Square D | MHL368001288 | Circuit Breaker | 800A | 3-Pole | 600V

When your electrical system demands robust protection for heavy-duty, three-phase loads, the Square D MHL368001288 circuit breaker stands out as a reliable choice.

Engineered for maintenance, retrofit, and replacement projects, this 800A, 3-pole device is built to fit within compatible Square D panels and MCCB assemblies, keeping your distribution system safe and compliant up to 600V.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V
• Part reference: MHL368001288

Why this model stands out: The MHL368001288 carries the trusted Square D build quality for high-current protection in industrial environments. Its 3-pole configuration protects all three phases, ensuring balanced protection for motors, pumps, and other heavy-load equipment. Designed with compatibility in mind, the part number MHL368001288 is the best reference when verifying fit with your panel or replacement plan.

Who should consider it: Electricians performing panel upgrades, facilities engineers planning a retrofit, or maintenance teams replacing aging breakers in commercial and industrial applications. Ideal for systems where feeders and motors run close to the 800A mark, and where a 600V class device is required.

Use cases and scenarios:

• Upgrading an older 3-phase panel to support higher motor loads without changing the entire protection scheme
• Replacing a worn-out breaker in a heavy-industry feeder line to restore reliable protection
• Installing a spare on-hand to minimize downtime during planned maintenance

Important compatibility notes: Before ordering, confirm that your equipment and panel accept MHL-series breakers and that the ratings align with your system design. The MHL368001288 is identified by its part number, which serves as the key reference for compatibility checks with panel models, bus arrangement, and mounting configuration.

Practical installation and maintenance tips:

• Work with the power off and follow site safety protocols and local electrical codes.
• Verify panel model, bus type, and frame size to ensure proper mounting and electrical fit.
• Store spare breakers in a dry, cool environment to preserve internal mechanisms for quick swaps.
• When replacing, document the exact part number and ensure labeling reflects the new protection point for future maintenance.

With Square D backing, the MHL368001288 delivers predictable, rugged protection for critical loads and long-running equipment. Whether you're retrofitting an aging installation or configuring a fresh industrial feeder, this 800A, 3-pole, 600V circuit breaker is built to deliver reliable performance when it matters most.