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ABB S203UP-K20 - 3-Pole 20A Thermal-Magnetic MCB

ABB
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ABB S203UP-K20 is a 3-pole molded case circuit breaker from the S 200 UP Series, designed for thermal-magnetic protection with long time and instantaneous trip functions in commercial and industrial power systems. It is rated for 20A continuous current at 480VAC with a 10kA interrupting capacity at 480V, supporting 3-phase, 480Y/277VAC applications. The unit features a feed-thru connection, weighs 1 lb, and is built for DIN rail mounting with a K-trip curve for current-limiting performance. It complies with UL 489 and CSA C22.2 No. 5 standards, and is suitable for reverse feed installations. This breaker is intended for use in commercial and industrial three-phase distribution panels and load centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: ABB
  • Family: S 200 UP Series
  • Poles: 3
  • Current Rating: 20A
  • Voltage Rating: 480VAC (480Y/277VAC)
  • Interrupt Rating: 10kA @ 480V
  • Protection: Thermal-Magnetic, K-Curve
  • Trip Functions: Long Time and Instantaneous Trip
  • Connection: Feed-Thru
  • Mounting Type: DIN Rail
  • Weight: 1 lb
  • Certifications: UL 489, CSA C22.2 No. 5
  • Application: Commercial, Industrial
  • Features: Current Limiting, Suitable for Reverse Feed


Part Number: S203UP-K20