BY05H-40 MCB Single Modular 6KA Miniature Circuit Breaker

Product Overview

• The BY05H-40 series single modular 6kA miniature circuit breaker (MCB) is designed to provide reliable overload and short-circuit protection for single-phase electrical systems. With a rated current of up to 40A, a 1P+N pole configuration, and operating at 230V/50Hz, it is an ideal solution for residential, commercial, and light industrial applications.
• This breaker combines live (L) and neutral (N) poles into a compact single modular design. While the live pole is fully protected, the neutral pole does not offer overload or short-circuit protection, ensuring efficient functionality without interrupting neutral connections in non-fault conditions.
• The BY05H-40 series incorporates advanced features to enhance safety and performance. Its current-limiting contact system and magnetic blow-type arc extinguishing device significantly reduce the impact of large short-circuit currents on the product and connected equipment. These features improve arc extinguishing capabilities and ensure higher breaking capacity, protecting both the electrical system and downstream devices.
• Constructed with high-quality imported materials, the breaker’s case and functional components are flame-retardant, heat-resistant, and impact-proof. This robust design ensures durability, reliability, and long service life, even in demanding environments. Its single modular width allows for efficient use of space in electrical panels, making it ideal for compact installations.

Technical Parameters

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