Siemens SIMATIC PANEL PC 877 - Manual (Page 46)

Connecting
6.2 Connecting the 100 V to 240 V AC power supply
SIMATIC Panel PC 877
6-4
Operating instructions, Release 07/2006, A5E00877780-01
6.2
6.2
Connecting the 100 V to 240 V AC power supply
General connection information
Note the following in order to operate the device safely and according to regulation:
Note
Voltage range
The power supply module is designed for operation on 100 to 240 V AC networks. The
device adjusts automatically to the voltage.
Notice
Risk of damage
Do not connect or disconnect power and data cables during thunderstorms.
Notice
Power supply network
The device is designed for operation on grounded power supply networks (TN systems to
VDE 0100, Part 300, or IEC 60364-3).
It is not permissible for operation on ungrounded or impedance-grounded power networks
(IT networks).
Notice
Permitted mains voltage
The local rated voltage must be within the voltage range of the device.
Notice
Power disconnection
The built-in switch does not disconnect the device from mains. The mains connector on the
device must be disconnected to fully isolate the device from mains. The mains connector
must be easily accessible.
If this cannot be guaranteed, in cabinet installation, for example, or the mains connector
clamp is used, an easily accessible power switch must be built into the device.