Siemens MBK150 - 50 A, 240 V, 1-Pole Plug-In Circuit Breaker | AmpState

Meet the Siemens MBK150 — a robust 50 A, 240 V, 1‑pole plug‑in molded case circuit breaker from AmpState. Built to deliver dependable branch circuit protection in panelboards and load centers, it combines fast installation with precise, repeatable protection for a wide range of electrical profiles.

• Fast, plug‑in installation: Quick connections mean less downtime during upgrades, maintenance, or panel swaps, keeping projects on schedule.
• Thermal‑magnetic trip unit: Dual sensing provides stable protection for both sustained overloads and sudden short circuits, reducing nuisance trips while safeguarding connected equipment.
• 1‑pole, 50 A at 240 V: Ideal for protecting a single branch circuit with solid amperage capacity, suitable for feeder or distribution roles in diverse settings.
• OEM‑level compatibility: Designed to work with matching Siemens OEM load centers and panelboards, ensuring a secure fit and reliable operation within established systems.

Where it shines

• Residential applications: Protect kitchen circuits, HVAC feeders, lighting runs, or subpanel connections with a compact, dependable module.
• Commercial environments: Ideal for lighting, receptacle banks, and dedicated equipment circuits where quick replacement and predictable trips minimize downtime during service windows.
• Light industrial use: Safeguard small machinery feeds or process lines that require robust protection without complicating installation.

Why this matters in real life

• Reliable overcurrent and short‑circuit protection reduces risk to downstream devices and wiring, helping to prevent costly outages.
• The plug‑in design streamlines upgrades and replacements, saving time on site and reducing labor costs.
• Consistent Siemens engineering across your panelboard ecosystem means predictable performance and easier maintenance planning.

Technical snapshot

• Manufacturer: Siemens
• Part Number: MBK150
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 50 A
• Voltage Rating: 240 V
• Number of Poles: 1
• Mounting Style: Plug‑in
• Application: Branch circuit overcurrent and short‑circuit protection