A row of circuit breakers inside a distribution cabinet
Voltecon – A Reliable Supplier of Electrical Distribution Products
Miniature Circuit Breakers

Miniature Circuit Breakers for Circuit Protection and Control

A Miniature Circuit Breaker (MCB) is a widely used basic electrical protection device that automatically disconnects a circuit in the event of an overload or short circuit. Voltecon MCB products cover various current ratings, pole configurations, and breaking capacities, making them suitable for circuit protection and control in commercial buildings, industrial facilities, and general electrical installations.

Compared with traditional fuse protection, MCBs offer reusability, easy operation, and a compact design, making them particularly suitable for electrical installations that require centralized mounting, clear classification, and ongoing maintenance.

Miniature circuit breakers in various specifications
Features
Compact Size

Designed to occupy minimal space while providing reliable circuit protection.

Reset After Tripping

After the fault has been cleared, the breaker can be manually reset for easier maintenance and circuit recovery.

Multiple Trip Characteristics

Available with different trip characteristics to match various load types and circuit protection requirements.

Reliable Circuit Protection

Provides overload and short-circuit protection to help improve safety in low-voltage electrical installations.

Types
MLKBD1-63

MLKBD1-63 miniature circuit breaker.

MLKBD1-63 miniature circuit breaker.
Table 1: Key Technical Specifications of MLKBD1-63
Pole1P2P, 3P, 4P
Rated Current (A)6, 10, 16, 20, 25, 32, 40, 50, 63
Rated Voltage (V)230 / 240400 / 415
Ambient Temperature-5°C to +40°C
Instantaneous Release TypeB, C, D
Rated Short-Circuit Breaking Capacity Icn (kA)6 kA (1–40 A) / 4 kA (50–63 A)
Need Support from Voltecon?
Technology

Learn about product protection features, selection criteria, and application principles.

FAQs

Review FAQs on ratings, poles, trip curves, and installation methods.

Online Inquiry

If you have any requirements, please fill out the form below, and we will contact you as soon as possible.