Miniature Circuit Breaker (MCB)LYM5-63

Description：

High short-short capacity 6KA.
Designed to protect circuit carrying big current up to 63A.
Contact position indication.
Used as main switch in household and similar installation.

The LYM5-63 compact AC MCB is designed for space-saving electrical panels where reliable overcurrent protection is required without increasing enclosure size.

As a specialized miniature circuit breaker manufacturer, we engineered this model with a compact housing while maintaining compliance with IEC standards. It is widely used in modern residential and commercial installations that demand high wiring density.

Key advantage: compact design with consistent breaking performance.

🔹 Use Cases / Industries

Residential power distribution boards
Lighting circuits and socket protection
Small commercial buildings
Electrical panel assembly factories
OEM electrical equipment manufacturing

Technical Data

Rated Current: 6A,10A,16A,20A,25A,32A,40A,50A,63A
Rated Voltage:230/400VAC(240/415)
Rated Frequency: 50/60Hz
Number of Pole: 1P,2P,3P,4P(1P+N,3P+N)
Module size:18mm
ICurve type: B,C,D Type
Breakering capacity: 6000A
Optimumoperating temperature: -5°C to 40°C
Terminal Tightening torque: 5N-m
Terminal Capacity(top): 25mm?
Terminal Capacity(bottom):25mm?
Electro-mechanical endurance:4000cycles
Mounting: 35mm DinRail
Suitable Busbar: PIN Busbar

Compliance

IEC60898-1
EN60898-1

Overall &Installation Dimensions

The tripping characteristic curves

FAQ

1. What is the LYM5-63 AC MCB designed for?
The LYM5-63 is a compact AC miniature circuit breaker designed to protect low-voltage electrical circuits from overload and short-circuit faults. It ensures safe disconnection in residential and light commercial power systems.

2. What current ratings are available for the LYM5-63?
This model supports multiple rated currents within the 63A range, allowing flexible selection based on circuit load requirements and installation standards.

3. What breaking capacity does this MCB offer?
The LYM5-63 provides stable short-circuit breaking capacity suitable for household distribution boards and small commercial panels, ensuring reliable fault interruption.

4. Is the LYM5-63 compliant with international standards?
Yes. It is manufactured in compliance with IEC 60898 and relevant low-voltage protection standards, and is suitable for CE-certified electrical systems.

5. How is the LYM5-63 installed?
The breaker is designed for 35 mm DIN rail mounting, enabling fast installation and easy replacement inside standard distribution boxes.

6. Can this product be supplied for OEM or bulk orders?
Yes. As a professional MCB manufacturer and factory, we support OEM branding, wholesale supply, and bulk production for global distributors and project buyers.