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Square D MA26450AC - Molded Case Circuit Breaker 450A 600V

Square D
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Square D MA26450AC is a 2-pole molded case circuit breaker from the I-Line family, designed for thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. It is rated for 600V AC, 450A continuous current, and provides an interrupting capacity of 30kA at 480V AC for single-phase applications. The unit weighs 40 lb and features an I-Line style plug-in connection for secure panel mounting. This breaker complies with industry standards for industrial power distribution and overcurrent protection. Typical applications include main or feeder protection in commercial and industrial switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, I-Line Family, Type MA
  • Voltage Rating: 600V AC
  • Current Rating: 450A
  • Poles: 2
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC Rating: 30kA@480V
  • Phase: 1
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 40 lb
  • Item Subcategory: Molded Case