MLKBD1-63 Miniature Circuit Breaker (AC/DC-Applicable)

MLKBD1-63 Miniature Circuit Breaker is a durable low-voltage protection device designed for AC 50/60 Hz electrical systems with rated currents up to 63 A. It provides reliable overload and short-circuit protection for lighting and power distribution networks in industrial, commercial, and residential power projects.

Table of Contents

Product Overview

The MLKBD1-63 Miniature Circuit Breaker is engineered for low-voltage electrical protection, compliant with IEC60898 standards for circuit breakers used in distribution networks. It supports AC 50/60 Hz systems, available in single-pole (230 V) and multi-pole (400 V) configurations, and is suitable for wiring systems in industrial enterprises, commercial buildings, high-rise structures, and residential installations. This model also allows infrequent line switching during normal operation for maintenance or system control.

Key Features

  • Designed for AC 50/60 Hz electrical systems with:

    • 230 V for single pole

    • 400 V for double, three, or four poles

  • Rated current up to 63 A

  • Effective protection against overload and short-circuit faults

  • Complies with IEC60898 circuit breaker standards for global installation requirements 

  • Suitable for infrequent line switching during normal operations

  • Reliable solution for multiple environments — industrial, commercial, and residential 

  • Compact design for easy DIN-rail mounting

Typical Applications

  • Power distribution boards in industrial facilities

  • Electrical installations in commercial districts and office towers

  • Lighting and electrical systems for high-rise residential buildings

  • Low-voltage electrical installations and control panels

  • OEM electrical assemblies and contractor project implementations

FAQ

It is designed for AC 50/60 Hz power systems with rated voltages of 230 V (single pole) and 400 V (multi-pole), protecting circuits from overload and short circuits.

 

Yes — it is widely used in industrial, commercial, high-rise, and residential electrical installations for reliable circuit protection.

 

No — it is primarily a protection device, but it supports infrequent manual line switching under normal operating conditions as part of maintenance and control processes.

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Interested in this product? Please fill out the form below to receive a detailed quote or more information.

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