If the protection against direct contact according to DIN

VDE 0160 is required, this has to be ensured by the user

(e.g. by incorporating the elements in a switch-gear cabinet). The devices are designed for pollution severity 2 in

accordance with DIN VDE 0110 Part 1. If higher pollution

is expected, the devices must be installed in appropriate

housings.

The user has to guarantee that the devices and the components belonging to them are mounted following these

regulations. For operating the machines and installations,

other national and international relevant regulations, concerning prevention of accidents and using technical working means, also have to be met.

Devices of Advant Controller 31 Series (AC31) are designed according to IEC 1131 Part 2. Meeting this regulation, they are classified in overvoltage category II which is

in conformance with DIN VDE 0110 Part 2.

For the direct connection of AC31 devices, which are powered with or coupled to AC line voltages of overvoltage

category III, appropriate protection measures corresponding to overvoltage category II according to IEC-Report 664/

1980 and DIN VDE 0100 Part 1 are to install.