ABB HTSS372065CN Backup Current-Limiting Fuse, 38 kV, 65 A

The ABB HTSS372065CN is a back-up current-limiting fuse for distribution transformers, rated 38.0 kV and 65 A. It is applied in series with a properly sized under-oil expulsion fuse (bay-o-net, load-sensing link or weak link): the expulsion fuse clears low-magnitude faults while the current-limiting fuse interrupts high fault currents and limits the let-through energy below the withstand capability of the transformer tank.

• Voltage rating: 38.0 kV
• Current rating: 65 A
• Rated maximum voltage: 38.0 kV
• Rated maximum interrupting current: 50.0 kA
• Minimum interrupting current: 390 A
• Peak arc voltage: 110 kV
• Minimum melting I²t: 2600 A²s
• Maximum total I²t: 12100 A²s
• Overall diameter: 83.5-85 mm
• Overall length: 490-492.8 mm
• Body length: 464-464.8 mm
• Weight: 5.4-5.5 kg

The CN suffix marks units manufactured in China. The same rating is also available without the suffix, manufactured outside China.