Westinghouse | LB3300 | Circuit Breaker | 300A | 3-Pole | 600V

The Westinghouse LB3300 circuit breaker delivers dependable overload protection for 600V electrical systems. With a 300 Amp rating and a 3-Pole design, it’s built for three-phase service in maintenance, retrofit, and replacement projects where exact specifications are required. The LB3300 part number is the clearest reference for compatibility with Westinghouse panels and enclosures.

Key specifications

• Amperage: 300 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part number: LB3300
• Ideal use: Maintenance, Retrofit, Replacement

Why this matters for your panel

• Precise compatibility: Rely on the LB3300 part number as the best reference to match your existing installation and protection scheme.
• Triple-phase protection: A 3-Pole design safeguards all three phases, helping to prevent imbalances and downstream faults in commercial or industrial systems.
• 600V readiness: Rated for typical 3-phase distribution environments, making it suitable for a wide range of equipment and panels that require robust overcurrent protection.
• Installation efficiency: Designed for straightforward replacement in compatible Westinghouse panels, supporting faster maintenance windows and reduced downtime.

Who benefits from the LB3300

• Maintenance teams performing panel refurbishments or part replacements in facilities with existing Westinghouse protection schemes.
• Electricians planning retrofit upgrades where a reliable, OEM-referenced component is essential for safety and consistency.
• Facilities managers seeking a long-term, predictable replacement path for 600V, 3-phase distribution systems.

Compatibility note: Confirm fit and ratings before ordering. The part number LB3300 is the best reference to ensure your replacement aligns with your panel’s specifications and protection settings.