Westinghouse | 1773500 | Circuit Breaker | 400A | 2-Pole | 600V | Bolt-On

Meet the Westinghouse 1773500 Circuit Breaker—a bolt-on, 2-pole protective device designed for clean, reliable circuit protection in retrofit, maintenance, and replacement projects. With a 400A rating and a maximum system voltage of 600V, this breaker is built to handle the demands of commercial and industrial electrical systems while keeping service interruptions to a minimum.

• Configuration: 2-Pole design for balanced, simultaneous protection of paired conductors.
• Electrical rating: 400A, 600V maximum system voltage.
• Mounting: Bolt-On mounting for straightforward installation in compatible panels.
• Identification: Part number 1773500 ensures the right fit when cross-checking panels and catalogs.
• Compatibility focus: Use the part number as the best reference; confirm fit and ratings before ordering.

Designed for use in maintenance, retrofit, and replacement scenarios where exact specs are required, the Westinghouse 1773500 provides dependable overload protection and quick reset capability. Its bolt-on design minimizes field wiring headaches and reduces service downtime when replacing aging breakers in compatible Westinghouse panels.

Why this matters for your project

The 400A, 2-Pole, 600V footprint aligns with many commercial and industrial panels that rely on bolt-on breakers for robust, serviceable protection. By keeping the original part number in hand, you simplify sourcing and ensure you’re selecting a breaker that mirrors the electrical characteristics of your system. When planning a retrofit or replacement, this breaker helps you avoid compatibility surprises and downtime delays.

Use cases and ideal applications

• Retrofit upgrades in service entrances, switchgear, and distribution panels where a 400A, 2-pole bolt-on breaker is required.
• Maintenance refresh for aging panelboards to restore proper protection and trip performance.
• Replacement in existing Westinghouse installations that specify part 1773500 for continuity and spec parity.

Practical tips: Have your system powered down and verify panel ratings before installation. Keep the original documentation or datasheet handy and reference the 1773500 part number to ensure compatibility. If in doubt, match the breaker's amperage, number of poles, voltage rating, and mounting method to your panel's specifications to avoid mismatches during service. This approach minimizes downtime and ensures safe, compliant protection for your electrical distribution.