ABB SD812F 3BDH000014R1 Power Supply Module

The ABB SD812F 3BDH000014R1 is a rack power supply module for the ABB Freelance AC 800F DCS control system. It converts input voltage into stable working power for controllers, communication boards and I/O modules inside the rack.

This module supports redundant hot backup and integrates multiple protection functions. It is widely stocked as spare parts for automation cabinet maintenance in power, petrochemical, water treatment and pharmaceutical industries.

Main Specifications

• Brand: ABB; Model: SD812F 3BDH000014R1; Type: Rack Power Supply Module
• Applicable System: ABB Freelance AC 800F distributed control platform
• Core Tasks: Voltage conversion, backplane power distribution, overvoltage/overcurrent protection, power diagnosis
• Interface: Power input terminals, internal rack backplane connector
• Installation: Plug-in mounting inside AC800F control rack
• Configuration: Supports redundant hot standby operation
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing, industrial anti‑vibration grade
• Certifications: CE, compliant with industrial DCS EMC and safety standards

Core Functions

• Provide stable DC power supply for PM803F controller, EI813F, FI820F, FI830F communication modules and I/O boards.
• Built-in overvoltage, overcurrent, short circuit and overtemperature protection to avoid module damage caused by power anomalies.
• Support redundant configuration, automatic switchover upon single power failure to ensure uninterrupted DCS operation.
• Equipped with LED status indicators to show working state and help maintenance staff quickly locate power faults.
• Adopt plug-in modular design for convenient installation, disassembly and replacement during on-site overhaul.
• Conformal coating and anti-interference design adapt to long-term stable operation in industrial control rooms.

Application Scenarios

• Spare-part replacement for ABB Freelance AC800F DCS cabinets in petrochemical, power, water treatment and pharmaceutical sites.
• Power supply hardware for boiler control, pipeline process regulation and factory distributed automation control systems.
• Maintenance backup inventory for renovation and after-sales maintenance projects of legacy ABB Freelance automation systems.
• Matching power module cooperating with PM803F CPU, EI813F, FI830F communication modules and various I/O modules.
• Retrofit replacement for aged modules with no output, indicator failure and internal circuit burnout faults.

• Global aftermarket spare supply for automation maintenance teams maintaining ABB DCS control equipment worldwide.