ERZB32SK602F

ÒZNRâÓ Arrester Blocks (Type S) ÒZNRâÓ Arrester Blocks Type: S ZNR Arrester Block is mounted in the lightning arresters or the lightning protection devices in high voltage power distribution and protects the power distribution apparatus from lightning or switching surges. ZNR Arrester Block is a high voltage block improved in its material and manufacturing process to secure the long term stability. n Recommended Application n Features l Lightning arrester l Lightning arrester in power apparatus (transformers, primary cutout switches, insulators, disconnectors, switches) l Simplified lightning arrester l No series gap is required because of the excellent voltage-current characteristics l Low clamping voltage and excellent protection level l Fast response to the fast steep transient voltage l No follow current l Large withstanding surge current capability Note: Contact our sales office or factory for “Precautions for Handling of the Type S” n Explanation of Part Numbers E R Z S K n Application Notes (Type S) 1) ZNR arrester blocks shall be kept in dry air after the package open. 2) ZNR arrester blocks shall be handled with care because mechanical shock such as dropping or crashing each other may cause chipping or cracking. 3) Sweat on the side surface of ZNR arrester block degrades its characteristic, and therefore handling with bare hand shall not be allowed. 4) Electrical contact to ZNR arrester block shall be done by pressing the external metal electrode. 5) ZNR arrester block shall be kept dry in the lightning arrester or device housing. 6) If you have any questions on its application, please contact and ask our office. ÒZNRâÓ Arrester Blocks (Type S) Series B, Type S n Ratings and Characteristics l Operating Temperature Range: Ð25 to 70 ûC l Storage Temperature Range: Ð25 to 100 ûC l Temperature Coefficient of Varistor Voltage: 0 to Ð0.05 %/ûC Characteristics Application ERZB28SK602 ERZB32SK602 ERZB40SK602 Class 2.5 kA Lightning Arrester Class 2.5 kA Lightning Arrester Class 5 kA Lightning Arrester Maximum Continuous Operating Voltage AC 3 kV AC 3 kV AC 3 kV Applied Voltage Ratio] 80 % 80 % 80 % Varistor Voltage V1 mA (DC) 6 kV±10 % 6 kV±10 % 6 kV±10 % Clamping Voltage V2.5 kA: 12 kV max. V2.5 kA: 12 kV max. V5 kA: 12 kV max. Short Duration (4/10 µs) Maximum Peak Current Standard Test Long Duration (2 ms) 10 kA 10 kA 20 kA 75 A 150 A 250 A Maximum Peak Current Special Test (4/10 µs) 20 kA 50 kA 65 kA MCOV ´ Ã2 ´ 100(%) V1 mA MCOV: Maximum Continuous Operating Voltage (RMS) l Varistor voltage other than 6 kV is available. Block configuration other than culumn is available on request. ] Applied Voltage Ratio = Maximum Peak Current Special Test (4/10 µs) n Dimensions in mm (not to scale) Part No. D T ERZB28SK602 29±1 31±1 ERZB32SK602 33±1 31±1 ERZB40SK602 40±1 31±1