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Square D MA266001021 - Molded Case Circuit Breaker 600A 600V

Square D
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Save $-1,439.61
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The Square D MA266001021 is a 2-pole, 600A molded case circuit breaker from the I-Line family, designed for thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. It operates at a voltage rating of 600V and a current rating of 600A, with an AIC rating of 30kA at 480V for single-phase applications. This unit features an I-Line style plug-in connection, weighs 38 lb, and is built on an M Frame with a 120V shunt trip for remote tripping capability. It complies with industry standards for molded case circuit breakers, ensuring reliable overcurrent and short-circuit protection. Typical industrial applications include power distribution panels, motor control centers, and switchboards requiring high-ampacity, compact protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, I-Line Style Plug-In
  • Voltage Rating: 600V
  • Current Rating: 600A
  • Poles: 2
  • Phase: 1
  • AIC Rating: 30kA@480V
  • Frame Size: M Frame
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Additional Info: Complete with 120V shunt trip
  • Weight: 38 lb


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