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ABB S272-K20A - Miniature Circuit Breaker 20A 2-Pole

ABB
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ABB S272-K20A is a 2-pole miniature circuit breaker from the System pro M series, designed for reliable supplemental protection in industrial and commercial applications. It is rated for 20A current and 277VAC, featuring a Type K trip characteristic for fast, current-limiting operation with a breaking time of 2.5 to 3.5 milliseconds. The breaker has an interrupting rating of 10kA, weighs 0.56 lb, and is constructed for DIN rail mounting with a robust molded case. It is certified under UL 1077 and CSA 22.2, ensuring compliance with North American safety standards for control panels and machinery. This device is ideal for protecting equipment in industrial automation, motor circuits, and commercial distribution systems where fast overcurrent response is critical.

Key Features & Specifications
  • Manufacturer: ABB
  • Item Subcategory: Molded Case
  • Weight: 0.56 lb
  • Part Number: S272-K20A
  • Series: System pro M
  • Number of Poles: 2
  • Current Rating: 20A
  • Voltage Rating: 277VAC
  • Mounting Type: DIN Rail
  • Interrupt Rating: 10kA
  • Tripping Characteristic: Type K
  • Certifications: UL 1077, CSA 22.2
  • Current Limiting: Yes
  • Fast Breaking Time: 2.5 – 3.5 msec