Siemens SIMATIC IPC477D Operating Instructions Manual page 58

Mounting and connecting the device
3.4 Connecting the device
Note
Power disconnection
The power plug must be unplugged to fully isolate the device from mains. This location must
be easy to access. There must be a central disconnector switch if the device is mounted in a
control cabinet.
Always ensure that the socket on the device is freely accessible or that the grounding-type
receptacle of the building installation is freely accessible and located as close as possible to
the device.
Note
The power supply contains an active PFC (Power Factor Correction) circuit to conform to the
EMC guidelines.
Uninterruptible AC power supplies (UPS) must supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC IPCs with an active PFC.
UPS characteristics are described and classified in the standards EN 50091-3 and
IEC 62040-3. Devices with sinusoidal output voltage in the normal and buffered mode are
identified with the classification "VFI-SS-...." or "VI-SS-....".
Country-specific connection information
USA and Canada
For the United States and Canada, a CSA or UL-listed power supply cord must be used. The
connector must conform to NEMA 5-15.
Country-specific power supply cords are available as accessories.
● 100 V supply voltage
Use a flexible cable with UL approval and CSA mark and the following features:
– Type SJT with three conductors
– Conductor cross-section at least 18 AWG, ≤ 4.5 m in length
– Parallel grounding-type plug 15 A, at least 125 V
● 240 V supply voltage
Use a flexible cable with UL approval and CSA mark and the following features:
– Type SJT with three conductors
– Conductor cross-section at least 18 AWG, ≤ 4.5 m in length
– Tandem grounding-type plug 15 A, at least 250 V
For countries other than the USA and Canada:
● 240 V supply voltage
This device is equipped with a safety-tested power supply cord and may only be
connected to a grounded power outlet. If this power cord is not used, a flexible cable with
a conductor cross-section of at least 18 AWG must be used. The set of cables must
conform to the safety regulations of the country in which the device is installed and bear
the marks required in each case.
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SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 07/2015, A5E31347228-AD