3-8
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System description
3.3.3 Potential equalisation connection
The DUOLITH
®
SD1 features a potential equalisation connection.
• Connect one end of the potential equalisation cable to the PE connection on the
DUOLITH
®
SD1 and the other end to your PE connection.
Fig. 3-7 Potential equalisation connection
3.3.4 Electrical connection
The device can be operated on a mains voltage of 230 V or 115 V.
ATTENTION!
Damage to the device may occur if the voltage setting on the device does not
match the local mains voltage.
Make sure that the device is operated with the correct mains voltage.
Checking the mains voltage
• Check the mains voltage setting on the voltage selector switch on the rear of the
device. On delivery, the device is usually congured for operation using a mains
voltage of 230 V .
Fig. 3-8 Voltage selector switch