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Siemens MBKQR1125A - 125A 2-Pole Bolt-On Breaker (10kAIC)

Siemens
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Siemens MBKQR1125A Circuit Breaker is a 2-pole, 125A bolt-on breaker designed for overcurrent protection in 1-phase, 240VAC panelboard systems. It delivers a 10kAIC interrupting rating at 240VAC and is constructed with a compact footprint measuring 10.63 x 6.693 x 5.906 inches and weighing 5.886 lb. This unit features a thermal-magnetic trip mechanism and is engineered for use with Revised P1 Panelboards, meeting UL and NEC standards for industrial and commercial power distribution. Typical applications include branch circuit protection in lighting, appliance, and motor control panels where reliable, space-efficient overcurrent protection is required.

Key Features & Specifications
  • Type: MBK Bolt-On Circuit Breaker, Thermal-Magnetic Trip
  • Voltage Rating: 240VAC
  • Current Rating: 125A
  • Dimensions: 10.63 x 6.693 x 5.906 inch
  • Standards: UL Listed, CSA Certified
  • Applications: Branch circuit protection in Revised P1 Panelboards for commercial/industrial power distribution
  • Switch Type: Bolt-On
  • Configuration: 2-Pole, 1-Phase
  • Coil Voltage Maximum: N/A
  • Temp Rating: 40°C Ambient
  • Shipping Dimensions: 10.63 x 6.693 x 5.906 inch
  • Phase: 1
  • Voltage: 240V
  • Amperage: 125A
  • AIC rating: 10kAIC at 240VAC
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Overcurrent
  • Functions: Circuit Breaker
  • Frame Size: MBK
  • Trip Type: Thermal-Magnetic
  • Panel Type: Revised P1 Panelboards
  • Breaker Type: Bolt-On
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Copper/Steel
  • Panel Style: Revised P1
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: 75°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Bolt-On
  • Hz: 60Hz
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: Open
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 125A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 60Hz
  • Phase Connection: 1-Phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Revised P1 Panelboards
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: MBK
  • Current Rating: 125A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 804766155574
  • GTIN: 00804766155574