Overview
The Westinghouse 503B601H04 is a breaker opening spring assembly designed specifically for Westinghouse DS-206 low-voltage power circuit breakers. This replacement part is rated for 600 VAC at 800 amps and is a critical component for ensuring proper breaker mechanism function. Industrial facilities, electrical maintenance contractors, and switchgear service centers rely on genuine Westinghouse replacement springs to maintain breaker performance and safety compliance.
Key Features
- OEM replacement part for Westinghouse DS-206 electrically operated power circuit breakers
- 600 VAC voltage class rating
- 800 amp ampacity
- Maintains original breaker opening and closing action
- Direct drop-in replacement for worn or damaged springs
- New in box condition for reliable performance
Technical Specifications
- Voltage Class: 600 VAC
- Ampacity Rating: 800 Amps
- Breaker Model: DS-206 (both Electrically Operated variants)
- Part Type: Breaker Opening Spring Assembly
- Condition: New in Box
- Westinghouse Part Number: 503B601H04
- Alternate Designation: 21-1000-039
Typical Applications
- Replacement and renewal for Westinghouse DS-206 power circuit breakers
- Switchgear service and maintenance operations
- Industrial electrical system repairs and upgrades
- Low-voltage distribution panel maintenance
- Obsolete breaker restoration and recommissioning
Compatibility & Replacements
Compatible With
- Westinghouse DS-206 power circuit breakers (Electrically Operated)
- Low-voltage switchgear applications rated 600 VAC
- Standard industrial electrical distribution systems
Replaces / Drop-In Replacement For
- Original Westinghouse DS-206 breaker opening springs
- OEM Westinghouse part 503B601H04
- Worn or damaged breaker opening spring assemblies in DS-206 units
Works With
- Westinghouse low-voltage power circuit breaker platforms
- Standard 600 VAC industrial electrical systems
- Electrically operated breaker mechanisms
