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Square D QO245GFI - 2-Pole 45A GFCI Breaker 120/240VAC

Square D
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Square D QO245GFI is a 2-pole molded case circuit breaker designed for ground fault protection in residential and commercial load centers. It operates at 120/240VAC with a 45A current rating and a 10kA interrupting capacity at 120/240VAC, utilizing a thermal-magnetic trip mechanism for long time and instantaneous protection. The unit measures 4.1 in (105 mm) x 1.5 in (38 mm) x 2.9 in (74 mm) and weighs 1.031 lb, featuring a QO frame compatible with QO panel boards. It is UL and CSA certified, compliant with RoHS standards, and rated for operation in temperatures from -13°F to 158°F (-25°C to 70°C). This breaker is commonly used in single-phase applications requiring ground fault circuit interruption for branch circuit protection.

Key Features & Specifications
  • Type: QO Molded Case Circuit Breaker with Ground Fault Protection
  • Voltage Rating: 120/240VAC
  • Current Rating: 45A
  • Dimensions: 4.1 in (105 mm) x 1.5 in (38 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Standards: RoHS
  • Applications: Residential and commercial load centers requiring ground fault protection
  • Switch Type: Toggle
  • Configuration: 2-Pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240VAC
  • Amperage: 45A
  • AIC rating: 10kA at 120/240VAC
  • Connection: Plug-on
  • 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
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: QO
  • 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: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • 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: 45A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Plug-on
  • Frequency Rating: 60 Hz
  • Phase Connection: Single-phase
  • Standards: RoHS
  • Compatible Frames: QO
  • Installation Type: Plug-on
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QO
  • Current Rating: 45A
  • 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: 70°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78590150906
  • GTIN: 00785901509066