Square D MGA36500 - 500 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Square D MGA36500 — a robust 500 A, 600 V, 3‑pole plug-in molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to handle demanding electrical environments, this breaker delivers fast installation, precise protection, and long-term reliability.

Why this breaker stands out

• Fast plug-in connection for quick installation and effortless replacement during maintenance or panel upgrades, minimizing downtime.
• Thermal-magnetic trip unit provides stable, repeatable protection against both overloads and short circuits, helping to prevent nuisance trips and equipment damage.
• Three-pole design delivers balanced protection for three-phase circuits, ideal for coordinated protection in commercial and light industrial systems.
• OEM compatibility is designed to work seamlessly with matching Square D load centers and panelboards, ensuring reliable integration and predictable performance.
• Versatile application suitable for residential settings as well as commercial and light industrial environments where heavy-duty protection is required.

Who should consider the MGA36500?

Project managers, electrical contractors, and facility engineers responsible for critical distribution protection will appreciate the combination of high current rating, solid short-circuit defense, and plug-in simplicity. It’s an excellent choice for main or branch protection in panelboards and load centers that demand a rugged, easily replaceable solution for 3-phase systems up to 600 V.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: MGA36500
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 500 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

In any installation where reliability and rapid service are crucial, the Square D MGA36500 delivers proven protection for 3‑phase loads. Its combination of a fast plug-in connection, a thermal-magnetic trip system, and OEM-ready compatibility makes it a practical, long-term safeguard for electrical systems in homes, businesses, and light industrial facilities.