Siemens PM330 Hardware Installation Manual page 22

Installing/Mounting
3.1 Installation conditions
General rules for protecting Power Modules against environmental effects
To ensure that the Power Module is installed in the correct environmental conditions, please
make sure that you adhere to the following guidelines:
● The Power Modules are designed:
– to be installed in an electrical cabinet
– with protection against the ingress of solid foreign objects ≥ 12.5 mm
– without protection against the ingress of water
● Furthermore, observe the following conditions:
– Ensure that the device is free of dust and dirt.
– Keep the device away from water, solvents and chemicals.
– Keep it within the maximum and minimum operating temperatures.
– Ensure that the correct level of ventilation and air flow is provided.
– Fast temperature changes of the air drawn in (e.g. by using cooling units) are not
– Ensure that all Power Modules and the cabinet are grounded according to the
It is only permissible that the Power Module is installed in a vertical position.
Protection against the spread of fire
The device may only be operated in closed housings or in control cabinets with protective
covers that are closed, and when all of the protective devices are used. The installation of
the device in a metal control cabinet or the protection with another equivalent measure must
prevent the spread of fire and emissions outside the control cabinet.
Protection against condensation or electrically conductive pollution
Protect the device, e.g. by installing it in a control cabinet with degree of protection IP54
according to IEC 60529 or NEMA 12. Further measures may be necessary for particularly
critical operating conditions.
If condensation or conductive pollution can be excluded at the installation site, a lower
degree of control cabinet protection is permitted.
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(when using a vacuum cleaner, this must comply with ESD equipment rules)
Take care to install it away from potential water hazards, for example, do not install it
beneath pipes that are subject to condensation. Avoid installing it where excessive
humidity and condensation may occur.
permitted due to the danger of condensation. Condensation is not permissible when
switching on.
guidelines given in this chapter (see Chapter Connecting up, switching on (Page 31)).
Hardware Installation Manual, 12/2018, A5E32844552B AF
Power Module PM330