Miniature circuit breakers - others

Circuit breakers - other: comprehensive solutions for every installation

Onninen's offer includes a wide selection of circuit breakers from the "other" category.   Our product range includes advanced solutions that provide optimal protection for electrical installations in a variety of applications.   Experienced Onninen specialists provide professional advice in selecting the right equipment.

We often come across questions about the differences between the various types of circuit breakers. Selective circuit breakers are among the most advanced devices in this category. They provide selective operation in complex installations. Thanks to this, in the event of a short circuit, only the damaged circuit is disconnected.

In our daily practice, we see a growing interest in power limiters. These devices allow for precise limitation of energy consumption. This is particularly important in facilities with limited connection power. Recently, in a project for a large office building, we used ABB power limiters. This allowed for optimization of energy consumption.

Circuit breakers - other: innovative brands in the Onninen offer

In the Onninen assortment you will find products of renowned brands. We offer circuit breakers from ETI, ABB, Hager and Zamel.   Each of these manufacturers is famous for the reliability and innovation of their solutions.   Thanks to cooperation with leading brands, we guarantee the highest quality of the products offered.

Many customers ask us about the differences between manufacturers. ETI specializes in highly reliable compact circuit breakers. ABB offers advanced solutions for industry. Hager is an expert in intelligent energy management systems. Zamel, on the other hand, is known for its innovative solutions for residential construction.

Our experience shows that the selection of the right brand depends on the specifics of the project. In the case of modernization of older installations, we often recommend ETI circuit breakers. Their compact dimensions facilitate installation in existing switchboards. For modern office buildings, we recommend Hager intelligent systems. They enable advanced energy management.

Criteria for selecting overcurrent circuit breakers - other technical aspects

When selecting circuit breakers from the "other" category, several key parameters should be taken into account:

• Rated current
• Trigger Characteristics
• Short-circuit capacity
• Number of poles
• Nominal voltage

Correct selection of these parameters guarantees effective protection of the installation and safety of users.

In practice, we often encounter situations when customers are not sure which parameters to choose. The rated current should be selected for the load of the protected circuit. The release characteristic depends on the type of receivers. For lighting circuits, we recommend characteristic B. For motors, characteristic C or D will work better.

The short-circuit capacity is another important parameter. It determines the maximum short-circuit current that the circuit breaker can safely interrupt. In industrial installations, where large short-circuit currents may occur, we recommend circuit breakers with a high short-circuit capacity. Recently, during the modernization of a production plant, we used ABB circuit breakers with a short-circuit capacity of 25 kA.

The number of poles of the circuit breaker depends on the type of circuit being protected. Single-pole circuit breakers are used for single-phase circuits. Three- or four-pole circuit breakers are necessary in three-phase installations. The rated voltage must be selected for the installation voltage. In typical low-voltage installations, circuit breakers for a voltage of 230/400 V are used.

Additional accessories and solutions for circuit breakers

In addition to the switches themselves, Onninen's offer includes a number of additional accessories:

• Current and voltage releases
• Insulating holders for inserts
• Mounting rails
• Seals and adapters

These elements allow the switches to be adapted to the specific requirements of the installation and facilitate their installation and operation.

In everyday practice, we often come across questions about the use of releases. Current releases enable remote tripping of the circuit breaker when a given current is exceeded. This is useful in energy management systems. Voltage releases, on the other hand, respond to voltage drops or increases. They protect sensitive devices from damage.

Insulating holders for fuse links are an element that increases service safety. They allow safe replacement of fuse links under voltage. In the case of switchboards in hard-to-reach places, such a solution significantly facilitates service work. Recently, during the modernization of a transformer station, we used ETI insulating holders. This significantly improved the ergonomics of the work of maintenance services.

Mounting rails are an element that facilitates the installation of circuit breakers in switchboards. We offer rails in various lengths and designs. For switchboards exposed to vibrations, we recommend rails with additional damping elements. In the case of expansion of existing installations, adapters are useful for mounting new circuit breakers on older types of rails.

Our experience shows that the right choice of accessories is crucial for the functionality and reliability of the installation. At Onninen, we offer comprehensive advice in this area. Our specialists will help you choose the optimal set of switches and accessories for your specific project.

We invite you to contact our technical advisors. We will help you choose the right circuit breakers and accessories for your installation.   Thanks to our extensive experience and wide product offering, we are able to offer optimal solutions for each project.