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ABB S5N300TW - MCCB 300A 3P 600V (35kA@480V)

ABB
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ABB S5N300TW is a 3-pole molded case circuit breaker from the SACE Isomax family, designed for overload and short-circuit protection via its LI (Long-Time and Instantaneous) thermal magnetic trip unit. It is rated for 600VAC and 300A, with an interrupting capacity of 35kA at 480V, suitable for 3-phase power distribution systems. The S5N frame breaker weighs 12 lb and features a bolt-on connection for secure panel mounting. It complies with industry standards for molded case circuit breakers in commercial and industrial electrical installations. Typical applications include feeder protection, main switchboard distribution, and branch circuit protection in manufacturing facilities 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
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V
  • Phase: 3
  • Current Rating: 300A
  • Part Number: S5N300TW
  • Mounting Type: Bolt-On
  • Trip Unit: Thermomagnetic