Square D | MAL26500 | Circuit Breaker | 500A | 2-Pole | 600V

When your electrical distribution system demands high-capacity overcurrent protection, the Square D MAL26500 circuit breaker delivers dependable performance for demanding commercial and industrial environments. This 500A, 2-pole device is rated for 600V, making it suitable for main feeders and critical branch circuits in well-equipped panels.

Key specs at a glance

• Amperage: 500 A
• Poles: 2-pole
• Voltage rating: 600 V
• Part number: MAL26500

What sets MAL26500 apart

Unlike generic breakers, this model is designed for compatibility with Square D panels and older installations that require the MAL26500 designation. It provides robust short-circuit protection and reliable coordination with downstream devices, helping minimize nuisance trips and repair time during maintenance cycles.

Ideal use cases

• Retrofits in existing Square D panels where 500A two-pole protection is needed
• Maintenance replacements to restore original performance and safety margins
• Service entrance and large feeder circuits that require steady, high-capacity protection
• Spare part for critical inventory in industrial facilities and electrical contractors

Why choose this model for your project

Choosing MAL26500 aligns with your panel's original specifications, ensuring the device fits the bus assembly and mounting footprint, reducing surprises during installation. The 600V rating supports typical utility service environments, while the 2-pole design provides synchronized protection across both hot legs.

Important compatibility and ordering notes

Compatibility reminder: Confirm fit and ratings before ordering. The part number MAL26500 is the best reference for compatibility with your Square D panel and upstream systems.

Practical tips for installation and long-term performance

• Before ordering, pull the panel's documentation or labeling to verify the exact series and bus compatibility; use MAL26500 as the primary cross-reference.
• Inspect the breaker mounting hardware and spindle alignment to ensure a clean, secure connection in your panelboard.
• Document the change in your maintenance log and schedule periodic checks for thermal performance and trip history to catch emerging issues early.

In practice, this MAL26500 breaker helps facility teams maintain uptime by delivering reliable protection when you need to swap in a like-for-like unit during routine service or emergency replacements.