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Square D PKSB3 - 3-Pole Circuit Breaker 100A 480V AC

Square D
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Square D PKSB3 is a 3-pole circuit breaker designed for overcurrent protection in load center applications. It is rated for 480V AC with a 100A current capacity and a 65kAIC interrupting rating. The unit measures 1.78 in (45.21 mm) x 4.722 in (119.939 mm) x 2.98 in (75.69 mm) and weighs 1 lb, featuring a bolt-on mounting style with aluminum bus connections. It complies with UL 489 standards for industrial safety and is manufactured in the United States by Schneider Electric. This breaker is suitable for commercial and industrial power distribution systems requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: 3-pole, thermal-magnetic circuit breaker
  • Voltage Rating: 480V AC
  • Current Rating: 100A
  • Dimensions: 1.78 in (45.21 mm) x 4.722 in (119.939 mm) x 2.98 in (75.69 mm) (Height x Width x Depth)
  • Standards: UL 489
  • Applications: Load centers, industrial power distribution
  • Switch Type: Thermal-magnetic
  • Configuration: 3-pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C
  • Shipping Dimensions: 1.78 in x 4.722 in x 2.98 in
  • Phase: 3-phase
  • Voltage: 480V AC
  • Amperage: 100A
  • AIC rating: 65kAIC
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent
  • Functions: Circuit protection
  • Frame Size: PKSB
  • Trip Type: Thermal-magnetic
  • Panel Type: Load center
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Aluminum
  • Panel Style: Industrial
  • Bus Type: Aluminum
  • 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: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-on
  • Hz: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 100A
  • Dist Voltage: 480V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 100A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 100A
  • Amperage Minimum: 100A
  • Nema Rating: Not applicable
  • Switch Style: Not applicable
  • Wire Size: Not applicable
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Bolt-on
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489
  • Compatible Frames: PKSB
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: PKSB
  • Current Rating: 100A
  • 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: 785901482055
  • GTIN: 00785901482055