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Square D FB78 - Circuit Breaker 100A 600V AC

Square D
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Square D FB78 is a molded case circuit breaker designed for overcurrent protection and electrical system isolation in industrial power distribution. It operates at a voltage rating of 600V AC and a current rating of 100A, with a 65kAIC at 480V AC, providing robust fault current interruption. The unit features a three-pole configuration, thermal-magnetic trip type, and a compact frame size, weighing 5.19 lb, with a metal enclosure and bolt-on mounting for secure installation. It complies with UL 489 and NEMA standards, ensuring reliable performance in demanding environments. This breaker is typically applied in motor control centers, panelboards, and switchboards for commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, metal enclosure
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: Compact frame size
  • Standards: UL 489, NEMA
  • Applications: Motor control centers, panelboards, switchboards
  • Switch Type: Circuit breaker
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 65kAIC at 480V AC
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent
  • Functions: Circuit isolation and protection
  • Frame Size: Compact
  • Trip Type: Thermal-magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Metal enclosure
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Bolt-on
  • Hz: 50/60 Hz
  • Coil Material: Not specified
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Metal
  • Relay Style: Not specified
  • Coil Voltage Minimum: Not specified
  • Wire: Not specified
  • Amperage Maximum: 100A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Circuit breaker
  • Wire Size: Not specified
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Not specified
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, NEMA
  • Compatible Frames: Not specified
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not specified
  • Breaker Frame: Compact
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified
  • Weight: 5.19 lb


Product Identification
  • UPC: Not specified
  • GTIN: Not specified