Hager MB110A Automatic Switch 1P 10A B 6kA

The Hager MB110A is a high-quality single-pole miniature circuit breaker engineered to provide reliable protection for electrical circuits in residential and commercial environments. This device is designed to detect and interrupt overcurrents, effectively preventing damage from overloads and short circuits. With its robust construction and precise tripping mechanism, it ensures the safety and operational stability of your electrical distribution system.

Advantages

This circuit breaker offers exceptional reliability and durability, featuring a high mechanical endurance of up to 20,000 cycles. Its B-type tripping characteristic makes it ideal for protecting circuits with low inrush currents, such as lighting and general-purpose outlets. The 6kA breaking capacity provides sufficient protection for standard electrical installations, while the selectivity class 3 ensures efficient coordination with other protective devices in the system.

Suitable for

• Residential lighting circuits
• General-purpose power outlets
• Small commercial electrical installations
• Protection of resistive loads

When it may not be suitable

This device is not intended for circuits with high inrush currents, such as those powering large motors or transformers, where a C or D-type tripping curve would be required. It is also not suitable for outdoor use without a protective enclosure, as it has an IP20 rating.

Key specifications

• Number of poles: 1P
• Rated current: 10 A
• Tripping curve: B
• Breaking capacity: 6 kA
• Voltage: 400 V
• Selectivity class: 3
• Mechanical endurance: 20,000 cycles
• Protection degree: IP20

How to use

The Hager MB110A is designed for mounting on a standard DIN rail within a distribution board. Installation should be performed by a qualified electrician in accordance with local electrical regulations. The device is connected by inserting the supply wire into the top terminal and the load wire into the bottom terminal, ensuring all connections are tightened to the manufacturer's specified torque to prevent overheating.

What to consider before purchase

• Ensure the 10A rating matches the requirements of your circuit load.
• Verify that the B-type curve is appropriate for your specific application.
• Check that the installation environment is dry and protected, meeting the IP20 rating.
• Confirm compatibility with your existing distribution board and DIN rail system.

Usage recommendations

Regularly inspect the circuit breaker for any signs of physical damage or discoloration. It is recommended to test the device periodically to ensure the tripping mechanism remains functional and to maintain the integrity of the electrical system.