MP250 - 50 Amp Circuit Breaker

MP250 - 50 Amp Circuit Breaker

When you’re replacing a breaker in an existing electrical system, the details matter: the catalog number, amperage, voltage, pole configuration, interrupting rating, and breaker design must match the equipment. The Siemens MP250 circuit breaker is a 50-amp, 2-pole, 120/240V AC thermal-magnetic breaker with an MP-T design and 10 kA interrupting rating. For electricians, maintenance teams, property managers, and buyers trying to match an existing MP250 installation, its clearly defined electrical characteristics make identification easier. Rather than relying on appearance alone, match the complete set of specifications to the existing equipment. The MP250 is built to last and designed to provide the circuit protection associated with its specified form, fit, and function.

Key Features and Benefits

• 50A current rating: Designed for circuits and equipment specifically requiring a 50-amp breaker.
• 2-pole configuration: Provides the two-pole arrangement specified for the MP250.
• 120/240V AC rating: Suitable for compatible electrical distribution equipment requiring this voltage configuration.
• Thermal-magnetic circuit protection: The MP250 is part of Siemens’ miniature thermal-magnetic breaker family and provides the protection function associated with this breaker design.
• MP-T design: Helps identify the correct breaker configuration when maintaining compatible legacy electrical equipment.
• 50/60 Hz compatibility: Supports both listed supply frequencies.
• 40°C maximum operating ambient: Manufacturer data specifies a maximum operating ambient temperature of 40°C (104°F).

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number / MFN: MP250
  
• Article Number: US2\:MP250
  
• Product Description: 50A 2-Pole 120/240V 10 kA MP-T Circuit Breaker
  
• Breaker Family: Miniature Thermal-Magnetic Circuit Breaker
  
• Design / Type: MP-T
  
• Current Rating: 50A
  
• Voltage Rating: 120/240V AC
  
• Number of Poles: 2
  
• Interrupting Rating: 10 kA
  
• Supply Frequency: 50/60 Hz
  
• Maximum Operating Ambient Temperature: 40°C (104°F)
  
• Manufacturer-Listed Standard/Rating: HACR Rated
  
• Net Weight: 0.573 lb
  
• UPC: 040892518986
  
• Commodity Code: 8536200020
  
• Export Classification: ECCN EAR99 / AL N
  
• Dangerous Goods Classification: No
  
• Product Group: 5200
  
• Catalog ID: LV10.1
  
• Group Code: P320
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The manufacturer specifically identifies the Siemens MP250 as HACR Rated. The supplied product information does not state that this catalog number is UL Listed or CSA Certified, so do not assume or add those certifications to the product listing without separate documentation.

Where It Works Best

The Siemens MP250 50A 2-pole circuit breaker is best suited to compatible legacy electrical distribution equipment that specifically calls for its MP-T configuration, 50A current rating, 120/240V AC rating, two-pole design, and 10 kA interrupting rating. Siemens places this breaker within its residential miniature thermal-magnetic circuit breaker family used for compatible load center main, feeder, and circuit protection applications.