Descargadores de sobretensiones para energía fotovoltaica

We’re offering a wide assortment of surge arresters for various applications: for protection in photovoltaics, for vision systems, for protecting power supply lines, for Fieldbus, for protecting LED, for RF and scale systems.

What is power surge protection?

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We’re offering a wide assortment of surge arresters for various applications: for protection in...

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Products that are marked "On Order" in the "Available Quantity" column are usually not in stock. Such products are available for purchase, however, due to their limited customer base, they usually have higher minimum quantities. DACPOL offers products that are not in stock for the following reasons: DACPOL currently has a large number of electronic components in stock and adds new products every day, however, tens of thousands of additional components and their various variants are available from our suppliers. Even though it is unreasonable to have all these products in stock due to the limited sales, we believe that it is in the best interest of our customers to make them available. Our goal is to inform customers about the maximum number of products available and enable them to make decisions based on specifications, prices, availability, required minimums and our technical advice. Please note that selecting the "In Stock" checkbox may limit the display to only products available for delivery straight from the shelf.

We’re offering a wide assortment of surge arresters for various applications: for protection in photovoltaics, for vision systems, for protecting power supply lines, for Fieldbus, for protecting LED, for RF and scale systems.

What is power surge protection?

Power surge protection is a device, which goal is to protect electrical devices from surges. These devices limit the following current. Surges are created during lightning strikes in power electronic lines or in case of turning off the aerial line. Surges can lead to damages of insulation and other elements.

We distinguish the following types of surge arresters:

  • Type 1 – protects from direct and close lightning strikes; installed at the beginning of the installation, powered from cable system or aerial system e.g. main switchgear nn.
  • Type 2 – protects the majority of receivers from commutation surges and reduced surges by surge arresters type 1; protects installation from potential causes of surges, created due to lightning strikes or connection processes in power electronic systems.
  • Type 3 – protects especially sensitive/expensive electrical and electronic devices; their task is to protect sensitive receivers from surges, which were reduced at previous protection levels.