Square D MAL36450 - 450 A, 3-Pole Circuit Breaker | AmpState

Square D MAL36450 - 450A, 3-Pole Molded-Case Circuit Breaker is built to deliver dependable branch circuit overcurrent and short-circuit protection for panelboards and loadcenters. Its compact molded-case design frees up valuable panel space without compromising protection, making it a practical choice for modern electrical installations in homes, offices, and light industrial settings.

Why this breaker stands out

• Compact molded-case design maximizes panel space, helping you fit more circuits neatly and safely.
• Thermal-magnetic trip unit provides stable, repeatable protection against overloads and instantaneous response to short circuits, reducing the risk of damage and downtime.
• Three-pole configuration supports three-phase systems, ideal for commercial equipment, HVAC, and load feeders.
• 450A rating suitable for high-current branch circuits and main feeders in compatible panels.
• OEM compatibility designed to integrate with matching Square D loadcenters and panelboards for a seamless, reliable install.
• Versatile application suitable for residential, commercial, and light industrial uses—protecting wiring and equipment across a range of environments.

Practical benefits and use cases

Whether you’re upgrading an aging panel, provisioning a new commercial space, or stocking spare parts for service crews, MAL36450 delivers predictable protection you can trust. Its space-efficient footprint helps you optimize panel layouts, while the thermal-magnetic trip unit ensures protective action under both steady overload conditions and sudden fault events. Use it to guard large feeders and critical circuits in three-phase systems, or as a robust replacement where a Square D panel requires a 450A, 3-pole solution.

Specifications at a glance

• Manufacturer: Square D
• Part number: MAL36450
• Type: Thermal-magnetic molded-case circuit breaker
• Amperage rating: 450 A
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for

• Residential, commercial, and light industrial panelboards/loadcenters requiring reliable 450A protection
• Three-phase feeders and large branch circuits in compatible Square D systems
• Upgrades and replacements where space efficiency and OEM compatibility matter

For dependable protection that fits neatly into your panel and delivers consistent performance, the Square D MAL36450 450A 3-Pole Molded-Case Circuit Breaker is a smart, long-term choice. Install it with confidence in compatible panels and rely on its proven thermal-magnetic protection to safeguard electrical systems and downstream equipment.