Power Supply Unit; Table 10: Wago Power Supply Units (Selection) - WAGO 750-370 Manual

36 System Description
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3.6.6

Power Supply Unit

The WAGO-I/O-SYSTEM 750 requires a 24 VDC voltage (system supply).
Recommendation
A stable power supply cannot always be assumed everywhere. Therefore, you
should use regulated power supplies to ensure the quality of the supply voltage
(see also table "WAGO power supply units").
For brief voltage dips, a buffer (200 µF per 1 A load current) must be provided.
Power failure time not acc. IEC 61131-2!
Note that the power failure time of 10 ms acc. IEC 61131-2 is not maintained in a
maximum configuration.
The power demand must be determined individually depending on the entry point
of the field supply. All loads through field devices and I/O modules must be taken
into account. The field supply also impacts the I/O modules because the input and
output drivers of some I/O modules require the voltage of the field supply.
System and field supply must be isolated!
The system supply and field supply must be isolated to ensure bus operation in the
event of short circuits on the actuator side.

Table 10: WAGO Power Supply Units (Selection)

WAGO Power
Supply Unit
787-612
787-622
787-632
288-809
288-810
288-812
288-813
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Description
Primary switched mode;
DC 24 V; 2,5 A Input nominal voltage AC 230 V
Primary switched mode;
DC 24 V; 5 A Input nominal voltage AC 230 V
Primary switched mode;
DC 24 V; 10 A Input nominal voltage AC 230/115 V
Rail-mounted modules with universal mounting carrier
AC 115 V/DC 24 V; 0,5 A
AC 230 V/DC 24 V; 0,5 A
AC 230 V/DC 24 V; 2 A
AC 115 V/DC 24 V; 2 A
WAGO-I/O-System 750
750-370 PROFINET IO Fieldbus Coupler
Manual
Version 2.0.0