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Square D FH360451021 - Molded Case Circuit Breaker 45A 3-Pole 600V

Square D
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Square D FH360451021 is a 3-pole molded case circuit breaker from the I-Line family, designed for overcurrent protection in industrial power distribution systems using a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. It is rated for 45A continuous current, 600VAC maximum voltage, and delivers an interrupting capacity of 25kA at 480VAC, 18kA at 600VAC, and 65kA at 240VAC. The breaker features an F Frame size, weighs 6 lb, and uses an I-Line style plug-in connection for direct mounting in compatible panelboards and switchboards. It is UL and CSA approved, and comes complete with a 120/240Vac shunt trip for remote tripping capability. Typical applications include Class 650, 734, and 820 I-Line panelboard and switchboard installations in commercial and industrial facilities.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: I-Line
  • Type: FH
  • Weight: 6 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: 25kA@480V
  • Phase: 3
  • Current Rating: 45A
  • Additional Info: complete with 120/240Vac shunt trip
  • Interrupt Rating: 18KA @ 600VAC, 25KA @ 480VAC, 65KA @ 240VAC
  • Certifications: UL, CSA Approved