MP350 - 50 Amp Circuit Breaker

MP350 - 50 Amp Circuit Breaker

The Siemens MP350 50‑Amp Miniature Thermal Magnetic Circuit Breaker offers dependable circuit protection for your home’s electrical system, delivering safety and peace of mind for homeowners and electricians alike. Designed with the demands of modern residential wiring in mind, this breaker helps guard against overloads and short circuits — two of the most common causes of electrical problems. With its clean, compact design and reliable performance, the MP350 is ideal whether you’re outfitting a new load center or replacing an older circuit breaker.

Key Features and Benefits

• Reliable circuit protection: The MP350 protects your electrical system from overloads and short circuits so your home stays safe and powered properly.
• Durable, quality construction: Built to high manufacturing standards, this circuit breaker is made to last — giving you long-term reliability without frequent replacements.
• Three-pole design: Provides comprehensive protection for multiple circuits at once, making it a smart choice for main feeders or multi-circuit applications.
• HACR rated: Meets industry requirements for heating, ventilation, air conditioning, and refrigeration equipment — ensuring compatibility with high-demand home systems.
• Compact and easy to install: Its smaller size means installation is straightforward, whether you’re doing a fresh setup or a breaker swap-out.
• Trusted performance: Widely used by electricians and homeowners because it consistently performs under load, giving you confidence in your home’s electrical protection.

Technical Specifications

• Type: MP‑T miniature thermal magnetic circuit breaker
• Voltage Rating: 240 VAC
• Amperage Rating: 50 Amp
• Interrupt Rating: 10 kA
• Number of Poles: 3
• Operating Temperature: up to 40 °C
• Net Weight: 0.948 lb
• Packaging Dimensions:
  • Length: 2.756 inches
  • Width: 2.756 inches
  • Height: 1.969 inches

Material Compliance and Certifications

• Industry Standards: The MP350 adheres to recognized industry safety standards, including HACR‑rating compliance for heating, air conditioning, and refrigeration systems. Manufactured under strict quality controls, it meets all applicable requirements for residential circuit protection. Its construction ensures it performs reliably and safely when protecting circuits under normal operating conditions.

Where It Works Best

• This breaker shines in residential applications where dependable, safe circuit protection is essential. It works especially well as a main feeder breaker or for load center installations handling multiple circuits. If your home has higher electrical demands — such as multi-circuit HVAC systems, heavy-duty appliances, or a full suite of modern amenities — the MP350 is a particularly smart choice. Whether you’re wiring a new home or upgrading an older panel, this breaker delivers dependable protection when it matters most.