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ABB S5N-2P-400A - Molded Case Circuit Breaker 400A 600V

ABB
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ABB S5N-2P-400A is a 2-pole molded case circuit breaker from the SACE Isomax family, designed for reliable overcurrent protection in industrial and commercial power distribution systems. It is rated for 400A at 600V AC/DC with a solid-state LI (Long-Time and Instantaneous) trip unit and an interrupting capacity of 35kA at 480V AC. The unit weighs 12 lb and features a bolt-on connection for secure mounting in panelboards and switchboards. It complies with UL 489 and CSA C22.2 standards for safety and performance. This breaker is suitable for protecting feeders, branch circuits, and main disconnects in manufacturing plants, data centers, and commercial buildings.

Key Features & Specifications
  • Manufacturer: ABB
  • Item Subcategory: Molded Case
  • Family: SACE Isomax
  • Type: S5N
  • Weight: 12 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: S5
  • Voltage Rating: 600V AC/DC
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Solid State
  • AIC rating: 35kA at 480V AC
  • Phase: 1
  • Current Rating: 400A
  • Part Number: S5N-2P-400A
  • Standards: UL 489, CSA C22.2