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Square D QOB120-1044 - Molded Case Circuit Breaker 20A 1-Pole

Square D
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The Square D QOB120-1044 is a 1-pole, bolt-on molded case circuit breaker from the QOB Series, designed to provide overcurrent protection through thermal-magnetic operation. It is rated for 20A at 120/240VAC with a 10kAIC interrupting capacity, and it features long-time and instantaneous trip functions for reliable fault response. This unit weighs 1 lb, accepts AWG 14 to AWG 8 copper or aluminum wire via pressure plate terminals, and operates within a temperature range of -13 to 158°F (-25 to 70°C). It is UL Listed and CSA certified, ensuring compliance with industry standards for safety and performance. Typical industrial applications include branch circuit protection in panelboards, switchboards, and load centers requiring bolt-on mounting.

Key Features & Specifications
  • Type: Molded case, thermal magnetic, bolt-on
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Dimensions: 1 lb weight
  • Standards: UL Listed, CSA
  • Applications: Branch circuit protection in panelboards, switchboards, load centers
  • Switch Type: Circuit breaker
  • Configuration: 1-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: -13-158°F (-25-70°C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240VAC
  • Amperage: 20A
  • AIC rating: 10kAIC at 120/240VAC
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip
  • Frame Size: QOB
  • Trip Type: Thermal magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-On
  • Hz: 50/60 Hz (typical)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: AWG 14 to AWG 8, Copper/Aluminum
  • Amperage Maximum: 20A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: AWG 14 to AWG 8
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Pressure Plate
  • Frequency Rating: 50/60 Hz (typical)
  • Phase Connection: 1-phase
  • Standards: CSA, UL Listed
  • Compatible Frames: QOB
  • Installation Type: Bolt-On
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QOB
  • Current Rating: 20A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 70°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 60648614639
  • GTIN: 03606486146392