Hager MCN140E Miniature Circuit Breaker 1P C 40A 6kA

The Hager MCN140E is a professional-grade single-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in both residential and commercial environments. This device is designed to detect and interrupt overcurrents, effectively preventing damage from overloads and short circuits. With its precise C-curve tripping characteristic and a 40A rated current, it offers a reliable solution for maintaining the integrity of electrical installations operating within 230-400V AC systems.

Advantages

This circuit breaker stands out due to its high manufacturing standards and consistent performance under demanding conditions. The 6kA breaking capacity ensures that the device can safely handle significant fault currents, providing an essential layer of safety for connected appliances and wiring. Its compact single-pole design allows for efficient space utilization within distribution boards, while the reliable mechanical construction ensures long-term operational stability and ease of installation for electrical professionals.

Suitable for

• Residential electrical distribution boards
• Commercial building power circuits
• Protection of lighting and general-purpose socket circuits
• Industrial control panels requiring 40A protection

This device may not be suitable for circuits requiring a different tripping characteristic, such as B-curve for sensitive electronics or D-curve for high-inrush current loads like large motors. It is also not intended for use in DC electrical systems, as it is specifically calibrated for AC voltage applications.

Key specifications

• Number of poles: 1
• Rated current: 40A
• Tripping characteristic: C-curve
• Breaking capacity: 6kA
• Rated operational voltage: 230-400V AC

The Hager MCN140E is installed by mounting it onto a standard DIN rail within an electrical distribution enclosure. Ensure that the power supply is completely disconnected before attempting installation. The input and output cables should be securely fastened to the terminals, ensuring that the wire gauge is appropriate for a 40A load to prevent overheating. Once installed, the device can be toggled manually using the front-facing lever to control the circuit state.

What to consider before purchase

• Verify that the 40A rating matches the requirements of your specific circuit load.
• Ensure the C-curve characteristic is appropriate for the types of devices connected to the circuit.
• Confirm that the 6kA breaking capacity meets the safety standards of your local electrical grid.
• Check the available space in your distribution board for a single-pole module.

Usage recommendations: Installation must be performed by a qualified electrician in accordance with local electrical regulations. Regularly inspect the circuit breaker for signs of wear or heat damage and test the manual switching mechanism periodically to ensure continued functionality.