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

ABB 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 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

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