Overview
The Westinghouse 151D933G01 fuse is a Class 12 (CLS-12) high-voltage motor circuit current limiting fuse designed for medium-voltage switchgear and industrial protection applications. Rated at 200 amperes (9R designation) and 5.08KV AC maximum, this fuse provides dependable overcurrent and short-circuit protection in utility, industrial, and commercial electrical systems operating at 50/60 Hz.
Key Features
- CLS-12 type motor circuit current limiting fuse
- 200A (9R) current rating with 5.08KV AC maximum voltage
- 50/60 Hz frequency rated for North American and international systems
- High interrupting capacity suitable for medium-voltage protection
- Available in Bolt-In and Clip-Lock mounting configurations
- Manufactured by Westinghouse (Eaton/Cutler Hammer division)
Technical Specifications
Electrical Ratings: 200A at 9R designation; 5.08KV AC maximum; 50/60 Hz operation
Fuse Type: CLS-12 Motor Circuit Current Limiting
Mounting Style: Bolt-In or Clip-Lock (verify mounting type at order)
Interrupting Rating: Typical 50 kA symmetric / 80 kA asymmetric (confirm per application requirements)
Applications: Industrial switchgear, motor control, utility distribution, medium-voltage protection circuits
Typical Applications
- Medium-voltage motor starter protection
- Industrial switchgear overcurrent protection
- Utility feeder and distribution circuit defense
- Magne-Blast and similar medium-voltage switchgear systems
- High-voltage industrial control panels rated 5kV–6kV
Compatibility & Replacements
Compatible With
- Westinghouse Magne-Blast switchgear assemblies
- Cutler Hammer medium-voltage switchgear
- Standard CLS-12 fuse holders and clips
- Medium-voltage motor starters and contactors (5kV class)
- Industrial electrical distribution panels
Replaces / Drop-In Replacement For
- Westinghouse 151D933G01 (exact catalog number match)
- Functionally similar Eaton CLS-12 200A fuses with same ratings
- Cutler Hammer 151D933G01 (identical under Eaton branding)
Works With
- Westinghouse and Cutler Hammer medium-voltage switchgear
- IEC-rated fuse clips and carriers for CLS-12 style
- ANSI/IEEE standard medium-voltage protection circuits
- Industrial control systems and power distribution equipment rated 5.08KV
