Square D | MAL36300 | Circuit Breaker | 3-Pole

Meet the Square D MAL36300 3-Pole Circuit Breaker — a purpose-built solution for maintenance, retrofit, or replacement projects that require a precise 3-pole configuration.

This MAL36300 is tailored for 3-phase electrical systems, with the part number serving as the most reliable reference for compatibility. Before ordering, confirm that the fit and ratings align with your panel’s nameplate and catalog requirements to ensure a seamless replacement.

• Poles: 3-Pole
• Ideal applications: maintenance, retrofit, and replacement in 3-phase setups
• Best compatibility reference: Part number MAL36300

Why a 3-Pole design matters

A 3-pole circuit breaker protects all three live conductors in a three-phase circuit, delivering coordinated shutdown during overcurrent events. For commercial and industrial equipment powered by 3-phase service, this ensures balanced protection across phases, enhanced safety, and quicker recovery after faults.

Use cases that benefit from MAL36300

• Upgrading older panels to restore full 3-phase protection and reliability
• Retrofits where new equipment requires a matching 3-pole breaker
• Reliable replacement that preserves the original system’s electrical characteristics

Tips for a smooth installation

To minimize downtime, verify that MAL36300 matches your panel’s catalog number and nameplate ratings. If your system uses a 3-phase service with the same amperage and interrupting capability as the original part, this 3-Pole breaker is designed to slot in as a straightforward replacement. Ensure the enclosure and bus configuration align with Square D standards for a secure, compliant connection.

Trusted reliability for continued service

With Square D’s longstanding engineering foundation, the MAL36300 offers dependable performance and predictable trip behavior, supporting consistent operation in commercial environments, data centers, and light industrial settings where uninterrupted 3-phase protection is essential.