General Electrics MB513 - 225 A, 3-Pole Plug-In Circuit Breaker | AmpState

The General Electrics MB513 is a 225A, 3-pole plug-in molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its fast plug-in connection means quicker installations and easier replacements, reducing downtime in busy electrical rooms.

• Fast plug-in connection enables quick installation and hassle-free replacements in compatible GE panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining thermal overload sensing with instantaneous magnetic trip for short circuits.
• OEM panel compatibility is specifically designed to fit matching General Electrics load centers and panelboards to ensure proper fit, labeling, and trip characteristics.
• Versatile applications suitable for residential, commercial, and light industrial environments where reliable 225A, 3-pole protection is required.

Specification snapshot

• Manufacturer: General Electrics
• Part Number: MB513
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 225 A
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical scenarios

Use the MB513 225A 3-pole plug-in breaker when you need reliable protection for three-phase branch circuits in GE panelboards or compatible OEM panels. It’s an excellent choice for panel upgrades, replacements in aging installations, or new builds requiring solid 3‑pole protection at a 225A rating. The plug-in design minimizes service time during maintenance windows, while the thermal-magnetic protection provides a robust response to both sustained overloads and sudden fault conditions.

Why this MB513 stands out

Unlike generic substitutes, the MB513 is engineered to align with GE’s trip profiles and labeling in compatible load centers, helping maintain proper coordination with upstream devices and ensuring predictable performance. The combination of a fast plug-in connection and a proven thermal-magnetic trip unit translates to reduced downtime, precise protection, and long-term reliability in critical electrical systems.

Whether you’re stocking for a service truck, outfitting a new commercial space, or performing a panel modernization in a light industrial setting, the MB513 from General Electrics offers a precise, manufacturer-aligned solution for 225A, 3-pole circuit protection. Equip your panels with a breaker that understands your system’s needs and delivers consistent protection when it matters most.