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Square D PKSB3BF - Miniature Circuit Breaker 15A 120/240VAC (1-Pole)

Square D
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Square D PKSB3BF is a miniature circuit breaker designed for overcurrent protection in electrical distribution systems. It operates at a voltage rating of 120/240 VAC and a current rating of 15 A, providing reliable interruption of fault currents. The unit measures 1.5 in (38.1 mm) in height, 2.3 in (58.4 mm) in width, and 2.75 in (69.85 mm) in depth, with a weight of 1 lb, and features a compact thermoplastic construction for panelboard installation. It complies with UL 489 and CSA C22.2 standards, ensuring safety and performance in residential and light commercial applications. Typical uses include branch circuit protection in load centers and panelboards.

Key Features & Specifications
  • Type: Miniature Circuit Breaker, thermoplastic construction, thermal-magnetic trip
  • Voltage Rating: 120/240 VAC
  • Current Rating: 15 A
  • Dimensions: 1.5 in (38.1 mm) x 2.3 in (58.4 mm) x 2.75 in (69.85 mm) (Height x Width x Depth)
  • Standards: UL 489, CSA C22.2
  • Applications: Branch circuit protection in residential and light commercial panelboards
  • Switch Type: Toggle
  • Configuration: 1-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 1.5 in x 2.3 in x 2.75 in
  • Phase: Single-phase
  • Voltage: 120/240 VAC
  • Amperage: 15 A
  • AIC rating: 10 kA at 120/240 VAC
  • Connection: Line and load terminals
  • Poles: 1
  • Protection: Overcurrent (overload and short-circuit)
  • Functions: Thermal-magnetic trip
  • Frame Size: 1-inch per pole
  • Trip Type: Thermal-magnetic
  • Panel Type: QO or Homeline compatible
  • Breaker Type: Miniature circuit breaker
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper alloy contacts
  • Panel Style: Load center
  • Bus Type: Plug-on
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: 1 in
  • 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: 14 AWG to 8 AWG
  • Amperage Maximum: 15 A
  • Amperage Minimum: 15 A
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 8 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Screw terminals
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: QO and Homeline load centers
  • Installation Type: Plug-on
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 1-inch per pole
  • Current Rating: 15 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: 78590151716
  • GTIN: 00785901517160