General technical data of SIPLUS S7-400

Ambient temperature range

-25/0 ... +60/70 °C

Conformal coating

Coating of the printed circuit boards and the electronic components

Technical data

The technical data of the standard product applies except for the ambient conditions.

Ambient conditions:

Extended range of environmental conditions

• with reference to ambient temperature, air pressure and altitude

Tmin ... Tmax at 1080 hPa ... 795 hPa (-1000 m ... +2000 m) //
Tmin ... (Tmax - 10K) at 795 hPa ... 658 hPa (+2000 m ... +3500 m) //
Tmin ... (Tmax - 20K) at 658 hPa ... 540 hPa (+3500 m ... +5000 m)

• At cold restart, min.

0° C

Relative humidity

• with condensation, max.

100 %; RH incl. bedewing/frost (no commissioning in bedewed state)

Resistance

• to biologically active substances/compliance with EN 60721-3-3

Yes; Class 3B2 mold and fungal spores (except fauna); the supplied plug covers must remain in place on the unused interfaces during operation.

• to chemically active substances/compliance with EN 60721-3-3

Yes; Class 3C4 (RH < 75%) incl. salt spray in accordance with EN 60068-2-52 (severity 3); the supplied plug covers must remain in place on the unused interfaces during operation.

• to mechanically active substances, compliance with EN 60721-3-3

Yes; Class 3S4 incl. sand, dust; the supplied plug covers must remain in place on unused interfaces during operation.