Overview
The Westinghouse 503B027H05 is a stationary main contact spring (outer) engineered for use in DS and DSL series motor starters and contactors. This component is critical for maintaining reliable electrical contact between stationary and moving contacts during motor control operations. The Westinghouse 503B027H05 meets OEM specifications and serves as a direct replacement for worn or damaged contact springs in existing control systems.
Key Features
- Stationary main contact spring (outer) configuration
- Designed for Westinghouse DS and DSL motor starter series
- OEM-specified replacement component
- Ensures consistent electrical contact pressure and performance
- New condition, surplus stock
Technical Specifications
- Part Number: 503B027H05
- Manufacturer: Westinghouse Electric Corp
- Component Type: Stationary Main Contact Spring (Outer)
- Application: DS and DSL Series Motor Starters
- Condition: New
- Configuration: Outer Contact Spring
Typical Applications
- Replacement in DS series Westinghouse motor starters
- Replacement in DSL series Westinghouse motor starters
- Industrial motor control and automation systems
- Contactor and starter maintenance and repair
- Equipment upgrades and refurbishment projects
Compatibility & Replacements
Compatible With
- Westinghouse DS series motor starters
- Westinghouse DSL series motor starters
- Westinghouse contactors using stationary contact assemblies
Replaces / Drop-In Replacement For
- Worn or damaged contact springs in DS series starters
- Worn or damaged contact springs in DSL series starters
- OEM Westinghouse part 503B027H05 (direct replacement)
Works With
- Westinghouse motor control center components
- Industrial automation and control systems
- Standard electrical contactors and starter assemblies










