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Square D QOB120VHDF - Molded Case Circuit Breaker 20A 1-Pole

Square D
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The Square D QOB120VHDF is a single-pole, bolt-on molded case circuit breaker from the QOB Series, designed to provide overcurrent protection for branch circuits in residential and commercial power distribution systems. It is rated for 120/240 VAC at 20 amps with a high interrupting capacity of 22 kA at 120 VAC, ensuring reliable fault clearing in high-fault environments. This compact unit measures 4.8 inches in height, 0.7 inches in width, and 2.9 inches in depth, weighing 0.26 lb, and features a pressure plate terminal connection for secure wiring. The breaker is UL Listed and CSA certified, meeting stringent safety and performance standards for North American electrical installations. It is commonly used in Square D QOB load centers and panelboards for lighting, appliance, and general-purpose circuits in industrial and commercial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Bolt-On Mounting
  • Voltage Rating: 120/240 VAC
  • Current Rating: 20 A
  • Dimensions: 4.8 in (121 mm) x 0.7 in (19 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Standards: CSA, UL Listed
  • Applications: Branch circuit protection in QOB panelboards
  • Switch Type: Toggle
  • Configuration: 1-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240 VAC
  • Amperage: 20 A
  • AIC rating: 22 kA @ 120 VAC
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Overcurrent
  • Functions: Circuit protection
  • Frame Size: QOB
  • Trip Type: Thermal-magnetic
  • Panel Type: QOB load centers
  • 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
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not available
  • CPT: Not available
  • Full Load Amps: 20 A
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 20 A
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Not applicable
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 20 A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: Not specified
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Pressure Plate
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: CSA, UL Listed
  • Compatible Frames: QOB
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QOB
  • Current Rating: 20 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 785901765622