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BY06H-125 MCB 10-15KA Miniature Circuit Breaker

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BY02-63 MCB 3kA Miniature Circuit Breaker

BY02-63 MCB 3kA Miniature Circuit Breaker
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BY02-63 MCB 3kA Miniature Circuit Breaker
BY02-63 MCB 3kA Miniature Circuit Breaker
BY02-63 MCB 3kA Miniature Circuit Breaker
BY02-63 MCB 3kA Miniature Circuit Breaker

BY02-63 MCB 3kA Miniature Circuit Breaker

The BY02-63 series 3kA miniature circuit breaker (MCB) supports rated current up to 63A 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 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • Poles 1P, 2P, 3P, 4P
  • Rated Voltage Ue 1P: 240/415V~; 2P, 3P, 4P: 415V~
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Product Detail

product detail

Product Overview

  • The BY02-63 series 3kA miniature circuit breaker (MCB) is a reliable device designed for protecting electrical systems from overloads and short circuits. With a rated current of up to 63A and pole configurations available in 1P, 2P, 3P, and 4P, it meets diverse application requirements in residential, commercial, and industrial settings. This MCB operates at a rated voltage of 240V for single-phase systems and 415V for three-phase systems, with a frequency of 50/60Hz, ensuring compatibility with international electrical standards.
  • A key feature of the BY02-63 series is its flame-retardant plastic housing, which enhances safety by reducing the risk of fire under extreme conditions. The durable casing also protects the internal components from external impacts, ensuring long-lasting performance and reliability. Additionally, the circuit breaker includes an indicator window that allows for quick visual status checks, improving usability and maintenance efficiency.
  • The BY02-63 series provides dependable overload and short-circuit protection, safeguarding circuits and connected equipment from damage. Its high-sensitivity trip mechanism reacts rapidly under fault conditions, minimizing risks and preventing electrical hazards. The compact and lightweight design makes it easy to install and integrate into electrical panels while optimizing space utilization.

Technical Parameters

Type Values
Rated Current In 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Poles 1P, 2P, 3P, 4P 
Rated Voltage Ue 1P: 240/415V～; 2P, 3P, 4P: 415V～
Rated Insulation Voltage Ui 400V
Rated Frequency 50/60Hz
Rated Ultimate Short-circuit Breaking Capacity Icu 3kA
Rated Service Short-circuit Breaking Capacity Ics 3KA
Rated Impulse Withstand Voltage Uimp 4kV
Tripping Curve B, C, D
Function Overload, short-circuit

Dimensions 

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