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Square D QO220AS - Molded Case Circuit Breaker 20A 240V

Square D
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Square D QO220AS is a molded case circuit breaker from the QO Series, designed for primary overcurrent protection in residential and light commercial applications. This 2-pole, 20A unit operates at 240V with a 10kA interrupting capacity, utilizing thermal-magnetic protection for both long time and instantaneous trip functions. The plug-in connection and compact dimensions of 3.09 in depth by 4.44 in width, weighing 1.79 lb, facilitate straightforward installation in compatible QO load centers. Manufactured by Schneider Electric in the United States, this single-phase breaker complies with industry standards for reliable circuit protection. Typical applications include branch circuit protection in lighting, appliance, and general-purpose power distribution systems.

Key Features & Specifications
  • Type: Molded Case, QO Series, QO-AS
  • Voltage Rating: 240V
  • Current Rating: 20A
  • Dimensions: Depth 3.09 in (78.49 mm) x Width 4.44 in (112.78 mm)
  • Standards: Industry standard for molded case breakers
  • Applications: Residential and light commercial branch circuit protection
  • Switch Type: Toggle
  • Configuration: 2-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Standard
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 240V
  • Amperage: 20A
  • AIC rating: 10kA@240V
  • Connection: Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: QO
  • Trip Type: Thermal Magnetic
  • Panel Type: QO Load Centers
  • Breaker Type: QO-AS
  • 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: Plug-In
  • Hz: 60 Hz (typical)
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • 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 included
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 20A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: Not specified
  • Certification: UL listed (typical)
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: Plug-In
  • Frequency Rating: 60 Hz
  • Phase Connection: Single Phase
  • Standards: UL 489
  • Compatible Frames: QO
  • Installation Type: Plug-In
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QO
  • 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: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available