ABB SD822｜Power Supply Module｜

ABB SD822 is an industrial 24 VDC power supply module designed for use with ABB automation platforms, especially AC 800M controllers and S800 I/O systems. It is part of ABB’s SD82x/SD83x family of DIN-rail mounted switch-mode power supplies.

Product Identification
Item Description
Manufacturer ABB
Model SD822
Typical Part Number 3BSC610038R1
Product Type Industrial DC Power Supply
Application AC 800M Controller / S800 I/O power supply
Mounting DIN rail
Output Voltage 24 VDC
Output Current 5 A
Output Power Approximately 120 W
Configuration Standalone or redundant power supply arrangement

Technical Specifications
Parameter Specification
Input Voltage 115 VAC / 230 VAC selectable
Output Voltage 24 VDC regulated
Rated Output Current 5 A
Output Capacity 120 W
Power Supply Type Switching mode power converter
Installation DIN rail mounting
Protection Industrial overload and short-circuit protection
Redundancy Support Yes, with ABB voter modules
Typical Systems ABB System 800xA, AC 800M, S800 I/O

Functional Description

The SD822 converts AC mains power into a stable 24 VDC supply for automation system components such as:

AC 800M controller modules
S800 I/O modules
Communication interfaces
Field power distribution circuits

The unit uses a switch-mode power conversion design to provide regulated DC output suitable for continuous industrial operation.
Common Applications
Process Industries
Power plants
Oil & gas facilities
Chemical processing
Water treatment
Automation Systems
ABB System 800xA DCS
AC 800M controller cabinets
S800 remote I/O stations
Safety and high-availability control architectures
Maintenance & Replacement Considerations

When replacing an SD822 in an operating plant:

Check before replacement:

Exact part number
SD822 vs SD822Z variants may differ by generation/configuration.
Load capacity
Confirm the 24 VDC load does not exceed 5 A.
Redundancy configuration
Verify whether an ABB voter module is installed.
Input voltage setting
Confirm the 115/230 VAC selector position before energizing.
Lifecycle status
Consider migration planning if the installed AC 800M/S800 system is approaching lifecycle limits.