Miniature circuit breakers

Circuit breakers - essential protection for electrical installations

Circuit breakers are a key element of protection for every electrical installation.   At Onninen we offer a wide selection of these devices. Our products guarantee safety and reliability. We provide solutions for homes, offices and industrial plants. Many years of experience allow us to advise in every situation.

Circuit breakers protect against overload and short circuit. They automatically cut off the power supply in the event of problems. They prevent damage to devices and fires. This is the basis of a safe electrical installation. In our offer you will find products from renowned brands.

Types of circuit breakers available at Onninen

We offer different types of circuit breakers. Single- and three-phase models are available. 1P circuit breakers are used in single-phase circuits. 3P circuit breakers are suitable for three-phase systems. We also have versions with different tripping characteristics.

• Type B circuit breakers - for lighting circuits
• Type C circuit breakers - for circuits with inductive devices
• D-type circuit breakers - for circuits with high starting currents

Our assortment includes products from leading manufacturers.   We offer Eaton, ABB, ETI, Schneider Electric and Hager circuit breakers. Each of them has its unique features and advantages. Our consultants will help you choose the optimal solution.

How to choose the right circuit breaker?

Choosing the right circuit breaker is crucial. Several important parameters must be taken into account. The first is the rated current of the circuit. The next is the type of protected receiver. The selectivity of protection is also important.

In everyday practice, we encounter various cases. For example, for a typical socket circuit, 16A type C switches are used. Lighting circuits are usually protected by 10A type B switches. For electric motors, type D is often selected.

The correct selection of the circuit breaker guarantees effective protection and continuity of power supply.   Too low a rated current causes unnecessary shutdowns. Too high a current will not provide proper protection. Therefore, it is worth consulting our specialists.

We often come across the question about the differences between circuit breakers from different manufacturers. Each brand has its own characteristics. Eaton is known for its reliability. ABB offers advanced solutions. ETI is a good value for money. Schneider Electric is distinguished by its innovation. Hager provides comprehensive systems.

Practical applications of circuit breakers

Circuit breakers are used in various areas. In single-family homes, they protect individual circuits. In offices, they protect computer equipment and lighting. In industry, they protect production lines and machines.

We recently completed a project for a large shopping center.   We used overcurrent breakers of various types there. We protected the lighting circuits with type B breakers. For air conditioning we chose type C. Elevators required the use of type D.

In the case of office reorganization, we most often use 16A type C breakers. They are suitable for powering computers and printers. For server rooms, we choose models with higher rated currents. They provide adequate protection at high loads.

Circuit breakers work with other elements of the installation. We often combine them with differential circuit breakers. We also create extensive switchboards. In them, circuit breakers protect individual circuits.

• Fire protection installations - we use specially designed switches
• Pump controllers - we protect them with C or D type switches
• Hydrophore sets - require precise selection of protection

Our experience shows that the right choice of switches is crucial. It affects the safety and reliability of the installation. That is why we always advise an individual approach. We analyze the customer's needs and the specifics of the facility.

Onninen recommends the use of circuit breakers from reputable brands.   They guarantee high quality and reliability. It is worth investing in proven solutions. This translates into long-term safety of the installation.

In our daily practice, we see how important it is to properly configure protection. Well-selected circuit breakers are essential. They provide protection against overload and short circuit. They also protect against fire and damage to devices.

Many customers ask us about the possibilities of modernizing existing installations. In such cases, we often replace old switches with new ones. Modern models offer better parameters and greater safety. They also allow integration with building management systems.

At Onninen, we focus on comprehensive solutions. We offer not only circuit breakers, but also accessories. In our assortment you will find disconnectors, contactors and many others. We create complete electrical protection systems.

We invite you to contact our advisors.   They will help you choose the right circuit breakers. Together we will create a safe and reliable electrical installation. Our solutions work well in all conditions.