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ABB XT5NU340ABYN000XXX - Molded Case Circuit Breaker 400A 600V 3-Pole

ABB
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ABB SACE Tmax XT XT5NU340ABYN000XXX is a three-pole molded case circuit breaker designed for primary overcurrent protection in industrial power distribution systems. This 400A rated device operates at 600VAC with a 25kA interrupting capacity at 480VAC, utilizing a bolt-on connection method and accepting wire sizes from 2x 2/0 to 500 kcmil copper or aluminum. The unit weighs 5.19 lb and is constructed for panelboard or switchboard installation with a compact frame design. It is certified to UL 489 and CSA C22.2 standards, ensuring compliance with North American electrical codes. Typical applications include feeder protection in manufacturing plants, commercial buildings, and heavy machinery control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, SACE Tmax XT family, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Poles: 3
  • Connection: Bolt-On
  • Wire Size: AWG 2x 2/0 to 500 kcmil, Cu/Al
  • AIC Rating: 25kA @ 480V
  • Phase: 3
  • Standards: UL 489, CSA C22.2
  • Certification: UL, CSA
  • Country of Origin: United States
  • Weight: 5.19 lb


Product Identification
  • UPC: 8056221790895