2.2 Installation
2.2.1 Dimensions
226
49
140.8
Dimensions in mm 142 x 226 x 49 (W x H x D)
2.2.2 MountingPositionandAmbientTemperature
Module holders are usualy mounted on a vertical surface, in which case I/O con-
nections to modules are also vertical. With this mounting position, an ambient
temperature between 0 °C and 55 °C is permissible.
Vertical mounting should be preferred. All other positions are less favourable to air
circulation, so their ambient temperature should not exceed 40°C