device: 7VK87 breaker management device housing type: flush mounting; BI : 7; BO: 14 (6ST + 8F + 0HS + 0P); I: 4 (protection); U: 4 ( standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 1/2 x 19''; modules in 19" row 1: IO 208, PS201, PS204; 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: yes