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TUBE ZnO VARISTOR

TUBE ZnO VARISTOR

TUBE ZnO VARISTOR

Product catalog summary
Description
  • The Tube ZnO Varistor is a patented device designed to increase the active surface area to approximately 600 cm2, suitable for severe operating conditions.

Advantages
  • Cost-effective solution.
  • Technical characteristics validated through informal testing.

Features
  • Available in various sizes with diameters ranging from 10-200 mm and heights from 10-100 mm.
  • Operating voltage ranges from 150V to 680V (Vrms) and 200V to 900V (Vdc).
  • Can operate at temperatures up to +85°C.
  • Offers a broad range of current and energy handling capabilities.
  • Composed of lead-free components.
  • Custom dimensions and operating voltages available upon request.

Application Fields
  • Wireless networks.
  • Wind and solar power plants.
  • Defense facilities, airports, and other critical industrial networks.

Test Example
  • A tube varistor with a diameter of 60mm and height of 100mm (approximately 180 cm2) successfully passed 10x 27.5kA surge current wave tests (10/350) and complied with EN 50539-11 standards.

Protection and Specifications
  • Protection class: Class 1.
  • Nominal operating AC voltage: 277V.
  • Maximum continuous operating AC voltage: 520V.
  • Impulse discharge current (10/350): 27-30kA (10x).
  • Impulse discharge current (8/20): More than 200kA.
  • Dimensions for tested model: Outer diameter 60mm, inner diameter 51mm, height 100mm.
  • Weight for tested model: 0.6kg.
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Catalog excerpts

TUBE ZnO VARISTOR-1

KEKOVARICONTUBE ZnO VARISTOR DESCRIPTION • Patented • Tubular varistor allows increasing the active surface area (approximately 600 cm2), even in the most severe operating conditions varistor is the specific load surface area within the limits provided by the technical base line. • Price competitive. • Technical characteristics were confirmed by informal tests. FEATURES Model size available • Diameter 10-200 mm • Operating voltage range Vrms 150V to 680V • Operating voltage range Vdc 200V to 900V • Operating temperature +85C • Broad range of current and energy handling capabilities • Lead free components On customer request also available other dimension size and operating voltage. APPLICATION FIELDS • wireless networks • wind and solar power plants • defense facilities, airports, and • other critical industrial networks TEST EXAMPLE: Tube varistor Protection class Class 1 Nominal operating AC voltage (U) 277V Max continuous operating AC voltage (U) 520V Impulse discharge current 10/350 27-30kA (10x) Impulse discharge current 8/20 More than _200kA Dimensions outer Diameter (for tested model) 60mm Dimensions inner Diameter (for tested model) 51 mm Dimensions Height (for tested model) 100mm Weight (for tested model) 0,6kg • Tube varistor with size: diameter 60mm, height 100mm (cca180cm2) has passed 10x 27,5kA (surge current wave 10/350) and the test according to EN 50539-11. This product protect applications from electrical damage caused by lightning surges and electrical over voltage events.

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TUBE ZnO VARISTOR-2

KEKO VARICON D.O.O. - GRAJSKI TRG15, SI-8360 - ZUZEMBERK, SLOVENIA - T: +386 7 3885-178 - F: +386-7-3885-158

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.