Product specifications

Appendix A Hardware Units Power Supply Units - Types SD831, SD832, SD833, and SD834
3BSE036351-510 A 367
Power Supply Units Types SD831 / 832 / 833 / 834- Description
ABB recommend the use of robust and reliable power supply units, (PSUs), for
providing power to the AC800 and S800I/O system, when connected to an industrial
mains network of installation category III. PSUs can be used for both non-redundant
and redundant applications.
The four PSUs are designed as switch mode power converters. They converting a.c.
or d.c. mains supply voltage to a regulated d.c. 24 V output. The four PSUs have
data as follows:
– SD831 = Input a.c. 100-240 V or d.c. 110-300 V.
Output d.c. 24 Volts regulated @ 3 A.
– SD832 = Input a.c. 100-120 or 200-240 V.
Output d.c. 24 Volts regulated @ 5 A
– SD833 = Input a.c. 100-120 or 200-240 V.
Output d.c. 24 Volts regulated @ 10 A
– SD834 = Input a.c. 100-240 V or d.c. 110-300 V.
Output d.c. 24 Volts regulated @ 20 A
The output voltage of the four PSUs is, as stated, a regulated, low noise, d.c. 24 V. A
LED, mounted on the PSU front panel indicates that the output voltage is within
range.
The PCS´s provide a soft start feature. The controlled power-on of a PSU therefore,
will not trip fuses or earth-fault circuit breakers. In addition, the normal
disturbances that occur within an industrial main network will not cause any
transient fault conditions or trips to occur.