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Square D QO220WH - 20A 2-Pole Miniature Circuit Breaker (120/240VAC)

United Fuses
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Square D QO220WH is a two-pole, 20-amp miniature circuit breaker designed for overload and short-circuit protection in residential and commercial load centers. This breaker operates at a voltage rating of 120/240 VAC, with a 10 kAIC interrupting capacity, and features a thermal-magnetic trip mechanism for reliable response to both sustained overloads and high-level faults. The unit has a compact frame size, weighs 5.19 lb, and is constructed with a plug-on mounting style for direct installation into Square D QO panel boards. It complies with UL 489 and CSA standards, ensuring safe operation in branch circuit protection applications. Typical uses include protecting lighting, receptacle, and general-purpose circuits in industrial and commercial electrical distribution systems.

Key Features & Specifications
  • Type: Miniature Circuit Breaker
  • Voltage Rating: 120/240 VAC
  • Current Rating: 20 A
  • Dimensions: Standard QO frame
  • Standards: UL 489, CSA
  • Applications: Branch circuit protection in load centers
  • Switch Type: Thermal-magnetic
  • Configuration: Two-pole
  • Coil Voltage Maximum: N/A
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard QO packaging
  • Phase: Single-phase
  • Voltage: 120/240 VAC
  • Amperage: 20 A
  • AIC rating: 10 kAIC
  • Connection: Plug-on
  • Poles: 2
  • Protection: Overload and short-circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: QO
  • Trip Type: Thermal-magnetic
  • Panel Type: QO load center
  • Breaker Type: Miniature
  • 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: Plug-on
  • Hz: 60 Hz
  • 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: N/A
  • Amperage Maximum: 20 A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: N/A
  • Frequency Rating: 60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA
  • Compatible Frames: QO
  • Installation Type: Plug-on
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: QO
  • Current Rating: 20 A
  • 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
  • Weight: 5.19 lb


Product Identification
  • UPC: N/A
  • GTIN: N/A