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Square D HLM36040 - Molded Case Circuit Breaker 40A 3-Pole 600V

Square D
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Square D HLM36040 is a Powerpact H-Frame molded case circuit breaker designed for overload and short circuit protection in industrial power distribution systems. This three-pole, 40 Amp breaker is rated for 600 Volts AC and features a thermal magnetic trip unit with LI (Long-Time and Instantaneous) functions, providing a breaking capacity of 100kA at 480V. The unit weighs 4 lb and utilizes a bolt-on connection with unit mount construction for secure installation. It is UL 489 listed, CSA certified, and meets IEC and NEMA standards for reliable performance. Typical applications include motor control centers, panelboards, and switchboards requiring robust circuit protection in commercial and industrial environments.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Type: HLM
  • Weight: 4 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: H Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 100kA@480V
  • Phase: 3
  • Current Rating: 40A
  • Amperage: 40 Amp
  • Voltage: 600 Volt AC
  • Frame Type: H-Frame
  • Trip Unit: Thermal Magnetic
  • Interrupt Rating: 50kA at 600 VAC
  • Mounting Type: Unit Mount
  • Certifications: UL 489, CSA, IEC, NEMA
  • Continuous Current Rating: 80%
  • Line and Load Lugs
  • Operating Temperature Range: -25°C to 70°C