NH4 fuse links

(10)

NH4 knife fuse link screw base indicator double non-insulated handle gG 800A 500VAC

NH4 knife fuse link screw base indicator double non-insulated handle gG 800A 500VAC

Hager
1
356,21 zł/pcs
LNH40800SM
HGD529
to order
NH4 knife fuse link screw base indicator double non-insulated handle gG 1000A 500VAC

NH4 knife fuse link screw base indicator double non-insulated handle gG 1000A 500VAC

Hager
1
356,21 zł/pcs
LNH41000SM
HGD532
to order
NH4 knife fuse link screw base indicator double handle non-insulated gG 1250A 500VAC

NH4 knife fuse link screw base indicator double handle non-insulated gG 1250A 500VAC

Hager
1
356,21 zł/pcs
LNH41250SM
HGD535
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 361A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 361A 400VAC

Hager
1
480,18 zł/pcs
LNH40361M4T
HGD521
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 455A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 455A 400VAC

Hager
1
486,00 zł/pcs
LNH40455M4T
HGD523
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 577A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 577A 400VAC

Hager
1
493,56 zł/pcs
LNH40577M4T
HGD525
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 722A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 722A 400VAC

Hager
1
501,72 zł/pcs
LNH40722M4T
HGD527
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 909A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 909A 400VAC

Hager
1
586,70 zł/pcs
LNH40909M4T
HGD530
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 1155A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 1155A 400VAC

Hager
1
649,82 zł/pcs
LNH41155M4T
HGD533
to order
NH4a knife fuse link, indicator double, non-insulated handle, gTr 1443A 400VAC

NH4a knife fuse link, indicator double, non-insulated handle, gTr 1443A 400VAC

Hager
1
684,48 zł/pcs
LNH41443M4T
HGD536
to order



NH4 fuse links - a key element of electrical installation protection

NH4 fuse links are essential components in electrical protection systems.   They provide protection against overloads and short circuits. At Onninen we offer a wide selection of these products. Our range includes industrial fuse links. These include both transformer and time-delay models. Each type has its own unique applications and advantages.

Selecting the right NH4 inserts is crucial for the safety of the installation. Many factors must be taken into account. These include the rated current, time-current characteristic and breaking capacity. In our daily practice, we see how important it is to have the right fit. An incorrect selection can lead to serious consequences.

Types and applications of NH4 fuse links

Onninen's offer includes various types of NH4 inserts.   Industrial fuse links - transformer protect transformers against overloads.   They are characterized by increased resistance to starting currents. In turn, delayed fuses work well in circuits with high starting currents. They are often used to protect electric motors.

Among the available brands, it is worth mentioning our own brands: Onnline and Fxa. These products combine high quality with an attractive price. In addition to them, we also offer recognized brands of external manufacturers. This provides customers with a wide selection and the ability to adapt to individual needs.

  • NH4 transformer inserts - for transformer protection
  • NH4 slow-blow inserts - ideal for protecting engines
  • NH4 Fast Inserts - for semiconductor protection

NH4 fuse link selection criteria

When choosing NH4 inserts there are several key parameters to consider.   The rated current is the basic criterion for selecting an NH4 fuse link.   It must be adapted to the load of the protected circuit. Another important aspect is the time-current characteristic. It determines the time of the fuse link operation depending on the current value.

Breaking capacity is the maximum short-circuit current that the fuse link can safely interrupt. In industrial installations, this parameter is particularly important. The rated voltage of the fuse link must be at least equal to the installation voltage. It is also worth paying attention to power loss. It affects the energy efficiency of the entire system.

At Onninen, we often come across questions about the selection of NH4 inserts. Our specialists are happy to advise on this matter. We help select the optimal solutions for specific applications. This means that customers can be sure that their installations are properly protected.

Practical applications of NH4 fuse links

NH4 inserts are widely used in industry and energy.   In large production plants, NH4 inserts protect process lines against the effects of failures.   They ensure continuity of production and safety of employees. In the power industry, they are used to protect transformers and transmission lines. They guarantee the stability of electricity supplies.

Recently, we used NH4 inserts in a project for a large logistics center. They protected the main switchboards supplying warehouse automation. Thanks to this, the risk of downtime was minimized. As a result, the customer gained a reliable and safe solution.

In the case of modernization of electrical installations, NH4 inserts are often replaced. This allows the protection to be adapted to new loads. This is especially important when expanding or changing the profile of the company's activity. The correct selection of NH4 inserts then ensures the appropriate level of protection.

  • Protection of production lines in factories
  • Protection of transformers in power stations
  • Protection of automation systems in logistics centers
  • Securing installations in public buildings

Our experience shows that regular inspection and replacement of NH4 inserts is essential. This helps to avoid unexpected failures and downtime. At Onninen, we offer not only products, but also expert advice in this area. Our experts will be happy to help you choose the right NH4 inserts.

NH4 fuse links are not only a protective element, but also an investment in the safety and reliability of the installation.   Their correct selection and use translates into real benefits for companies. They provide peace and certainty of operation of electrical systems. At Onninen, we make every effort to provide the best solutions in this field.

We invite you to contact our specialists. They will help you choose the optimal NH4 inserts for your specific needs. With a wide range of products and expert advice, Onninen is the ideal partner in the field of electrical protection.