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BY06H-125DC MCB 10-15kA DC Miniature Circuit Breaker

The BY06H-125DC series 10-15kA DC miniature circuit breaker (MCB) offers reliable overload and short-circuit protection. With a rated current of up to 125A, 1P, 2P, 4P configurations, and voltages of 250VDC, 500VDC, or 1000VDC, it features a 27mm width and a flame-retardant casing.

  • Rated Current In 63A, 80A, 100A, 125A
  • Poles 1P, 2P, 4P
  • Rated Voltage Ue 1P: 250VDC; 2P: 500VDC; 4P: 1000VDC

product detail

Product Features 

  • The BY06H-125DC series is a high-performance 10-15kA DC miniature circuit breaker (MCB) designed for demanding applications requiring reliable overload and short-circuit protection. With a rated current of up to 125A, it is suitable for 1P, 2P, and 4P configurations and supports DC voltages of 250VDC, 500VDC, and 1000VDC, making it versatile for various power distribution systems.
  • This series MCB features a compact design with a single-pole width of only 27mm, allowing it to accommodate larger internal components such as thicker copper conductors and robust coils. This design ensures a higher current-carrying capacity while maintaining efficient space utilization. The flame-retardant casing enhances safety by providing excellent resistance to heat and fire, making the breaker suitable for use in high-risk environments.
  • The BY06H-125DC series MCB is equipped with an advanced tripping mechanism that ensures rapid response to overload and short-circuit conditions, protecting electrical systems and equipment from damage. The 15kA breaking capacity for currents up to 100A and the 10kA capacity for 125A make it reliable for high-fault current scenarios. Additionally, the breaker minimizes downtime and enhances operational safety with features like contact position indication and arc extinguishing capabilities.
  • Ideal for renewable energy systems, industrial machinery, and large-scale DC installations, the BY06H-125DC series MCB delivers superior performance and durability. Its high breaking capacity, compact size, and robust construction make it an excellent choice for ensuring the safe and efficient operation of DC power systems in a wide range of applications.

Technical Parameters

Type Values
Rated Current In 63A, 80A, 100A, 125A
Poles 1P, 2P, 4P
Rated Voltage Ue 1P: 250VDC; 2P: 500VDC; 4P: 1000VDC
Rated Insulation Voltage Ui 1000V
Rated Ultimate Short-circuit Breaking Capacity Icu 10kA (In≤100A), 15kA (In=125A)
Rated Service Short-circuit Breaking Capacity Ics 7.5kA (In≤100A), 10kA (In=125A)
Rated Impulse Withstand Voltage Uimp 4kV
Tripping Curve 10In±20%
Function Over-current, short-circuit

Dimensions

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