device: 7SA87 distance protection, 1-/ 3-pole housing type: flush mounting; BI : 203; BO: 89 (73ST + 16F + 0H S + 0P); I: 8 (protection); U: 8 ( standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 1 x 19'' + 5/6 x 19''; modules in 19" row 1: IO 208, PS201, IO205, IO208, IO20 5, IO205; modules in 19" row 2: PS 203, IO230, IO230, IO205, IO23 0; LEDs/push-buttons: 32 LEDs; operation panel: integrated; key switch: with; display type: large display;