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Square D LJP3640033X - PowerPact L 400A 3-Pole (600VAC, 25kA)

United Fuses
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Square D LJP3640033X is a PowerPact L series molded case circuit breaker designed for primary power distribution protection in commercial and industrial electrical systems. This three-pole breaker is rated for 400 amperes at 600 VAC with a 25 kA interrupting capacity, and it also supports 250 VDC applications, utilizing a Micrologic 3.3S electronic trip unit that provides LSI-type protection with thermal magnetic functionality. The unit weighs 5.19 lb and features an I-Line mounting style for direct installation into compatible panelboards and switchboards. It is certified to UL 489, CSA, NEMA, IEC, and CE standards, ensuring compliance with global safety and performance requirements. Typical applications include main or feeder protection in power distribution systems within manufacturing facilities, data centers, and large commercial buildings.

Key Features & Specifications
  • Manufacturer: Square D
  • Series/Frame: PowerPact L
  • Amperage: 400 A
  • Voltage Rating: 600 VAC, 250 VDC
  • Number of Poles: 3
  • Interrupt Rating: 25 kA at 600 VAC
  • Trip Unit: Micrologic 3.3S Thermal Magnetic Electronic
  • Mounting Type: I-Line
  • Certifications: UL 489, CSA, NEMA, IEC, CE
  • Breaking Capacity Code: J
  • Application: Power Distribution
  • Weight: 5.19 lb


LJP3640033X