Data sheet 6ES7278-4BD32-0XB0 SIMATIC S7-1200, SM1278 IO-LINK, 4 X IO-LINK MASTER Supply voltage Rated value (DC) Yes 24 V DC permissible range, upper limit (DC) 28.8V Power loss Power loss, typ. 1W Interrupts/diagnostics/status information Diagnostic functions Yes Degree and class of protection Degree of protection acc. to EN 60529 Yes IP20 Standards, approvals, certificates FM approval Yes RCM (formerly C-TICK) Yes Ambient conditions Free fall 0.3m five times, in dispatch package Fall height, max. 6ES7278-4BD32-0XB0 Changes preserved 25.01.2016 Copyright Siemens AG Page 1/2Ambient temperature during operation -20 C to +60 C horizontal mounting, -20 C to 50 C vertical permissible temperature range mounting, 95% humidity, non-condensing 5C to 55C, 3C / minute permissible temperature change Ambient temperature during storage/transportation -40C min. 70C max. Air pressure acc. to IEC 60068-2-13 660hPa Storage/transport, min. 1080hPa Storage/transport, max. Relative humidity 95 % permissible range (without condensation) at 25 C Connection method required front connector Yes Mechanics/material Enclosure material (front) Yes Plastic Dimensions Width 45mm Height 100mm Depth 75mm Weights Weight, approx. 150g last modified: 22.01.2016 6ES7278-4BD32-0XB0 Changes preserved 25.01.2016 Copyright Siemens AG Page 2/2