The Bourns model 1210 Series is a heavy duty surge protective device (SPD) designed to protect high risk electrical service entrance and branch panels. This SPD is intended to be installed at the front end of the installation, in the main switchboard, close to sensitive terminals or in installations without LPS (lightning rods).
Additional Info: Dimensions: 3.543x0.709x2.638 in. (90x18x67mm), Operating Temperature: -50 to 85 deg C