Square D | LHP36300MB | Circuit Breaker | 300A | 3-Pole | 600V | 35kA | Bolt-On

The Square D LHP36300MB circuit breaker is a high-capacity protection device engineered for demanding 600V systems. With a 300A continuous rating, a 3-pole configuration, and a 35kA interrupting capacity, this bolt-on breaker is built to meet the rigorous needs of industrial and commercial power applications. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, it delivers reliable protection and easy field serviceability.

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V
• Interrupting rating: 35kA
• Mounting: Bolt-On

Why this bolt-on, three-pole design stands out

• Provides rigid, reliable contact with compatible panels, reducing the risk of loose connections and ensuring consistent protection over time.
• 35kA interrupting capacity delivers solid defense against industrial fault currents, helping safeguard equipment and personnel.
• The 600V rating makes it suitable for a wide range of commercial and light industrial applications where stable, reliable protection is essential.
• The LHP36300MB part number is the clearest way to confirm fit when sourcing replacements or performing retrofits.

Ideal use cases

• Maintenance projects where an exact 300A, 3-pole, bolt-on breaker is required to match existing panels.
• Retrofits and upgrades in facilities upgrading protection while preserving panel layouts and bus configurations.
• Replacement of aging or failed breakers in commercial or light industrial electrical distributions that operate at 600V.

Practical guidance for procurement and installation

• Always confirm fit and ratings before ordering. The LHP36300MB part number is your best reference for compatibility with your panel and bus configuration.
• Plan for secure mounting and clear accessibility during installation to ensure easy maintenance in the future.
• Keep this bolt-on unit on hand for planned retrofit cycles or scheduled replacements to minimize downtime.

With its combination of robust protection, secure mounting, and precise specifications, the Square D LHP36300MB 300A 3-Pole 600V bolt-on circuit breaker is a dependable choice for safeguarding high-demand electrical systems and simplifying retrofit projects.