Square D MGA36350 - 350 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Introducing the Square D MGA36350 — a high-capacity, 3-pole plug-in molded case circuit breaker designed to protect large branch circuits with confidence. Rated at 350A and 600V, this device is built to handle demanding loads while delivering reliable overcurrent and short-circuit protection in panelboards and load centers.

Fast, tool-free installation is at the core of the MGA36350. The plug-in connection streamlines quick installation and easy replacement, reducing panel downtime during upgrades or servicing. Paired with a thermal-magnetic trip unit, it delivers stable, repeatable protection across varying electrical conditions, automatically responding to overloads while sharply interrupting dangerous faults to safeguard downstream equipment and wiring.

What makes this breaker stand out is its thoughtful compatibility and robust construction. It’s designed to fit matching OEM load centers and panelboards, ensuring a seamless, reliable fit in existing installations. With three poles, it is well-suited for three-phase systems common in commercial and light industrial environments, as well as larger residential applications that require substantial feeder protection.

Key advantages at a glance

• Plug-in mounting for rapid installation and straightforward replacement with minimal panel downtime
• 350A, 600V, 3-pole configuration tailored for high-demand, three-phase circuits
• Thermal-magnetic trip provides dependable overload protection and fast short-circuit interruption
• OEM compatibility ensures a precise, secure fit with matching Square D panelboards and load centers
• Versatile application suitable for residential multi-unit setups, commercial spaces, and light industrial environments

Ideal use scenarios

• Upgrading or extending large feeder circuits in commercial or light-industrial electrical panels
• Replacing aging or failed breakers in Square D panelboards to restore reliable protection
• Installing robust protection for three-phase distribution in new or renovated spaces

Technical snapshot

• Manufacturer: Square D
• Part Number: MGA36350
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 350A
• Voltage Rating: 600V
• Number of Poles: 3
• mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the MGA36350 over other protection options? Its plug-in design minimizes installation time and service interruptions, while the thermal-magnetic trip mechanism delivers precise, repeatable performance that engineers and electricians can rely on in everyday operation. Whether you’re safeguarding a critical commercial panel, outfitting a three-phase motor circuit, or reinforcing a large residential main, this breaker provides the durability, compatibility, and protection you need without compromise.

With the MGA36350 in your panel, you gain a dependable, high-capacity protection solution that pairs strong electrical performance with practical installation benefits. It’s the logical choice for professionals who demand quick service, robust safety margins, and compatibility with Square D panelboards and load centers.