indoor Current Limiting Fuse Technical Data
Fuse-link Type Order No. Rated Voltage Rated Current

Min. Breaking Current 

Max. Tested Short-circuit Current  Rated Fuse-link Resist-ance at 20°C  Rated Power Losses In Air Striker Force At A Distance Of 4mm From End Cap

I3

I1

 

ABB CEF-OT TPC1 

 

1YMB531-041M0004 

 

12kV/ 24kV

20A 80A

 

31.5kA (at 12 kV)

16kA (at 24 kV) 

115.5 mΩ  70W 130N

 

ABB CEF-OT TPC1 

 

1YMB531-041M0006

12kV/ 24kV 31.5A 80A

 

31.5kA (at 12 kV) 

16kA (at 24 kV) 

 

69.2 mΩ  105W 130N

 

ABB CEF-OT TPC2 

 

1YMB531-041M0014 

12kV/ 24kV 20A 80A

 

31.5kA (at 12 kV) 

16kA (at 24 kV) 

115.5 mΩ  70W 130N

 

ABB CEF-OT TPC2 

1YMB531-041M0016

12kV/ 24kV 31.5A 80A

 

31.5kA (at 12 kV) 

16kA (at 24 kV) 

69.2 mΩ  105W 130N




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ABB CEF-OT Indoor Current Limiting Fuses -  IEC Standard 12kV-24kV