Fusibles

We’re offering an extensive assortment of passive components, such as capacitors, resistors, fuses, and filters. We’re delivering various types of fuses, including miniature fuses for electronic circuits, tubular fast-acting fuses,...

We’re offering an extensive assortment of passive components, such as capacitors, resistors, fuses,...

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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.
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picture_as_pdf FWH-007A6F Bezpiecznik szybki EATON Bussmann FWH-007A6F Fusible rápido MÍRALO FWH-007A6F On Order 7:00 AM -- 500 V aR
picture_as_pdf FUSES DE TRATAMIENTO DE SERERII 170M, 2000VDC, de 20A a 600A EATON Bussmann FUSES DE TRATAMIENTO DE SERERII 170M, 2000VDC, de 20A a 600A MÍRALO -- On Order -- -- -- --
picture_as_pdf Fusibles de tracción de Sererii 170m, 2400VDC, de 100 a 400A EATON Bussmann Fusibles de tracción de Sererii 170m, 2400VDC, de 100 a 400A MÍRALO -- On Order -- -- -- --
-- Fusibles rápidos con... EATON Bussmann Fusibles rápidos con clasificación de 1500 VDC disponibles en varios tamaños de carcasa MÍRALO -- On Order -- -- -- --
-- Insertos de fusibles... EATON Bussmann Insertos de fusibles rápidos de 180D con extremos planos MÍRALO -- On Order -- -- -- --
-- FWP - 10 x 38 mm, gR, 690 V... EATON Bussmann FWP - 10 x 38 mm, gR, 690 V AC (IEC), 4 A to 32 A MÍRALO -- On Order -- -- -- --
-- FWP - 14 x 51 mm, gR, 690 V... EATON Bussmann FWP - 14 x 51 mm, gR, 690 V AC (IEC), 4 A to 50 A MÍRALO -- On Order -- -- -- --
-- FWP - 22 x 58 mm, gR, 690 V... EATON Bussmann FWP - 22 x 58 mm, gR, 690 V AC (IEC), 20 A to 100 A MÍRALO -- On Order -- -- -- --
-- FWK - 20 x 127 mm i 25 x... EATON Bussmann FWK - 20 x 127 mm i 25 x 146 mm, 750 V DC (IEC), 5 A to 60 A MÍRALO -- On Order -- -- -- --
-- FWJ - 14 x 67 mm, 1000 V AC... EATON Bussmann FWJ - 14 x 67 mm, 1000 V AC / 800 V DC (UL), 20 A to 30 A MÍRALO -- On Order -- -- -- --
-- FWL - 20 x 127 mm, 1200 V... EATON Bussmann FWL - 20 x 127 mm, 1200 V AC / 1000 V DC (IEC), 20 A to 30 A MÍRALO -- On Order -- -- -- --
picture_as_pdf FWH-015A6F Bezpiecznik szybki EATON Bussmann FWH-015A6F Fusible rápido MÍRALO FWH-015A6F 10 15 A -- 500 V aR
picture_as_pdf FWH-016A6F Bezpiecznik szybki EATON Bussmann FWH-016A6F Fusible rápido MÍRALO FWH-016A6F On Order 16 A -- 500 V aR
picture_as_pdf FWH-005A6F Bezpiecznik szybki EATON Bussmann FWH-005A6F Fusible rápido MÍRALO FWH-005A6F On Order 5:00 AM -- 500 V aR
picture_as_pdf FWH-002A6F Bezpiecznik szybki EATON Bussmann FWH-002A6F Fusible rápido MÍRALO FWH-002A6F On Order 2:00 AM -- 500 V aR
-- FWS - 20 x 127 mm, 1400 -... EATON Bussmann FWS - 20 x 127 mm, 1400 - 2000 V AC / 1000 V DC (IEC), 2 A to 15 A MÍRALO -- On Order -- -- -- --
picture_as_pdf FWH-001A6F Bezpiecznik szybki EATON Bussmann FWH-001A6F Fusible rápido MÍRALO FWH-001A6F On Order 1:00 AM -- 500 V aR
picture_as_pdf CH141D Podstawa bezpiecznikowa EATON Bussmann Base de fusibles CH141D MÍRALO CH141D On Order 50 A Do bezpieczników 14x51 mm 690 V --
picture_as_pdf CH221B Podstawa bezpiecznikowa EATON Bussmann Base de fusibles CH221B MÍRALO CH221B On Order 125 A Do bezpieczników 22x58 mm 690 V --
picture_as_pdf CH223B Podstawa bezpiecznikowa EATON Bussmann Base de fusibles CH223B MÍRALO CH223B On Order 125 A Do bezpieczników 22x58 mm 690 V --
picture_as_pdf CHM3D Podstawa bezpiecznikowa EATON Bussmann Base de fusibles CHM3D MÍRALO CHM3D On Order 32 A Do bezpieczników 10x38 mm 690 V --
picture_as_pdf FWH-6.30A6F Bezpiecznik szybki EATON Bussmann FWH-6.30A6F Fusible rápido MÍRALO FWH-6.30A6F On Order 6,3 A -- 500 V aR
picture_as_pdf FWH-3.15A6F Bezpiecznik szybki EATON Bussmann FUSH-3.15A6F FUSE FUSE MÍRALO FWH-3.15A6F On Order 3,15 A -- 500 V aR
picture_as_pdf FWH-12.5A6F Bezpiecznik szybki EATON Bussmann FWH-12.5A6F Fusible rápido MÍRALO FWH-12.5A6F On Order 12,5 A -- 500 V aR
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We’re offering an extensive assortment of passive components, such as capacitors, resistors, fuses, and filters. We’re delivering various types of fuses, including miniature fuses for electronic circuits, tubular fast-acting fuses, time-delay fuse links, traction fuses, high-voltage fuse links.

What are fuses used for?

Fuses are intended for protecting electrical receivers from overloads and short circuits. They’re equipped with fuse elements, which are burnt after overload or short circuit in a protected circuit. All fuses are constructed similarly and consist of: fuse elements, filler, enclosure, and contacts. The Fuse element has properly shaped constrictions, shaping its time-current characteristics and is welded on the fuse’s constrictions. The Fuse element is covered with a filler extinguishing electrical arc. Filler’s function is often played by a special quartz sand. The whole construction is placed in a ceramic enclosure called corpus. 

What are basic fuse’s parameters?

Basic parameters of fuses are:

  • Alternating current IN [A] – max value of continuous current in given work conditions. AC value is provided on every fuse.
  • Alternating voltage UN [V] – max allowed working voltage value of a fuse.
  • Joule integral I2t [A2s] – max amount of energy needed to burn the fuse.
  • Switch-off ability [A] – value of expected short circuit current, which the fuse can turn off with AC and a given surrounding temperature.
  • Diffusing power [W] – power of waste created in the fuse insert during AC flow.
  • Pre-arc time [s] – time between the moment of fuse current with an enough value to cause a turn off and a moment of arc ignition.
  • Arc time [s] – time between arc’s ignition and fuse ignition.
  • Switch-off time [s] – sum of periods of pre-arc and arc.

The time of fuse’s burning depends on the current’s value and is the smaller, the higher is the overloading current. This time for a given current can be read from the time-current characteristics, presenting average turn off periods depending on the expected short circuit or overloading current.

In terms of a type of time-current characteristics, we divide fuses into:

  • aR – ultrafast non-full-range fuses for protection of semiconductor power devices protecting only from short circuits.
  • gR – ultrafast full-range fuses for protection of semiconductor power devices protecting only from short circuits and overloading.
  • gL/gG – slow-acting full-range fuses for protection of electrical receivers and cables.
  • aM – non-full-range fuses for protection of electric engines.
  • gTr – full-range fuses for protection of transformers.

Applications of fuses:

  • protection of cables;
  • protection of electrical receivers;
  • protection of transformers;
  • protection of electrical engines;
  • protection of condensers;
  • protection of semiconductor power devices: diodes, IGBT transistors, thiristors;
  • protection of electronic devices: soft-starts, inverters, rectifier;
  • protection of SN transformers, voltage inverters and SN engines.