Leave Your Message

BY05-32 MCB Single Modular 3KA Miniature Circuit Breaker

The BY05-32 series single modular 3kA miniature circuit breaker (MCB) supports up to 32A with a 1P+N configuration at 240V and rated frequency of 50/60Hz. It combines live and neutral poles, with the N pole unprotected against overload and short-circuit, providing efficient and compact circuit protection for single-phase systems.

  • Rated Current In 3A, 6A, 10A, 16A, 20A, 25A, 32A
  • Poles 1P+N
  • Rated Voltage Ue 1P+N: 240V~

product detail

Product Overview

  • The BY05-32 series single modular 3kA miniature circuit breaker (MCB) is a compact and efficient device designed to provide overload and short-circuit protection in single-phase electrical systems. With a rated current of up to 32A and a 1P+N pole configuration, this breaker integrates both the live (L) and neutral (N) poles in a single modular design, simplifying wiring and installation. It operates at a rated voltage of 240V with a frequency of 50/60Hz, making it compatible with global electrical standards.
  • A key feature of the BY05-32 series is its unique design where the neutral pole (N) is not equipped with overload or short-circuit protection. This ensures that while the live pole (L) is fully protected, the neutral pole provides a reliable connection without interrupting the current flow in non-fault conditions. This design is particularly suitable for residential and light commercial applications, where compact, efficient, and safe circuit protection is essential.
  • The MCB is constructed with high-quality, flame-retardant plastic housing, enhancing safety by reducing fire risks under extreme conditions. Its robust design also protects the internal components from mechanical damage, ensuring durability and long service life. The single modular width allows for efficient use of space in electrical panels, making it ideal for installations where compact solutions are required.

Technical Parameters

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

Dimensions 

3692-202309121507091374.jpg