General Electrics MB512 - 225 A, 2-Pole Plug-In Circuit Breaker | AmpState

The General Electrics MB512 - 225 A, 2-Pole Plug-In Molded Case Circuit Breaker is engineered to shield electrical systems with reliable, rapid protection. Designed for dependable branch circuit overcurrent and short-circuit protection, this 2-pole unit fits seamlessly into panelboards and load centers, delivering peace of mind for both new installs and upgrades.

• Fast plug-in connection for quick installation and easy replacement during maintenance or panel upgrades, reducing downtime and service disruption.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, responding precisely to overloads and short circuits to protect wiring and connected devices.
• OEM-matched compatibility ensures reliable fit and optimal performance when used with matching General Electric load centers and panelboards.
• Versatile deployment suitable for residential, commercial, and light industrial applications, handling demanding branch circuits with confidence.
• 2-pole, 225 A configuration supports essential 2-phase protection for common 240 V circuits, balancing safety with electrical efficiency.

Technical specifications at a glance

• Manufacturer: General Electrics
• Part Number: MB512
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 225 A
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the MB512? electricians, facilities managers, and system designers seeking a robust, plug-in solution for panelboards and load centers that demand quick serviceability without compromising protection. Its molded-case construction and thermal-magnetic trip mechanism provide a dependable line of defense for high‑demand circuits, helping to prevent damage from overloads and unforeseen faults.

Practical scenarios include upgrading aging panels in multifamily residences, outfitting commercial electrical rooms, or providing a reliable replacement in light industrial environments where fast installation and OEM-compatible performance are essential. When you choose the MB512, you’re opting for a proven GE design that prioritizes safety, ease of maintenance, and long-term reliability—delivering clear value in everyday electrical protection.