Description
The ABB SD812F (part number 3BDH000014R1) is a high-efficiency switch-mode power supply unit designed for the Freelance distributed control system (DCS). It provides a stabilized 24V DC output, ensuring the reliable operation of CPU modules, I/O stations, and field sensors in demanding industrial environments.
Technical Datasheet
| Feature | Specification |
| Model Number | SD812F |
| Part Number | 3BDH000014R1 |
| Manufacturer | ABB |
| Input Voltage Range | 100-240V AC (Wide Range) / 110-250V DC |
| Output Voltage | 24V DC (Adjustable) |
| Output Current | 10A |
| Power Rating | 240W |
| Efficiency | > 90% |
| Redundancy | Supported via external diode modules |

ABB SD812F 3BDH000014R1
Key Features
- Universal Input: Supports a wide range of AC and DC input voltages, making it compatible with various global power standards.
- Overload Protection: Integrated short-circuit and over-voltage protection to prevent damage to sensitive downstream electronics.
- Status Monitoring: Features dry contacts (Power Good signal) and front-panel LEDs for immediate diagnostic feedback on output health.
- DIN Rail Mounting: Designed for easy installation in standard control cabinets with high vibration resistance.
- Conformal Coating: Often used in harsh environments where moisture or corrosive gases may be present.

ABB SD812F 3BDH000014R1
Product Overview
The SD812F is a critical component for maintaining system uptime. It is specifically engineered to meet the high-availability requirements of ABB’s Freelance architecture, often powering the AC 800F or AC 700F controllers. Its high efficiency minimizes heat dissipation within the cabinet, extending the lifespan of adjacent components.

ABB SD812F 3BDH000014R1
Related Product Recommendations
- ABB SA811F | Power Supply 24V DC / 5A
- ABB PM802F | Processor Module
- ABB EI803F | Ethernet Interface
- ABB TB870F | Terminal Block

