device: 7SS85 busbar protection CU: 20 zones housing type: flush mounting; BI: 31; BO: 27 (27ST + 0F + 0HS + 0P); I: 0 (protection); U: 0 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 2/3 x 19''; modules in 19" row 1: IO 207, PS201, IO205, CB202; modules in 19" row 2: ; LEDs/push-buttons: 32 LEDs; operation panel: integrated; key switch: without; display type: large display; front design: standard; auxiliary voltage: 60 V - 250 V DC, 100 V - 230 V AC; redundant power supply: no