General Electrics MB426 - Circuit Breaker | AmpState

Discover the General Electrics MB426 molded case circuit breaker—a compact, dependable solution engineered for reliable protection of residential, commercial, and light industrial panelboards and loadcenters. The MB426 is built to guard your circuits against overcurrent and short circuits with consistent performance, even as workloads shift throughout the day.

Why the MB426 stands out

• Space-efficient design: A compact molded case form factor that maximizes panel space without sacrificing protection or ease of installation.
• Thermal-magnetic trip unit: Combines temperature-based overload sensing with magnetic fast-trip for immediate response to short circuits, delivering stable, repeatable protection across a range of operating conditions.
• OEM-compatible infrastructure: Carefully engineered to be compatible with matching GE OEM loadcenters and panelboards for a seamless, plug-in replacement experience.
• Versatility across applications: Suitable for residential service panels, light commercial equipment, and modest industrial control setups where dependable protection is crucial.

Technical snapshot

• Manufacturer: General Electrics
• Part Number: MB426
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Replacement in GE panelboards or OEM loadcenters where space is at a premium and precise trip performance matters.
• Residential panel refreshes that require reliable, predictable protection without changing the panel’s architecture.
• Light commercial or small industrial panels needing a compact, durable breaker that delivers consistent protection during peak demand.
• Stocking a genuine MB426 for service teams to ensure quick, compatible replacements during routine maintenance or fault recovery.

Why buy from AmpState

When you choose the MB426 from AmpState, you’re getting an authentic General Electrics part designed for OEM compatibility and long-term reliability. This molded case breaker slides into GE panelboards and loadcenters with confidence, providing dependable protection when it’s most needed. Ideal for electricians, facility managers, and maintenance professionals planning a panel upgrade or replacement, the MB426 helps you maintain system safety, code compliance, and operational continuity.

Practical tip: always verify that the MB426 is paired with a matching GE panelboard to preserve listed protection ratings and warranty considerations. If you’re unsure about compatibility, consult a licensed electrician to ensure correct fit and safe installation.