Description
ABB SD812F (3BDH000014R1) AC800F Freelance Control System Power Supply Module
Product Description
The SD812F, part code 3BDH000014R1, is a dedicated rack power supply module for ABB AC800F Freelance distributed control system. It accepts 24VDC input and converts it into stable 5VDC and 3.3VDC internal logic power for the PM802F / PM803F controller and local I/O modules. The module provides power fail prediction and continuous hardware self-diagnosis. It can be deployed in redundant configuration to eliminate single point of failure for critical process control racks. Equipped with multi-color LED status indicators, it allows quick visual diagnosis for power, fault and operational status. This compact DIN-rail/rack mount power unit is a core spare part for ABB Freelance DCS, widely used for continuous process automation plants requiring high availability.

SD812F
Technical Specifications
- Part Number: SD812F, 3BDH000014R1
- Manufacturer: ABB
- Series: AC800F Freelance DCS
- Device Type: Controller Rack Power Supply Module
- Input Voltage: 24 VDC
- Output 1: 5 VDC, 5.5 A
- Output 2: 3.3 VDC, 6.5 A
- Efficiency: >90% at nominal load
- Dimensions: 115 × 115 × 67 mm
- Weight: Approx. 0.46 kg
- Operating Temperature: -20°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5%~95%, non-condensing
- Mounting: DIN rail / AC800F rack mount
- Protection: Overload, short-circuit, overvoltage protection
- Indicators: LED for Power, Failure, Run, PrmSec, Toggle, Reset, Run/Stop
- Certifications: CE, UL
Key Features
- Specialized power supply for ABB AC800F Freelance controller rack
- Converts 24VDC field power into 5V and 3.3V logic power for CPU and I/O
- Supports redundant power arrangement for high-availability DCS racks
- Built-in power failure prediction function for advance alarm notification
- Multi LED status indicators for rapid on-site fault diagnosis
- Comprehensive protection: overload, short circuit and overvoltage protection
- Compact lightweight design, easy rack installation and spare replacement
- Continuous self-diagnosis for power circuit health monitoring

SD812F
Application Scenarios
- Petrochemical and refinery process control DCS
- Power plant boiler and auxiliary control systems
- Oil & gas onshore and offshore production control
- Pulp & paper mill continuous process automation
- Water & wastewater treatment plant control systems
- Pharmaceutical batch process control
- Cement plant kiln and production line control
- Chemical reactor and distillation column monitoring
Matching / Auxiliary Components
- ABB AC800F controller PM802F / PM803F
- rack chassis and backplane
- Freelance series AI/AO/DI/DO I/O modules
- Redundant 24VDC field power supply
- Freelance engineering workstation and Control Builder F software
- Shielded communication cables for Profibus / Ethernet
- Terminal base units for I/O modules
- DIN rail mounting accessories
Related ABB Freelance Series Models (9 pcs)
- PM802F Controller Module
- PM803F Controller Module
- AI810 8-Channel Analog Input Module
- AO810 8-Channel Analog Output Module
- DI810 16-Channel Digital Input Module
- DO810 16-Channel Digital Output Module
- FI830F Profibus Interface Module
- EI803F Ethernet Communication Module
- TU810 Terminal Unit
