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ABB S5N - Molded Case 300A 600V 3-Pole

ABB
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The ABB S5N-3P-300A is a molded case circuit breaker from the SACE Isomax family, designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 300A, and 3-phase operation, with a 35kA interrupting capacity at 480V. The unit features a 3-pole bolt-on connection, thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions, and weighs 12 lb. This breaker complies with industry standards for molded case circuit breakers and is suitable for protecting feeders, motors, and branch circuits in commercial and industrial electrical panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, SACE Isomax S5N frame, thermal magnetic operation
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 35kA@480V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: S5
  • Weight: 12 lb
  • Standards: Complies with applicable industry standards for molded case circuit breakers
  • Applications: Industrial power distribution, feeder protection, motor branch circuits