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Square D FI36040CBA - 3-Pole 40A Circuit Breaker (600V, I-Line)

Square D
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Square D FI36040CBA is a 3-pole, 40-amp, 600-volt molded case circuit breaker from the I-Line family, designed for thermal magnetic protection with long-time and instantaneous trip functions. It features a 200kA interrupting capacity at 480V and is current limiting for enhanced fault protection. The unit weighs 12 lb and uses an F Frame construction with I-Line style plug-in connection for secure mounting in power distribution panels. It complies with UL and CSA certifications for industrial safety standards. This breaker is suitable for commercial and industrial power distribution applications requiring reliable overcurrent protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: I-Line
  • Type: FI
  • Weight: 12 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: F Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 200kA@480V
  • Phase: 3
  • Current Rating: 40A
  • Amperage: 40 Amps
  • Voltage Rating: 600 Volts AC
  • Mounting Type: I-Line Style Plug-In
  • Trip Unit: Thermal Magnetic (Long-Time and Instantaneous)
  • Interrupt Rating: 200kA at 480V
  • Current Limiting: Yes
  • Ambient Temperature Rating: 40°C
  • Certifications: UL Listed, CSA Certified


Part Number: FI36040CBA