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The ABB BFPS-48C (order code: 3AUA0000074419) is a high-reliability industrial power supply board engineered for stable power distribution and conditioning in ABB automation systems—specifically optimized for control modules, I/O terminals, and auxiliary components in ABB AC800M PLCs and 800xA DCS systems. It functions as a "power management hub," converting and regulating input voltage to provide clean, isolated DC power for sensitive electronic components, while incorporating overvoltage, overcurrent, and short-circuit protection. Designed for seamless integration and long-term operation in industrial environments, it ensures uninterrupted power to critical automation components. Below is its detailed specification:
- Product Model: BFPS-48C
- Order Code: 3AUA0000074419
- Product Series: ABB BFPS Series Power Supply Boards (Automation System Power Distribution, Industrial Grade)
- Core Function: Converts AC input voltage to regulated DC outputs for ABB automation components; provides isolated power distribution to control modules and I/O devices; protects against electrical faults (overvoltage, overcurrent, short circuit); ensures stable power quality for sensitive electronics
- Electrical & Performance Specifications:
- Mechanical Specifications:
- Dimensions: 120mm (W) × 80mm (H) × 30mm (D) (PCB module, rack-mount)
- Mounting Type: DIN rail mount via adapter or direct integration into ABB AC800M racks
- Housing Material: FR4 PCB with conformal coating (UL 94 V0, moisture-resistant)
- Weight: Approximately 150g
- Cooling: Natural convection (no fans, silent operation)
- Environmental Ratings:
- Operating Temperature Range: -10℃~+60℃ (14℉~140℉) (derating above +50℃)
- Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
- Humidity Tolerance: 5%~95% RH (non-condensing, 40℃)
- Vibration Resistance: 10~500Hz, 1g acceleration (IEC 60068-2-6)
- Shock Resistance: 20g (11ms half-sine, IEC 60068-2-27)
- Compliance Standards: CE, RoHS, IEC 60950-1 (safety), UL 60950-1, EN 61326-3-1 (EMC), ABB Automation System Compatibility
- Dual Outputs (48V/3A + 24V/1A): Provides two regulated DC outputs—48V for power-hungry components (e.g., I/O modules, communication interfaces) and 24V for low-power devices (e.g., sensors, relays), eliminating the need for separate power supplies and reducing system complexity.
- Wide Input Range (100~240V AC): Accepts global AC voltages—enables use in 110V (North America) and 220V (Europe/Asia) regions without modifications, simplifying international deployment of ABB automation systems.
- Active Power Factor Correction: Achieves ≥0.95 power factor at full load—reduces harmonic distortion in input current, complying with strict EMC standards (IEC 61000-3-2) and avoiding penalties in industrial power grids.
- Comprehensive Fault Protection: Integrates OVP, OCP, and SCP with auto-recovery—prevents damage to downstream components during voltage spikes, overloads, or short circuits, reducing maintenance costs and downtime.
- 3kV Input-Output Isolation: Eliminates ground loops between AC input and DC outputs—protects sensitive electronics (e.g., PLC processors) from noise and voltage transients in industrial power grids, ensuring stable operation.
- Conformal Coated PCB: Moisture and dust-resistant coating—enables reliable operation in humid or dusty industrial environments (e.g., food processing, chemical plants) without performance degradation.
- Fanless Natural Cooling: Silent operation with no moving parts—eliminates fan-related failures (a common issue in industrial power supplies) and reduces maintenance requirements, extending service life to 10+ years.
- ABB Automation System Power Supply: Primary use in control systems:
- AC800M PLC Systems: Powers CPU modules, I/O interfaces, and communication cards in ABB AC800M PLCs—stable 48V output ensures reliable processor operation, while 24V supports peripheral sensors and relays in manufacturing automation.
- 800xA DCS Components: Supplies power to I/O terminals (e.g., TU582-S) and fieldbus modules in 800xA distributed control systems—low ripple (<50mV) prevents signal interference in critical process control loops (e.g., chemical dosing, temperature regulation).
- Industrial Control Panels: Supporting control logic components:
- Motor Control Centers (MCCs): Powers protective relays (e.g., EF65-70) and control circuits in MCCs—overcurrent protection prevents damage from shorted relay coils, ensuring reliable motor protection.
- Machine Control Panels: Supplies power to HMI panels, limit switches, and solenoid valves in industrial machinery—wide temperature range (-10℃~+60℃) withstands heat buildup in enclosed panels near production lines.
- Process Automation Equipment: Ensuring power stability:
- Batch Processing Systems: Powers sequence controllers and valve positioners in chemical batch reactors—stable 24V output maintains precise valve control, critical for consistent product quality.
- Water Treatment Controls: Supplies power to pH sensors, flow meters, and pump controllers—conformal coating resists moisture in water treatment facilities, preventing PCB corrosion and ensuring uninterrupted operation.
- Energy & Infrastructure: Supporting critical systems:
- Renewable Energy Inverters: Powers control electronics in small-scale solar inverters (e.g., PVS800 auxiliary circuits)—wide input range handles fluctuating grid voltages in remote solar installations.
- Substation Automation: Supplies power to RTU (Remote Terminal Unit) modules in electrical substations—3kV isolation protects sensitive communication electronics from high-voltage transients.
- Output Loading Limits (Critical): Do not exceed 3A on the 48V output or 1A on the 24V output—overloading triggers OCP and may cause thermal degradation; use ABB’s power budget calculator to ensure total load stays within 144W (48V) + 24W (24V) = 168W.
- Installation & Wiring Safety:
- Input Polarity: Connect AC input to L/N terminals correctly—reverse polarity does not damage the board but may cause EMC issues; use color-coded wires (brown/black for live/neutral) to avoid errors.
- Grounding Requirements: Connect the protective earth (PE) terminal to system ground (resistance ≤4Ω)—improper grounding reduces isolation effectiveness and increases EMI susceptibility.
- Wire Sizing: Use 0.5~1mm² wires for DC outputs and 0.75~1.5mm² wires for AC input—undersized wires cause voltage drop and overheating; secure connections with 0.5Nm torque to prevent loosening.
- Operation & Maintenance:
- Derating at High Temperatures: Reduce maximum load by 10% for each 5℃ above +50℃—operating at full load in high temperatures (>60℃) shortens component lifespan; install panel cooling fans if ambient exceeds +50℃.
- 定期检查: Perform semi-annual inspections for:
- PCB discoloration (indicates overheating—check for dust buildup or overloading)
- Loose connections (vibration may loosen terminals—retighten to specified torque)
- Fuse integrity (replace 2A slow-blow fuse with identical ABB-recommended type if blown)
- Conformal coating damage (repair with approved conformal coating if cracks are visible)
- Fault Diagnosis: If outputs are absent, check input voltage (100~240V AC) and fuse first—persistent faults indicate internal failure (e.g., rectifier damage); replace the board rather than attempting repairs (no user-serviceable components).
- Environmental Limitations:
- Moisture & Dust: Avoid direct exposure to condensing humidity (>95% RH) or excessive dust—install in sealed enclosures in harsh environments; dust accumulation blocks cooling and increases thermal resistance.
- Chemical Exposure: Protect from corrosive gases (e.g., sulfur dioxide) or liquids—use chemical-resistant enclosures in industrial areas with aggressive atmospheres; chemicals degrade conformal coating and cause component corrosion.
- Replacement & Spare Parts:
- Genuine ABB Components: Use only genuine BFPS-48C (3AUA0000074419) boards—non-genuine alternatives lack 3kV isolation and proper protection circuits, risking damage to ABB automation components. Verify authenticity via ABB’s serial number lookup tool.
- Spare Inventory: Maintain 1 spare board per 5 critical automation systems—critical for minimizing downtime in production lines where PLC/DCS power failure halts operations; store spares in anti-static packaging at 15℃~25℃

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The structure and details of the product:

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