Plug-in part P-HMS 280, protective element: zinc oxide varistor with thermal disconnection and monitoring device, housing colour: blue, function display: green / blue (defect), plug-in part coding, spare part for the following devices: P-HMS 280 (order no. 307 200), P-HMS 280 DP (order no. 307 205), P-HMS 280 2 (order no. 307 220), P-HMS 280 DP 2 (order no. 307 225), P-HMS 280 1+1 (order no. 307 210), P-HMS 280 DP 1+1 (order no. 307 215), P-HMS 280 3 (order no. 307 230), P-HMS 280 DP 3 (Best, No. 307 235), P-HMS 280 4 (Best, No., 307 250), P-HMS 280 DP 4 (Best, No., 307 255), P-HMS 280 3+1 (Best, No., 307 240), P-HMS 280 DP 3+1 (Best, No., 307. 245)
