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Square D QOU1201200 - Molded Case Circuit Breaker 20A 1-Pole

Square D
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The Square D QOU1201200 is a molded case circuit breaker designed for overcurrent protection in branch circuits. It is rated for 120/240 VAC and carries a current rating of 20 A, with a 10 kAIC interrupting capacity at 240 VAC. This unit features a compact 1-inch wide, plug-on construction with a thermal-magnetic trip mechanism, and it accepts wire sizes from AWG 14 to AWG 2 aluminum or copper. The breaker is UL listed and CSA certified, meeting IEC standards, and is commonly used in Square D QO load centers for residential and light commercial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip, plug-on mounting
  • Voltage Rating: 120/240 VAC
  • Current Rating: 20 A
  • Dimensions: 4.05 in (102.87 mm) x 1.5 in (38.1 mm) x 2.95 in (74.93 mm) (Height x Width x Depth)
  • Standards: IEC - UL listed - CSA
  • Applications: Branch circuit protection in QO load centers for residential and light commercial
  • Switch Type: Toggle
  • Configuration: 1-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240 VAC
  • Amperage: 20 A
  • AIC rating: 10 kAIC @ 240 VAC
  • Connection: Plug-on
  • Poles: 1
  • Protection: Overcurrent
  • Functions: Overload and short-circuit protection
  • Frame Size: QO
  • Trip Type: Thermal-magnetic
  • Panel Type: QO 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: Plug-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not available
  • CPT: Not available
  • Full Load Amps: Not applicable
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not applicable
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Not applicable
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 20 A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: AWG 14...AWG 2 aluminium/copper
  • Certification: IEC - UL listed - CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: QO
  • Installation Type: Plug-on
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QO
  • 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: 785901105039
  • GTIN: 00785901000000