Westinghouse GD3040 40A 3P 480V Circuit Breaker | AmpState

Meet the Westinghouse GD3040 40A 3P 480V Circuit Breaker — a purpose-built, OEM-equivalent protection device designed for panelboards, load centers, and comprehensive electrical distribution systems. When you’re in replacement mode or building a spare kit, GD3040 keeps your BOM aligned with the original part number for a guaranteed, drop-in swap with minimal downtime.

Core specifications

• Manufacturer: Westinghouse
• Part Number: GD3040
• Product Type: Circuit Breaker
• Amperage: 40 A
• Poles: 3
• Voltage: 480V

Why this GD3040 stands out

• Exact BOM alignment: Using the GD3040 preserves the original design intent and avoids mismatches that can complicate panel reconfigurations.
• OEM-compatible form and fit: Designed to integrate smoothly with existing Westinghouse installations and compatible panelboards/load centers.
• Reliable replacement option: Ideal for service teams stocking spares to cut downtime during maintenance or unexpected failures.
• Supportive availability: AmpState offers this part and can assist in confirming compatibility, ensuring you’re ordering the correct device the first time.

Ideal use cases

• Replacing failed or outdated breakers in commercial or industrial panelboards and distribution boards
• Stocking spares for ongoing maintenance programs in manufacturing facilities, data centers, or large office complexes
• Upgrading or renewing electrical distribution with a trusted Westinghouse component that matches the original hardware

If you’re aiming for a seamless, plug-and-play upgrade that preserves the original electrical plan, the Westinghouse GD3040 40A 3P 480V Circuit Breaker is engineered for performance and longevity. Available now from AmpState—with support to verify part fit and ensure you’re choosing the exact successor to your existing equipment.