Westinghouse | 504C612G28 | Circuit Breaker | 400A | 600V | Bolt-On

Westinghouse 504C612G28 Circuit Breaker is a high-capacity, bolt-on protection device engineered for demanding electrical environments. With a 400 A rating and a 600 V maximum, this unit is purpose-built for maintenance, retrofit, and replacement projects where exact specifications are essential.

Designed for straightforward, secure installation, the bolt-on design delivers a reliable, vibration-resistant connection that minimizes downtime during panel upgrades and replacements. This isn’t a guessing game—the 504C612G28 is purpose-matched for systems that require this specific reference, helping you avoid compatibility pitfalls and service interruptions.

Key specifications

• Amperage: 400 A
• Voltage: 600 V
• Mounting: Bolt-On
• Part reference: 504C612G28

What makes this breaker stand out

• —useful when your panels specify the 504C612G28 part number to ensure correct fit and protection characteristics.
• —bolt-on mounting streamlines swaps in compatible Westinghouse panels, reducing field labor and panel downtime.
• —handles substantial current in commercial and industrial feeders while maintaining clear trip goals within its 600 V rating.
• —the part number provides a definitive compatibility cue, helping procurement avoid mismatched components.

Ideal use cases

• Industrial facilities performing panel upgrades or capacity expansions that require a 400 A, 600 V bolt-on breaker.
• Commercial buildings undergoing maintenance or retrofits where matching Westinghouse specifications are specified by the panel manufacturer.
• Replacement of aging protection devices in systems designed around the 504C612G28 footprint and electrical characteristics.

Fit, compatibility, and practical tips

• Always confirm the exact panel compatibility by cross-referencing the panel labeling with the 504C612G28 part number. This is the most reliable reference for proper fit.
• Verify the panel's rating and bus configuration to ensure the bolt-on mounting aligns with the existing mounting pattern and electrical clearances.
• Before installation, de-energize the panel and follow site safety procedures. Use torque specifications appropriate for the bolt-on lugs to secure a solid connection.
• Document the replacement with the part number and panel model in your maintenance log to streamline future service or expansions.

For professionals upgrading or maintaining large electrical systems, the Westinghouse 504C612G28 circuit breaker delivers a precise, dependable solution that aligns with established specs, minimizes downtime, and simplifies procurement through its clear part-number reference. When timing and accuracy matter in protection upgrades, this bolt-on breaker offers a practical, well-matched choice for your high-demand applications.