Westinghouse LG3500 500A 3P 600V Circuit Breaker | AmpState

Meet the Westinghouse LG3500 — a rugged 3-pole circuit breaker engineered for panelboards, load centers, and entire electrical distribution systems. With a 500 A rating and a 600 V maximum, this unit delivers dependable fault protection for demanding commercial and industrial environments, while keeping installation straightforward for electricians and panel builders alike. Available from AmpState, it’s a reliable choice for maintenance teams needing a direct part-number match and fast replenishment of spare inventory.

Why choose the LG3500 for your panels

• Direct part-number match: LG3500 ensures a precise fit in Westinghouse panelboards, reducing field modification time and error risk.
• Three-pole design: Perfect for 3-phase circuits, enabling simultaneous disconnection of all conductors for safer maintenance and quick isolation.
• 500 A protection: Suitable as main or feeder protection for high-load panels, handling substantial fault currents without tripping prematurely.
• 600 V rating: Compatible with common commercial and industrial distribution networks while maintaining robust insulation and performance.
• Reliable sourcing: AmpState provides supply and stocking options to support maintenance schedules and panel builds.

Key specifications

• Manufacturer: Westinghouse
• Part Number: LG3500
• Product Type: Circuit Breaker
• Amperage: 500 A
• Poles: 3
• Voltage: 600 V

Ideal for

• Maintenance teams and service electricians managing critical panel protection in commercial facilities
• Panel builders sourcing exact-labelling replacements for Westinghouse installations
• Facilities managers stocking spare inventory to minimize downtime from breaker failures

Use cases and practical tips

Use LG3500 as the primary protection device in three-phase distribution panels or as a robust feeder breaker for large circuits. When replacing, verify that your panelboard accepts a 3-pole unit and that the bus bars and mounting fit the LG3500’s form factor. Because this is a direct-part-number match for Westinghouse systems, you’ll typically experience a smoother replacement process and fewer compatibility concerns than with generic substitutes. If you’re unsure about fit, message us and we’ll help confirm compatibility.

Availability: AmpState offers the Westinghouse LG3500 500A 3P 600V Circuit Breaker for immediate sourcing. Add one to your cart or contact our team for fast confirmation of fit and recommended stocking levels for your facility.