Westinghouse | LB3350 | Circuit Breaker | 350A | 3-Pole | 600V

Westinghouse LB3350 Circuit Breaker — a robust 350A, 3-pole, 600V protection device built for demanding electrical environments. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this LB3350 unit slips into compatible panels with minimal downtime and predictable performance.

Direct compatibility, clear reference

Best reference: The part number LB3350 is your most reliable guide for compatibility. Before ordering, confirm fit and ratings on your panel label to avoid mismatches in current rating or pole configuration.

Key specifications

• Amperage: 350 A
• Poles: 3-Pole
• Voltage rating: 600 V

Why this Westinghouse breaker stands out

• Proven performance in high-current, three-phase distribution systems commonly found in commercial and industrial settings.
• Part of the Westinghouse LB-series family, offering consistent trip behavior and compatibility with legacy equipment in existing installations.
• Clear, unambiguous part identification makes sourcing and maintenance simpler, reducing downtime and procurement guesswork.

Ideal use cases

• Maintenance replacements in 600V three-phase electrical panels where the LB3350 matches the original device.
• Retrofit projects to bring aging switchgear up to current reliability standards without changing the panel.
• New installations that require a direct, compatible 350A, 3-pole, 600V breaker with a proven track record.

Practical tips for a smooth replacement

• Always verify panel labeling and ensure the panel accepts a 350 A, 3-Pole, 600V device.
• Use the LB3350 part number as the primary compatibility reference when purchasing or requesting quotes.
• Prepare safety procedures and have the system de-energized during replacement to protect personnel and equipment.

What you gain

• Reliable circuit protection for high-current circuits, helping minimize downtime from unexpected trips.
• Streamlined maintenance and procurement with a clearly identified, widely compatible part.
• Confidence in long-term compatibility with existing Westinghouse equipment and panel designs.