device: 7SS85 busbar protection 2 zones, 4 fields included housing type: flush mounting; BI: 27; BO: 19 (11ST + 8F + 0HS + 0P); I: 16 (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, IO203, IO203; modules in 19" row 2: ; LEDs/push-buttons: 16 LEDs; operation panel: integrated; key switch: without; display type: small display; front design: standard; auxiliary voltage: 60 V - 250 V DC, 100 V - 230 V AC; redundant power supply: no