Siemens SIMATIC HMI IPC677C Operating Instructions Manual page 47

Note
The power supply contains an active PFC (Power Factor Correction) circuit to conform to the
EMC guidelines.
Uninterruptible AC power systems (UPS) must supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC PCs 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-....".
Localized information
For countries other than the USA and Canada:
230 V supply voltage
This device is equipped with a safety-tested power supply cord which may only be
connected to a grounded safety power outlet. If you choose not to use this cable, you must
use a flexible cable of the following type: Min 18 AWG conductor cross-section and 15-A /
250-V shockproof connector. The cable set must be compliant with the safety regulations
and stipulated IDs of the country where the system is to be installed.
For the USA and Canada:
For the United States and Canada, a CSA or UL-listed power supply cord must be used.
The connector must be compliant with NEMA 5-15.
120 V supply voltage
A flexible cable with UL approval and with CSA label which has the following features is to
be used: Type SJT with three leads, min. 18 AWG conductor cross-section, max. 4.5 m in
length and parallel ground contact connector 15 A, min. 125 V.
240 V supply voltage
A flexible cable with UL approval and with CSA label which has the following features is to
be used: Type SJT with three conductors, min. 18 AWG conductor cross-section, max.
length 4.5 m, and tandem grounded connector 15 A, min. 250 V.
SIMATIC HMI IPC677C
Operating Instructions, 04/2013, A5E02722710-04
5.2 Connecting the 100 - 240 V AC Power Supply
Connecting
47