Westinghouse | 456D988G05 | Circuit Breaker | 150A | 3-Pole | 600V

Meet the Westinghouse 456D988G05 circuit breaker—a robust, 150A, 3-pole unit designed for reliable protection in three-phase electrical systems. With a 600V rating, this breaker is built to handle the demands of commercial and light industrial applications where heavier loads and multi-phase circuits are common.

• Amperage: 150 A
• Poles: 3-Pole (three-phase protection)
• Voltage: 600V
• Part number: 456D988G05
• Application: Maintenance, retrofit, and replacement where exact specs are required

This model stands out because it’s specifically designed to be a precise fit for compatible Westinghouse panels and systems that rely on a three-phase 600V distribution. The 3-pole configuration provides balanced protection across all three phases, helping to prevent phase-to-phase faults and ensuring the safety of downstream equipment and personnel.

Why choose the 456D988G05 for your setup

• The part number 456D988G05 is your best reference for compatibility, making it easier to source the exact replacement you need.
• Ideal for panelboards and distribution gear that run on 600V three-phase systems.
• A practical choice when upgrading or maintaining existing installations that require Westinghouse specifications.
• Built to withstand regular switching and fault conditions in demanding environments.

Ideal use cases

• Retrofit projects in commercial buildings with three-phase 600V distribution.
• Spare parts inventory for maintenance teams who service Westinghouse-based panelboards and gear.
• Repairs or upgrades to retirement-age or legacy systems that still rely on 3-pole 600V protection.
• New installations in settings where precise Westinghouse compatibility is required for reliability and safety.

Compatibility and installation tips

Before ordering, confirm fit and ratings to ensure seamless integration with your panel. Use the part number 456D988G05 as the primary reference to verify compatibility with your equipment. Check your panel labeling, the system’s voltage class (600V), and the desired three-phase protection level to avoid mismatches. If in doubt, consult your panel documentation or a qualified electrician to verify proper installation orientation and bus configuration.

Practical insights for safer, more reliable operation

• Keep a dedicated stock of replacement breakers with matching specifications to minimize downtime during maintenance.
• Pair this 3-pole unit with compatible accessories only as recommended by Westinghouse to preserve protection performance.
• Document the replacement in your maintenance records, noting the exact part number, amperage, voltage, and date of installation for future reference.

For technicians and facility managers seeking dependable three-phase protection at 600V, the Westinghouse 456D988G05 delivers the right balance of compatibility, performance, and peace of mind. Specify the part number, confirm the ratings, and proceed with confidence for a precise, durable replacement.