Description
ABB SA811F 3BDH000013R1 | AC 800F Power Supply | Freelance DCS
Key Technical Specifications
| Parameter | Specification |
|---|---|
| ABB Type Designation | SA 811F |
| Article Number | 3BDH000013R1 |
| Product Type | Power Supply |
| System | ABB Freelance AC 800F |
| Nominal Input | 115/230 VAC |
| Input Selection | Self-adjusting |
| Output 1 | 5 VDC / 5.5 A |
| Output 2 | 3.3 VDC / 6.5 A |
| Total Output Power | 35 W |
| Output Isolation | Electrically isolated |
| Short-Circuit Protection | Yes |
| Overload Protection | Yes |
| Open-Circuit Protection | Yes |
| Power-Fail Signal | Generated after ≥5 ms power loss |
| Power-Failure Hold-Up | At least 15 ms after power-fail signal |
| Total Managed Mains Drop | Approximately 20 ms |
| Dimensions | 155 × 155 × 67 mm |
| Net Weight | Approximately 0.46 kg |
| Compatible CPU | PM803F |
| Required Freelance Software | V7.1 SP2a or higher |
ABB states that the SA811F supplies the AC 800F modules with 5 VDC/5.5 A and 3.3 VDC/6.5 A, and incorporates open-circuit, overload, and sustained short-circuit protection. ABB also documents the power-fail behavior used to place connected remote I/O outputs into a safe state during a power interruption.
Product Introduction
ABB SA811F Power Supply
The ABB SA811F 3BDH000013R1 is a dedicated internal power supply for the AC 800F Freelance DCS controller. Unlike a conventional plant 24 VDC supply, it generates the internal DC rails required by the AC 800F electronics: 5 VDC at 5.5 A and 3.3 VDC at 6.5 A. ABB rates the combined supply capability at 35 W.
Power-fail handling is an important part of the design. ABB specifies that a mains interruption of at least 5 ms generates a power-fail signal, allowing the CPU to shut down operations and place connected remote I/O outputs into a safe state; the supply maintains its output within tolerance for at least another 15 ms.
SA811F
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
The main replacement risk is identifying SA811F as a generic AC-to-DC power supply. It is a dedicated AC 800F internal module, and its output rails, mechanical interface, controller generation, and software environment all matter.
Typical Applications
- AC 800F Field Controllers — Internal supply for the controller electronics.
- PM803F-Based Freelance Systems — ABB specifically documents SA811F for this controller generation.
- Expanded Fieldbus Configurations — Supplies the internal power required by the AC 800F CPU and installed communication/fieldbus modules.
- Legacy Freelance Maintenance — Replacement of an aging where continued AC 800F operation is required.
Technical Pitfalls to Avoid
1. Do not specify 24 VDC output.
Several current reseller pages incorrectly describe as a 24 VDC, 240 W supply. ABB’s own catalog specifies 5 VDC/5.5 A and 3.3 VDC/6.5 A, 35 W total.
2. Verify the CPU and Freelance version.
ABB identifies for use with PM803F and states that Freelance V7.1 SP2a or higher is mandatory.
3. Do not substitute a generic DIN-rail PSU.
The interfaces with the AC 800F controller architecture and provides dedicated internal rails and power-fail signaling. External 24 VDC supplies do not reproduce that function.
4. Check the power-fail behavior during maintenance.
The module participates in the controlled shutdown sequence of the AC 800F system. A replacement should be tested as part of the controller rather than evaluated only by measuring its output voltage off-load.
5. Match the complete article number.
For procurement, use / 3BDH000013R1 together. Generic references such as “SA811” can lead to incorrect hardware identification.
Related Products
- ABB PM803F — AC 800F processor module specifically associated with .
- ABB PM802F — Earlier AC 800F processor; compatibility should be checked against the installed Freelance generation rather than assumed.
- ABB SA801F — Earlier AC 800F AC-input power supply with different system-loading considerations.
- ABB SD802F — DC-input AC 800F power supply; different input architecture.
- ABB SD812F — DC-input power-supply counterpart used in higher-capacity AC 800F configurations.
- ABB AM811F 3BDH000050R1 — AC 800F battery module; unrelated to the power-conversion function.
- ABB EI802F — AC 800F Ethernet/AUI interface module.
- ABB FI830F — AC 800F PROFIBUS-DP interface module whose quantity can affect overall controller power requirements.
Procurement Guidance
For an 3BDH000013R1 replacement, verify:
- Exact designation: SA 811F
- Article number: 3BDH000013R1
- Installed CPU: PM803F or other AC 800F generation
- Freelance software version
- Number and type of installed plug-in modules
- Input supply: 115/230 VAC
- Physical connector and mounting condition
- Power-fail behavior
- Condition: new surplus, used-tested, or repaired
- Original label and revision information
Engineering recommendation: treat as an AC 800F system power module, not as a general-purpose power supply. The most important procurement checks are the exact article number, CPU generation, Freelance software revision, and installed module load. ABB’s own documentation should take precedence over reseller specifications, particularly where 24 VDC and 240 W figures are being quoted.
