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Square D QOB250VH1021 - Molded Case Circuit Breaker 50A 2-Pole

Square D
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The Square D QOB250VH1021 is a 2-pole molded case circuit breaker from the QOB Series by Schneider Electric, designed for overcurrent protection in residential and commercial power distribution. It provides thermal-magnetic protection with long-time and instantaneous trip functions, rated for 50A at 120/240VAC with a 22kA interrupting capacity at 240V. This bolt-on breaker measures 3.1 in (79 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) and weighs 1 lb, featuring pressure plate terminals for wire sizes AWG 8 to AWG 2 (copper/aluminum) and an operating temperature range of -13°F to 158°F (-25°C to 70°C). It is UL Listed and CSA certified, suitable for single-phase applications in panelboards requiring reliable short-circuit and overload protection.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 120/240VAC
  • Current Rating: 50A
  • Dimensions: 3.1 in (79 mm) x 2.2 in (57 mm) x 2.9 in (74 mm) (H x W x D)
  • Standards: UL Listed, CSA
  • Applications: Residential and commercial power distribution
  • Switch Type: Bolt-On
  • Configuration: 2-Pole
  • Coil Voltage Maximum: N/A
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Shipping Dimensions: N/A
  • Phase: 1
  • Voltage: 120/240VAC
  • Amperage: 50A
  • AIC rating: 22kA@240V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip
  • Frame Size: QOB
  • Trip Type: Thermal Magnetic
  • Panel Type: N/A
  • Breaker Type: Molded Case
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • 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: N/A
  • 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: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: AWG 8 to AWG 2, Copper/Aluminum
  • Amperage Maximum: 50A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: AWG 8 to AWG 2, Copper/Aluminum
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Pressure Plate
  • Frequency Rating: N/A
  • Phase Connection: 1-Phase
  • Standards: UL Listed, CSA
  • Compatible Frames: QOB
  • Installation Type: Bolt-On
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: QOB
  • Current Rating: 50A
  • 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: 70°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 785901729051