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Operating Instructions (compact)
1.6 Connecting
Note
Power factor correction
The power supply contains an active PFC (Power Factor Correction) circuit to conform to the
EMC directive.
Uninterruptible AC power supplies (UPS) must supply a sinusoidal output voltage in the
normal and buffered mode when used with SIMATIC PCs with 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
For the USA and Canada
A UL-listed power supply cable must be used in the United States and Canada.
Power cables are provided as an accessory for the specific country of delivery.
• 110 V supply voltage
• 230 V supply voltage
For countries other than the USA and Canada
• 230 V supply voltage
1-14
Use a flexible power cable with UL approval and the following features: Type SJT with
three leads, min. 18 AWG conductor cross-section, max. 4.5 m long and parallel
grounding plug 15 A, min. 125 V.
Use a flexible power cable with UL approval and the following features: Type SJT with
three leads, min. 18 AWG conductor cross-section, max. 4.5 m long and tandem
grounding plug 15 A, min. 250 V.
This device is equipped with a safety-tested power cable which may only be connected to
a grounding 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 grounding
plug. The cable set must be compliant with the safety regulations and stipulated IDs of
the country where the system is to be installed.
Operating Instructions, Release 04/2006, A5E00795255
SIMATIC Panel PC 577
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