Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | |
| ABB Order Number | 3BSE014078R1 |
| Product Type | I/O Subrack |
| Automation Platform | ABB Advant OCS |
| I/O Family | ABB I/O |
| Rack Function | I/O module mounting and backplane/interface support |
| 5 V Regulation | Single 5 V regulator |
| Rack Format | 19-inch cabinet architecture |
| Typical Cabinet | ABB RM5xx-style cabinet |
| Installation | Cabinet/subrack mounting |
| Power Architecture | Uses the associated I/O power-supply arrangement |
| Related Redundant Version | DSRF187AK02, 3BSE014079R1 |
ABB’s Advant OCS product documentation explicitly lists as an I/O subrack with a single 5 V regulator. The same ordering table distinguishes it from DSRF187AK02, which uses a redundant 5 V regulator. This distinction is important when replacing a rack in an existing power architecture.
Product Introduction
ABB 3BSE014078R1
The is an I/O subrack used in legacy ABB Advant OCS control installations. Its primary job is mechanical and electrical organization of the I/O assembly, providing the rack structure and associated 5 V regulation required by the installed I/O hardware. ABB documentation places this subrack within the I/O architecture used with Advant controller systems.
For maintenance teams, the is therefore a rack-level spare rather than an intelligent I/O module. It should not be treated as a PLC CPU, communication card, analog input board, or power-supply module. The most important procurement issue is matching the existing cabinet, I/O configuration, regulator arrangement, and associated power hardware before substitution.
DSRF182AK02 3BSE014078R1
Application Scenarios & Field Pitfalls — The Engineer’s Perspective
Engineering Pain Point
A common problem with older Advant installations is that an individual I/O board may still be available while the original rack, regulator, connector assembly, or associated power hardware has become difficult to source. Replacing the rack with a superficially similar frame can create a much bigger commissioning problem if its power architecture does not match the existing installation.
The is particularly relevant where the existing system was designed around the single 5 V regulator configuration. ABB’s documentation separately identifies DSRF187AK02 as the redundant-regulator version, so these two rack variants should not be assumed to be interchangeable simply because they belong to the same I/O family.
Typical Applications
- Power Generation: Maintaining legacy Advant OCS control and I/O cabinets associated with turbine, boiler, balance-of-plant, or auxiliary systems.
- Process Industries: Replacement of damaged or aging I/O subracks in chemical and continuous-process control systems.
- Pulp and Paper: Supporting existing Advant controller installations where modernization is being performed incrementally rather than through a complete DCS replacement.
- Legacy Plant Retrofit: Maintaining the original I/O architecture during staged migration, controller replacement, or cabinet refurbishment.
Technical Pitfalls to Avoid
- Do not confuse with DSRF187AK02.
The former is documented with a single 5 V regulator, while DSRF187AK02 is the redundant 5 V regulator configuration. Verify the existing power design before ordering a replacement. - Do not classify the rack as an S800 I/O carrier.
Current secondary listings sometimes describe this part as an AC 800M/S800 redundant I/O rack, but the older ABB Advant OCS documentation identifies as an I/O subrack. That distinction affects module compatibility, power distribution, wiring, and cabinet integration. - Verify the complete cabinet assembly, not only the rack number.
installations can include separate power supplies, regulators, connection units, cables, mounting hardware, and I/O boards. A rack replacement should be checked against the actual cabinet drawing and existing assembly before installation. - Check the complete order number.
DSRF182, , and related DSRF rack variants appear in industrial spare-parts inventories. For a plant shutdown replacement, the full ABB designation should be matched against the installed hardware rather than relying on the generic DSRF182 family number.
Related Products
- DSRF187AK02 — 3BSE014079R1: I/O subrack with redundant 5 V regulation; the key comparison when evaluating power redundancy.
- DSRF182 — 57310255-AL: Related DSRF182 I/O rack designation found in ABB equipment inventories; verify the exact assembly suffix before substitution.
- DSRF180A — 57310255-AV: Related ABB I/O equipment rack used within the broader legacy architecture.
- DSRF181A — 57310255-AX: Related I/O rack/frame variant; application and physical configuration should be checked before considering replacement.
- DSRF197K01: Another system I/O rack used in legacy ABB control installations; not a drop-in substitute without checking the rack and module configuration.
- DSSR170 — 48980001-PC: ABB 24 V-to-5 V voltage regulator associated with I/O power architecture; useful when troubleshooting rack-level power issues.
- DSSS170 — 48970001-A: Diode unit used with redundant I/O power arrangements in applicable configurations.
- DSSS171 — 3BSE005003R1: Voting unit associated with redundant power arrangements for I/O.
- DSAI130 / DSAI133: analog input families commonly encountered in legacy ABB I/O installations; these are I/O boards, not rack assemblies.
- DSAO110 / DSAO120: analog output families that may be found in the same broader legacy ABB installation environment.
Procurement Note
For a shutdown spare, treat as a rack-assembly identification problem rather than simply an “I/O module” purchase. Confirm the installed rack type, 5 V regulator arrangement, cabinet architecture, associated power supplies, and connector/cable configuration. Public secondary listings frequently misclassify this part as an AC 800M/S800 redundant rack, while the Advant OCS documentation identifies it as an I/O subrack with a single 5 V regulator.
