Drive repair Started - varistor circuit "safety valve" effect varistor what use? Varistor is the most important feature when added on top of it is below its threshold voltage "UN" when LR-M5024PA, the current flowing through it tiny LJ30A3-15Z / BX N, equivalent to a shut valve L, when the voltage exceeds UN when D-Y7BWSDPC, the surge current flowing through it, the equivalent of the valve opens. Using this feature, you can suppress the circuit often appear abnormal over-voltage, over-voltage protection circuit from damage. 6ES5095-8FB01 S5 PLC for S5-95F single redundant system, no manual LJ18A3-8-J / EZ A | L | Shenyang Electric Co. on the people by the people of Shenyang. Shenyang Electric Co. on people (www.zsmsy.com) strong, credible, in other industries, such as Shenyang, Liaoning province has accumulated a large number of loyal customers. The company better work attitude and constantly improving people and innovative ideas will lead you to walk hand in hand on the Shenyang brilliant, for a better future!