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ABB S5N400TW-4 - Molded Case Circuit Breaker 400A 600V

ABB
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ABB S5N400TW-4 is a 4-pole molded case circuit breaker from the SACE Isomax family, designed for thermal-magnetic protection with long-time and instantaneous (LI) functions. It is rated for 600V AC, 400A continuous current, and a 35kA interrupting capacity at 480V, supporting 3-phase systems. The unit weighs 12 lb and features a bolt-on connection within an S5 frame size. It complies with applicable industry standards for industrial electrical distribution and motor control applications. This breaker is typically used in commercial and industrial power systems requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Poles: 4
  • Phase: 3
  • AIC Rating: 35kA@480V
  • Frame Size: S5
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 12 lb
  • Family: SACE Isomax
  • Functions: LI - Long-Time and Instantaneous


Product Identification
  • UPC: Not available
  • GTIN: Not available