ABB HTSS242065 Backup Current-Limiting Fuse, 17.2 kV, 65 A

The ABB HTSS242065 is a back-up current-limiting fuse for distribution transformers, rated 17.2 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: 17.2 kV
• Current rating: 65 A
• Rated maximum voltage: 17.2 kV
• Rated maximum interrupting current: 50.0 kA
• Minimum interrupting current: 360 A
• Minimum melting I²t: 3700 A²s
• Maximum total I²t: 22000 A²s
• Overall diameter: 55.9 mm
• Overall length: 299.7 mm
• Body length: 269.2 mm
• Weight: 1.48 kg

The same rating without the CN suffix is manufactured outside China.