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ABB INDUSTRIAL AUTOMATION
ABB DSSR122 48990001-NK 40A DC Power Supply Unit
A regulated rack power supply for ABB Advant Master systems, converting 24V DC input to stable 5V DC at up to 40A for control-system electronics.
PRODUCT PROFILE
System family
ABB Advant Master
Device class
DC power supply unit
Control role
Rack power conversion
Availability
Limited stock
Official technical data
Manufacturer
ABB
Product ID
48990001-NK
Type designation
DSSR122
Module class
DC power supply
Input
24V DC
Output
5V DC regulated
Output current
40A
Installation
Advant system rack
Spare fuse
20A
Country of origin
Sweden
System family
Advant Master / OCS
Product role
Rack electronics power
Installation & Upgrades
01 · Record
De-energize the rack, record cable polarity and confirm discharge before removal.
02 · Match
Verify DSSR122 identity, input source, output loading and compatible rack position.
03 · Commission
Reconnect with correct torque, energize and confirm stable 5V output under load.
Compatibility & Interoperability
System integration
Designed for supported ABB Advant Master and Advant OCS rack architectures.
Hardware matching
Confirm input voltage, rack wiring and total 5V load before replacement.
Revision control
Used as a controlled upgrade or exchange for documented predecessor supplies.
Brand characteristics
ABB Advant power modules use defined article identities, regulated outputs and documented rack integration for reliable control-system service.
Power stability
Regulated 5V output supports sensitive controller and I/O electronics.
Rack integration
Purpose-built mechanical and electrical interfaces simplify replacement.
Lifecycle support
Documented exchange paths help maintain legacy Advant installations.
Application fields
DSSR122 provides rack power conversion where ABB Advant Master and related control hardware remain in active service.
Process control
Stable rack power for continuous and batch automation systems.
Plant utilities
Supply support for auxiliary control and monitoring equipment.
Lifecycle maintenance
Replacement of aging power modules during planned outages.
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01 · IDENTIFY
Provide the complete DSSR122 identity, installed system and required quantity.
02 · VERIFY
Confirm hardware revision, system compatibility, wiring or connectors and current configuration.
03 · QUOTE
Review pricing, lead time, warranty and delivery terms for the requested quantity.
04 · DISPATCH
Complete order checks, protective packing and destination-based shipment planning.
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