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Square D QO120EM - Molded Case 20A 1-Pole Breaker (120/240VAC)

Square D
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  • Low stock - 5 items left
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Square D QO120EM Circuit Breaker is a molded case circuit breaker designed for overload and short-circuit protection in electrical distribution systems. It is rated for 120/240 VAC at 20 amps, with a 10 kAIC interrupting capacity, and features a 1-pole configuration with a thermal-magnetic trip mechanism. The breaker weighs 1.5 lb and is constructed with a compact, plug-on mounting style for use in QO load centers and panelboards. It complies with UL 489 and CSA standards, ensuring reliable performance in residential and light commercial applications. This breaker is suitable for protecting branch circuits in lighting, appliance, and general-purpose power distribution systems.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, plug-on mounting
  • Voltage Rating: 120/240 VAC
  • Current Rating: 20 A
  • Dimensions: Standard QO breaker size
  • Standards: UL 489, CSA
  • Applications: Residential and light commercial branch circuit protection
  • Switch Type: Toggle
  • Configuration: 1-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C
  • Shipping Dimensions: Standard
  • Phase: 1
  • Voltage: 120/240 VAC
  • Amperage: 20 A
  • AIC rating: 10 kAIC
  • Connection: Plug-on
  • Poles: 1
  • Protection: Overload and short-circuit
  • Functions: Overcurrent protection
  • Frame Size: QO
  • Trip Type: Thermal-magnetic
  • Panel Type: QO load centers
  • Breaker Type: QO
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: QO
  • Bus Type: QO
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C
  • 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 applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • 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 applicable
  • Switch Style: Toggle
  • Wire Size: #14-8 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Screw
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 047569071759
  • GTIN: 00785901025029