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ABB S203U-K40 - Molded Case Circuit Breaker 40A 240V 3-Pole

ABB
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ABB S203U-K40 is a 3-pole miniature circuit breaker from the S 200 U Series designed for overcurrent protection in industrial and commercial electrical systems. It operates at 240V with a 40A current rating and provides LI (Long-Time and Instantaneous) protection functions through thermal magnetic trip technology. This bolt-on unit weighs 0.04 lb and features a compact molded case construction for reliable performance. The breaker carries a 10kA interrupting capacity at 240V and complies with industry standards for safety and performance. It is suitable for use in three-phase applications requiring dependable circuit protection against overloads and short circuits.

Key Features & Specifications
  • Type: Molded Case
  • Family: S 200 U Series
  • Weight: 0.04 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: 40A
  • Amperage: 40A
  • Voltage: 240VAC
  • Mounting Type: DIN Rail
  • Interrupt Rating: 10kA @ 240V
  • Trip Unit: Thermal Magnetic
  • Series/Frame: S200U
  • Certifications: Industry Standard Compliant