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Square D MA26500AB - Molded Case Circuit Breaker 500A 600V

Square D
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Square D MA26500AB is a 500 Amp, 2-pole molded case circuit breaker from the I-Line family, designed to provide thermal magnetic protection with Long-Time and Instantaneous (LI) trip functions for industrial and commercial power distribution systems. It operates at a voltage rating of 600V and delivers an interrupting capacity of 30kA at 480V, ensuring robust fault current handling. The breaker features an M Frame construction, weighs 40 lb, and utilizes an I-Line style plug-in connection for secure mounting in panelboards. It complies with industry standards for molded case circuit breakers, offering reliable overcurrent protection in demanding electrical environments. This unit is suitable for single-phase applications requiring precise coordination between long-time delays and instantaneous trip responses.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: I-Line
  • Type: MA
  • Weight: 40 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: M Frame
  • Voltage Rating: 600V
  • Poles: 2
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 30kA@480V
  • Phase: 1
  • Current Rating: 500A
  • Amperage: 500 Amp
  • Number of Poles: 2
  • Frame Type: MA