ABB3HAC025057-001

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Email: sales15@amikon.cn  / Skype:+8617359287459

ABB 3HAC025057-001

 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.

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