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Square D NAL36900 - Molded Case Circuit Breaker 900A 600V

Square D
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Square D NAL36900 is a molded case circuit breaker from the NAL Series, designed for overcurrent protection in industrial power distribution systems. This 3-pole, 3-phase unit delivers a 900A current rating at 600V AC, employing a thermal magnetic protection mechanism with LI (Long-Time and Instantaneous) trip functions for reliable fault interruption. The N Frame construction features a feed-thru connection and weighs 82 lb, with load side lugs accommodating 3/0 to 600 AWG wire sizes. It offers an interrupting rating of 50kA at 480V AC, 25kA at 600V AC, and 100kA at 240V AC, meeting stringent industry standards for safety and performance. Typical applications include main or feeder protection in commercial and industrial electrical panels, switchboards, and motor control centers.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: NAL Series
  • Type: NAL
  • Weight: 82 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: N Frame
  • Voltage Rating: 600V AC
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • AIC rating: 50kA@480V, 25kA@600V, 100kA@240V
  • Phase: 3
  • Current Rating: 900A
  • Amperage Rating: 900A
  • Frame Type: NA (I-Line)
  • Load Side Lugs: Yes
  • Wire Size Range: 3/0-600 AWG