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BY06H-125 MCB 10-15KA Miniature Circuit Breaker

The BY06H-125 series 10-15kA miniature circuit breaker (MCB) supports rated current up to 125A with poles from 1P to 4P. It operates at 240V/415V with rated frequency of 50/60Hz, providing reliable overload and short-circuit protection for various electrical systems.

  • Rated Current in 63A, 80A, 100A, 125A
  • Poles 1P, 2P, 3P, 4P
  • Rated Voltage Ue 1P: 240/415V~; 2P, 3P, 4P: 415V~

product detail

Product Overview

  • The BY06H-125 series 10-15kA miniature circuit breaker (MCB) is a high-performance device engineered to protect electrical systems from overloads and short circuits. With a rated current of up to 125A and pole configurations ranging from 1P to 4P, it is ideal for residential, commercial, and industrial applications. Operating at 240V for single-phase systems and 415V for three-phase systems with a frequency of 50/60Hz, the breaker is designed to meet global safety and performance standards.
  • This MCB offers an impressive breaking capacity, with a maximum of 15kA for currents up to 100A and 10kA for the full-rated 125A. Its advanced internal design includes larger copper components, coils, and wires, enabling it to handle higher current loads efficiently. Despite its robust capabilities, the BY06H-125 maintains a compact 27mm width, making it a space-efficient solution for modern electrical panels.
  • The device is built with a flame-retardant plastic housing, enhancing safety by reducing fire risks and protecting internal components from mechanical and environmental damage. A convenient indicator window allows for quick and easy monitoring of the breaker’s operational status, simplifying maintenance and troubleshooting.
  • With its combination of high breaking capacity, innovative design, compact size, and robust construction, the BY06H-125 series is a trusted solution for professionals seeking powerful and reliable circuit protection. 

Technical Parameters

Type Values
Rated Current In 63A, 80A, 100A, 125A
Poles 1P, 2P, 3P, 4P
Rated Voltage Ue 1P: 240/415V~; 2P, 3P, 4P: 415V~
Rated Insulation Voltage Ui 1000V
Rated Frequency 50/60Hz
Rated Ultimate Short-circuit Breaking Capacity Icu 15kA(In≤100A), 10kA(In=125A)
Rated Service Short-circuit Breaking Capacity ics 15kA(In≤100A), 10kA(In=125A)
Rated Impulse Withstand Voltage Uimp 6kV
Tripping Curve C: 8In±20%, D: 12In±20%
Function Overload, short-circuit

Dimensions 

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