B2125 - 125Amp Circuit Breaker

B2125 - 125Amp Circuit Breaker

When you need dependable protection for higher-capacity electrical systems, the Siemens B2125 BL 125A 2-Pole Circuit Breaker gets the job done. Built for 120/240V applications, this breaker uses a thermal-magnetic trip to quickly respond to overloads and short circuits before they become bigger problems. Its 10kA interrupt rating adds another layer of protection for demanding electrical loads. The bolt-on design makes installation simple and keeps panelboards neat and organized. Whether it’s being used in a residential panel, commercial space, or light industrial setup, the B2125 is a solid choice for protecting HVAC equipment, appliances, lighting circuits, and other essential electrical systems that need steady, reliable performance every day.

Key Features and Benefits

• 2-pole, 125A breaker: for high-demand electrical circuits
• Thermal-magnetic trip: helps protect against overloads and short circuits
• 10kA interrupt rating: for dependable circuit protection
• Bolt-on mounting design: for quick installation
• Compact size: fits neatly into panelboards

Technical Specifications

• Type: BL Molded Case Circuit Breaker
• Poles: 2P
• Voltage Rating: 120/240V AC
• Amperage Rating: 125A
• Interrupt Rating: 10,000A
• Trip Type: Thermal Magnetic
• Dimensions: 3" D x 2" H x 3" W
• UL 489 Listed

Material Compliance and Certifications

• UL Listed: Manufactured to meet industry safety standards for reliable, long-term use.

Where It Works Best

• Residential electrical systems
• Commercial panelboards
• Light industrial applications
• HVAC equipment protection
• Appliance and lighting circuits
• Electrical distribution systems