PROTECTION RANGE --- Installed on a low-voltage power line for first, second, and third-level -Pattern protection and surge protection. BASIC PARAMETER OF VOLTAGE --- This house surge protective device is only suitable for DC 420V 40KA EASY TO INSTALL --- This arrester device is made of high quality material, with long serving life, It has the characteristic of stable performance, and easy to install APPLICATION IN --- Protect electric system and on-loading electrical apparatus from thunder and instantaneous over-voltage. Rated voltage: 220v Model: 2p 40kA : ~ 420 v UP: less than 2.0KV Number of poles: 2 colour: white Material: ABS Size: 9x6cm Package Contents: 1 x Arrester Device Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.