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Challenger SJK3T250 - Thermal Magnetic Trip Unit 250A 600V

Challenger
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Challenger SJK3T250 is a three-pole thermal magnetic circuit breaker trip unit designed for providing reliable overcurrent protection in industrial power distribution systems. It operates at a voltage rating of 600V AC with a fixed current rating of 250A, utilizing a Long-Time and Instantaneous (LI) trip function for coordinated protection against both sustained overloads and short-circuit faults. The unit is engineered for compatibility with Challenger SJK series breaker frames and is constructed to meet rigorous industrial standards for safety and performance in demanding electrical environments.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit, SJK Series
  • Voltage Rating: 600V AC
  • Current Rating: 250A (Fixed)
  • Poles: 3
  • Protection Functions: Long-Time and Instantaneous (LI)
  • Protection Type: Thermal Magnetic
  • Compatible Frames: Challenger SJK Series
  • Item Subcategory: Trip Units & Programmers
  • Weight: 5 lb


Product Identification
  • Manufacturer: Sylvania/Challenger
  • Family: SJK Series
  • Model: SJK3T250