Eaton Bussmann 63FE 63A 690V AC High-Speed Semiconductor Fuse

Description

The Eaton Bussmann 63FE is a high-speed fuse designed for semiconductor protection in industrial electrical systems. Its Class aR operating category provides partial-range protection for compatible semiconductor equipment when correctly coordinated with the rest of the protection system.

The fuse features a cylindrical body and offset bolted-tag terminals for mounting in suitable industrial fuse assemblies.

Technical Specifications

– **Brand:** Eaton Bussmann
– **Model:** 63FE
– **Rated current:** 63A
– **Rated voltage:** 690V AC / 500V DC under IEC specifications
– **UL voltage rating:** 700V AC / 500V DC
– **Utilization category:** Class aR
– **Fuse type:** High-speed British Standard fuse
– **Breaking capacity:** 200kA RMS symmetrical AC; 50kA DC at 500V DC
– **Terminal style:** Offset bolted tags
– **Mounting:** Stud mounting, M6
– **Approximate dimensions:** 76 × 20 × 20mm
– **Standards:** BS 88 Part 4 and IEC 60269-4

Typical Applications

When correctly selected and coordinated, the 63FE may be used in:

– Semiconductor power equipment
– Industrial DC drives
– DC common-bus systems
– Power converters and rectifiers
– Reduced-voltage starter assemblies