Device: 7VK87 Switch management device Housing type: flush-mounted; BI: 27; BO: 33 (17ST + 16F + 0HS + 0P); I: 8 (protective); U: 8 (standard); Transmitter inputs: 0 (20 mA or 10 V, fast), 0 (20 mA, normal); Housing width: 2/3 x 19''; 19" bay unit 1: IO 208, PS201, IO208, IO207; 19" bay unit 2:; LEDs/buttons: 16 LEDs; Operator panel: integrated; Key switch: without; Display type: small display; Front design: standard; Auxiliary voltage: DC 60 ... 250 V, AC 100 ... 230 V