Westinghouse | KB2150 | Circuit Breaker | 150A | 2-Pole | 600V | Bolt-On

The Westinghouse KB2150 circuit breaker is a rugged, ready-to-install protection device designed to guard electrical circuits in 600V systems. This 2‑pole unit delivers reliable interruption at 150A, making it well-suited for demanding commercial and light industrial panels where space, performance, and quick service matter.

• Amperage: 150A
• Poles: 2-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Compatibility reference: Part number KB2150 is your best reference for matching fittings
• Fit guidance: Confirm fit and ratings before ordering

Why choose the KB2150 for your panel

• Bolt‑on mounting provides secure, field-serviceable installation that minimizes panel downtime during replacements or upgrades.
• Two-pole configuration delivers balanced protection across both conductors in 600V circuits, helping to safeguard equipment and maintain stable operation.
• 600V rating aligns with a wide range of commercial and industrial electrical distributions, making it a practical choice for retrofit projects and new installations alike.
• Clear compatibility reference through the KB2150 part number helps installers verify the correct device quickly, reducing staging errors and return trips.

Ideal use cases

• Maintenance and retrofit projects where exact specs are required to match existing panels or enclosures.
• Replacement of older equipment in systems that rely on bolt-on protection devices with a 150A, 2‑pole, 600V configuration.
• New or upgraded installations in commercial or light industrial environments where robust, bolt-on circuit protection is essential.

Installation and practical tips

Before ordering, verify that the KB2150 matches your panel’s mounting pattern and electrical ratings. When installing, ensure power is fully de‑energized and follow all local electrical codes and manufacturer guidelines. Using the exact part number KB2150 as the compatibility reference minimizes risk and helps ensure a secure, long‑lasting fit in your distribution system.