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ABB S203U-K2 - 3-Pole 2A Molded Case Circuit Breaker (240V)

ABB
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ABB S203U-K2 is a 3-pole molded case circuit breaker from the S 200 U Series, designed for branch circuit protection with LI (Long-Time and Instantaneous) functions. This thermal-magnetic breaker is rated for 2A at 240V with a 10kA interrupting capacity, utilizing a K-curve trip characteristic to handle higher inrush currents typical of motor and transformer loads. The unit weighs 5 lb, features a bolt-on connection, and is constructed for DIN rail mounting with finger-safe terminals for secure panelboard and control panel installations. It complies with UL 489, CSA 22.2 No. 5, and IEC 60947-2 standards, ensuring adherence to North American and international safety requirements. This breaker is suited for commercial and industrial applications requiring reliable overcurrent protection.

Key Features & Specifications
  • Manufacturer: ABB
  • Item Subcategory: Molded Case
  • Family: S 200 U Series
  • Type: S203U-K
  • Weight: 5 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 240V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 10kA@240V
  • Phase: 3
  • Current Rating: 2A
  • Rated Current: 2A
  • Rated Voltage: 240V AC
  • Interrupt Rating: 10kA @ 240V
  • Mounting Type: DIN Rail
  • Tripping Characteristic: K Curve
  • Protection Method: Thermal-Magnetic
  • Certifications: UL 489, CSA 22.2 No. 5, IEC 60947-2
  • Application: Commercial, Industrial


Part Number: S203U-K2