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ABB S201-K4A - Miniature Circuit Breaker 4A 1 Pole K-Curve

ABB
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ABB S201-K4A is a high-performance miniature circuit breaker from the S200 series, designed for reliable overcurrent and short-circuit protection in industrial and commercial electrical systems. This 4 amp, 1 pole unit operates at AC voltages up to 277/480Y VAC and DC voltages up to 60/110 VDC, featuring a K-curve thermal magnetic trip unit with a 6 kA interrupt rating for current limiting protection and fast breaking time. The breaker is constructed for DIN rail mounting, supports reverse feed, and accepts wire sizes from 18 to 4 AWG, with a compact design weighing 2 lb. It complies with UL, CSA, IEC, and CE certifications, ensuring adherence to global safety and performance standards. Typical applications include branch circuit protection, motor control centers, and lighting panels in industrial automation and power distribution systems.

Key Features & Specifications
  • Manufacturer: ABB
  • Item Subcategory: Molded Case
  • Weight: 2 lb
  • Amperage: 4 A
  • Voltage Rating: 277/480Y VAC, 60/110 VDC
  • Poles: 1
  • Interrupt Rating: 6 kA
  • Trip Unit: K-Curve Thermal Magnetic
  • Mounting Type: DIN Rail
  • Series/Frame: S200
  • Suitable for Reverse Feed
  • Certifications: UL, CSA, IEC, CE
  • Wire Size: 18 to 4 AWG
  • Frequency: 50/60 Hz
  • Power Rating: 1.7 W