device: 7SS85 busbar protection 2 zones, 4 fields included housing type: flush mounting; BI: 71; BO: 69 (51ST + 18F + 0HS + 0P); I: 28 (protection); U: 0 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 1 x 19'' + 2/3 x 19''; modules in 19" row 1: IO 203, PS201, IO201, IO203, IO20 3, PS204; modules in 19" row 2: PS 203, IO231, IO231, PS204; LEDs/push-buttons: 64 LEDs; operation panel: integrated; key switch: without; display type: large display; front design: standard;