Overview
The Westinghouse 477B477 contact kit is a genuine OEM replacement component designed for A200 series magnetic contactors and motor starters. This 1-pole contact assembly is rated for 270A at 600V maximum and is certified for NEMA Size 5 applications. It provides consistent electrical switching performance in industrial motor control systems, reducing downtime and maintenance costs through drop-in compatibility with existing equipment.
Key Features
- NEMA Size 5 rated contacts for high-amperage switching
- 270A maximum continuous current rating at 600V
- 1-pole contact configuration
- Genuine Westinghouse OEM component
- Compatible with A200, A201, A210, A211 series starters
- Reliable arc suppression and contact life performance
Technical Specifications
- Contact Rating: 270A continuous
- Voltage Rating: 600V maximum
- Poles: 1
- NEMA Size: 5
- Series: A200
- Weight: 1.0 lb
- Configuration: 1-Pole Contact Kit
Typical Applications
- Motor starter contact replacement in industrial facilities
- Manufacturing equipment motor control systems
- HVAC and mechanical systems with large motors
- Maintenance and retrofit of A200-series starters
- Industrial automation environments requiring reliable switching
Compatibility & Replacements
Compatible With
- Westinghouse A200 series magnetic contactors
- Westinghouse A201 series magnetic contactors
- Westinghouse A210 series motor starters
- Westinghouse A211 series motor starters
- NEMA Size 5 starter enclosures rated for 600V systems
Replaces / Drop-In Replacement For
- Westinghouse 477B477G05 (full part number with contact geometry suffix)
- OEM A200 series contact kits with equivalent specifications
Works With
- 600V 3-phase industrial power systems
- Westinghouse motor starter assemblies
- AC contactor coil circuits (typical coil voltages 120V, 240V, 480V)
- Standard industrial control circuits and pushbutton stations
