Siemens B2125 Circuit Breaker – 125 Amp, 2 Pole, 120/240V, Bolt-On

B2125

The Siemens B2125 is a high-performance 125 amp, 2-pole bolt-on circuit breaker designed for reliable overcurrent protection in commercial and industrial electrical systems. Built for use in Siemens panelboards, this breaker ensures safe operation by interrupting electrical flow during overloads and short circuits. Engineered with durability and precision, the B2125 features a bolt-on mounting design for secure installation and improved electrical connection. It operates on 120/240V systems, making it ideal for a wide range of applications requiring consistent and dependable circuit protection. Commonly used in commercial facilities, industrial setups, and large residential systems, the Siemens B2125 is a trusted solution for maintaining electrical safety and system integrity. Key Features: * 125 Amp rating for high-capacity circuits * 2-Pole configuration for 120/240V applications * Bolt-on mounting for secure panelboard installation * Designed for Siemens panelboards * Provides protection against overloads and short circuits * Durable construction for long-term reliability

Specifications

• Part Number: B2125
• Manufacturer : Siemens
• Brand : Siemens
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : BL Series
• Type : BL
• Voltage : 240
• Amperage : 125
• Phase : 1
• Poles : 2
• AIC rating : 10kA@240V
• Connection : Bolt-On
• Functions : LI - Long-Time and Instantaneous Trip
• Terminal Connection : Lug
• Frame Size : 125A/BL
• Temp Rating : -13‰ÛÒ158 å¡F (-25‰ÛÒ70 å¡C)
• MCM Size : Min. Wire Size 12 AWG (Al), 14 AWG (Cu) Max. Wire Size 10 AWG
• Breaker Type : Standard
• Protection : Thermal Magnetic

Product Data

• UPC : 783643263666
• GTIN : 00783643263666
• Country of Origin : Mexico
• Dimensions : 2.563 x 2.00 x 3.122 inch
• Weight : 0.639 lb
• Panel Type : Siemens P1 Panelboards
• Standards : CSA Certified, HACR Rated, NOM Certified, UL Listed
• Certification : CSA Certified, HACR Rated, NOM Certified, UL Listed