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Overvoltage Protection Device

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The overvoltage protection device is used for measurement and protection units in single and three-phase derivations equipment, magnetothermic breakers and differential current releaser equipped, reglable or fixed.
TECHNICAL CHARACTERISTICS
·Rating supply voltage U(n) 220Vac-15%..+10%
·Rating frequency 50Hz±5%
·Differencial device action voltage U(a) 270V±10V
·Differencial device releasing maximal time t(d) 0,2sec.
·Maximal repose current at action voltage value I(a) 1mA
ENVIRONMENTAL CONDITIONS
·Climatic zone N
·Temperature range -25 deg.C...+55 deg.C
·Relative humidity of air max.90% at 20 deg.C

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