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The CE-marked design provides a mains net filter for each supply A, B and C. The filter is
installed between the enclosure port and the mains power switch. The purpose is to minimize
the risk of interference and the emission of conducted radio frequency field.
The filter is adapted to the estimated load from the installed equipment.
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You use the power switch and distribution unit to connect and disconnect the
Advant Controller 450 system to the mains and for distribution of voltage to different units in
the cabinet. The power switch unit contains terminal blocks, miniature circuit breakers and
power outlets for, for example, power supply units.
Normally, a common circuit breaker disconnects the mains from all cabinets housing the
controller and the I/O installation, that is the “hard” related cabinets. Variants can exist. Please
refer to the actual delivery documentation for further information.
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The power supply units provide the regulators in the subracks with 24 V unstabilized d.c.
voltage. They can also be used to supply other circuits which do not require stabilized 24 V
voltage such as sensors, indicators, and so on.
There are certain restrictions on utilizing a common power supply for the system itself and
external equipment. Please refer to Section 3.1, Design Considerations.
Use duplicated power supply units to provide redundancy.
Varying requirements on power supply are met by a range of supply modules with different
technical data. You can select according to Table 1-12.
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SA161 a.c. 120 V 24 V, 10 A
SA162 a.c. 230 V 24 V, 10 A
SA167 a.c. 120 V 24 V, 25 A
SA168 a.c. 230 V 24 V, 25 A
SD150 d.c. 24-48 V d.c. 24 V, 20 A
SA171 a.c. 120 V 48 V, 5 A For field equipment only
SA172 a.c. 230 V 48 V, 5 A For field equipment only