ABB SD821 3BSC610037R1 Power Supply 24V DC 2.5A | AC 800M
ABB SD821 3BSC610037R1 Power Supply 24V DC 2.5A | AC 800M
Manufacturer: ABB
Product No.: 3BSC610037R1
Condition:1000 in stock
Product Type: Power Supply Module
Product Origin: 9108468400387
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
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ABB SD821 Power Supply Device - Reliable 24V DC Industrial Power Solution
The ABB SD821 (3BSC610037R1) delivers industrial-grade 24V DC power conversion engineered for mission-critical automation systems. This compact DIN-rail power supply provides 2.5A continuous output capacity, supporting ABB AC 800M controllers, S800 I/O modules, and Advant OCS distributed control systems across process industries requiring uninterrupted operation and regulatory compliance.
Core Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 3BSC610037R1 |
| Model Designation | SD821 Power Supply Device |
| Input Voltage | 115/230V AC (switch selectable) |
| Input Frequency | 50/60 Hz |
| Output Voltage | 24V DC nominal (±5% regulation) |
| Output Current | 2.5A continuous, 3.0A peak (10 seconds) |
| Power Rating | 60W maximum |
| Efficiency | >85% at full load |
| Operating Temperature | -20°C to +60°C (-4°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Dimensions (W×H×D) | 50 × 120 × 100 mm (1.97 × 4.72 × 3.94 in) |
| Weight | 0.8 kg (1.76 lbs) |
| Mounting | 35mm DIN-rail (EN 60715) |
| Protection Class | IP20 (front panel), IP10 (terminals) |
| Certifications | CE, UL, CSA, ATEX Zone 2, IECEx, Class I Div 2 |
| Standards Compliance | IEC 61131-2, EN 50178 |
| Country of Origin | Switzerland |
Power Conversion Technology
Switch-Mode Architecture: The SD821 employs high-frequency switching topology operating at 100 kHz, delivering superior efficiency compared to linear regulators while minimizing heat dissipation. This design enables compact form factor without compromising thermal performance in densely packed control cabinets.
Wide Input Range Tolerance: Accepts input voltage variations from 85-264V AC without derating, providing immunity to grid fluctuations common in industrial facilities. Automatic voltage selection eliminates manual configuration errors during installation or equipment relocation between regions.
Output Regulation: Precision feedback control maintains 24V DC output within ±5% tolerance across full load range and input voltage variations. Low output ripple (<50mV peak-to-peak) ensures clean power delivery to sensitive microprocessor-based control systems.
Protection & Reliability Features
- Overvoltage Protection: Crowbar circuit clamps output voltage to safe levels during fault conditions, protecting downstream electronics from damage
- Overcurrent Limiting: Automatic current foldback reduces output during overload events, allowing system recovery without power supply damage
- Short-Circuit Protection: Hiccup-mode operation cycles power during sustained short circuits, preventing thermal runaway while enabling automatic recovery when fault clears
- Thermal Shutdown: Internal temperature monitoring initiates controlled shutdown at 85°C junction temperature, with automatic restart after cooling
- Input Fuse: Replaceable fuse provides primary overcurrent protection for AC input circuit
- EMC Compliance: Integrated filtering meets EN 55011 Class A emissions limits and IEC 61000-4 immunity requirements for industrial environments
Redundancy Configuration
The SD821 supports N+1 redundant power architectures when paired with ABB SS82x Voting Units. Multiple power supplies connect through diode-OR logic, enabling hot-swap replacement during maintenance without interrupting system operation. This configuration is essential for SIL-rated safety systems and continuous process industries where unplanned downtime results in production losses or safety hazards.
Load Sharing: When configured in redundant mode, parallel-connected SD821 units automatically balance load current, maximizing service life and thermal performance. The voting unit monitors individual supply health and isolates failed units while maintaining system power.
Industrial Applications
Process Control Systems: Powers AC 800M controllers managing chemical reactors, distillation columns, and batch sequencing operations in pharmaceutical, petrochemical, and specialty chemical facilities requiring 24/7 uptime.
Distributed I/O Networks: Supplies S800 I/O modules in remote marshalling cabinets across large industrial sites, reducing copper wiring costs while maintaining centralized control architecture.
Safety Instrumented Systems: Provides certified power for SIL2/SIL3 safety controllers in emergency shutdown (ESD), fire & gas detection, and burner management systems where power supply reliability directly impacts safety integrity.
Building Automation: Energizes HVAC controllers, access control panels, and energy management systems in commercial facilities requiring UL/CSA compliance and long-term reliability.
Water & Wastewater Treatment: Operates in harsh environments with temperature extremes, humidity, and corrosive atmospheres typical of municipal treatment plants and industrial effluent systems.
Installation & Commissioning
The SD821 mounts on standard 35mm DIN rail using spring-loaded clips that enable tool-free installation and removal. Screw-clamp terminals accept 14-22 AWG wire for AC input and DC output connections, with clearly marked polarity indicators preventing wiring errors.
Input Voltage Selection: Slide switch on front panel selects 115V or 230V AC operation. Verify switch position matches supply voltage before energizing to prevent damage. LED indicator confirms proper operation and provides diagnostic feedback during fault conditions.
Output Wiring: Connect positive (+24V) and negative (0V) terminals to controller power inputs using appropriately sized wire based on load current and cable length. Install output fusing or circuit breakers per local electrical codes for branch circuit protection.
Maintenance & Troubleshooting
Preventive Maintenance: Inspect terminal connections annually for tightness and signs of overheating. Verify cooling airflow paths remain unobstructed and clean dust accumulation from ventilation slots. Measure output voltage under load to confirm regulation within specification.
Diagnostic Indicators: Green LED illuminates during normal operation. LED off indicates input power loss, blown fuse, or thermal shutdown. Measure input voltage and check fuse continuity to isolate fault. If output voltage is low under load, verify total connected load does not exceed 2.5A rating.
Replacement Procedure: For redundant configurations, replacement can occur under power by disconnecting AC input, removing failed unit, installing replacement, and restoring input power. Non-redundant systems require controlled shutdown of connected equipment before power supply replacement.
Environmental & Regulatory Compliance
The SD821 meets RoHS directives for hazardous substance restrictions and WEEE requirements for end-of-life disposal. ATEX and IECEx certifications enable installation in Zone 2 hazardous locations when properly installed per certification requirements. UL/CSA listings support North American installations requiring agency approvals.
Related Products
| Product Name | Part Number | Output Current | Link |
|---|---|---|---|
| ABB SD822 Power Supply Device | 3BSC610038R1 | 5A @ 24V DC | View Product |
| ABB SD823 Power Supply Device | 3BSC610039R1 | 10A @ 24V DC | View Product |
| ABB SD833 Power Supply | 3BSC610066R1 | 3A @ 24V DC with diagnostics | View Product |
Ordering Information
Standard Configuration: 3BSC610037R1 includes SD821 power supply with 115/230V AC input selection, 24V DC 2.5A output, DIN-rail mounting hardware, and installation documentation.
Optional Accessories: SS82x Voting Units for redundant configurations, spare fuses, and terminal block covers available separately. Contact for custom configurations including extended temperature ranges or specific agency certifications.
Why Choose Industrial Control Hub?
We specialize in ABB automation components with factory-direct sourcing, comprehensive technical support, and global logistics. Every SD821 power supply ships with manufacturer documentation, test certificates, and installation guides. Our engineering team provides application assistance for power budget calculations, redundancy design, and system integration.
Quality Assurance: All units undergo incoming inspection and functional testing before shipment. We maintain inventory across multiple distribution centers for rapid delivery supporting emergency replacements and planned projects.
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191
Product Description
ABB SD821 Power Supply Device - Reliable 24V DC Industrial Power Solution
The ABB SD821 (3BSC610037R1) delivers industrial-grade 24V DC power conversion engineered for mission-critical automation systems. This compact DIN-rail power supply provides 2.5A continuous output capacity, supporting ABB AC 800M controllers, S800 I/O modules, and Advant OCS distributed control systems across process industries requiring uninterrupted operation and regulatory compliance.
Core Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 3BSC610037R1 |
| Model Designation | SD821 Power Supply Device |
| Input Voltage | 115/230V AC (switch selectable) |
| Input Frequency | 50/60 Hz |
| Output Voltage | 24V DC nominal (±5% regulation) |
| Output Current | 2.5A continuous, 3.0A peak (10 seconds) |
| Power Rating | 60W maximum |
| Efficiency | >85% at full load |
| Operating Temperature | -20°C to +60°C (-4°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Dimensions (W×H×D) | 50 × 120 × 100 mm (1.97 × 4.72 × 3.94 in) |
| Weight | 0.8 kg (1.76 lbs) |
| Mounting | 35mm DIN-rail (EN 60715) |
| Protection Class | IP20 (front panel), IP10 (terminals) |
| Certifications | CE, UL, CSA, ATEX Zone 2, IECEx, Class I Div 2 |
| Standards Compliance | IEC 61131-2, EN 50178 |
| Country of Origin | Switzerland |
Power Conversion Technology
Switch-Mode Architecture: The SD821 employs high-frequency switching topology operating at 100 kHz, delivering superior efficiency compared to linear regulators while minimizing heat dissipation. This design enables compact form factor without compromising thermal performance in densely packed control cabinets.
Wide Input Range Tolerance: Accepts input voltage variations from 85-264V AC without derating, providing immunity to grid fluctuations common in industrial facilities. Automatic voltage selection eliminates manual configuration errors during installation or equipment relocation between regions.
Output Regulation: Precision feedback control maintains 24V DC output within ±5% tolerance across full load range and input voltage variations. Low output ripple (<50mV peak-to-peak) ensures clean power delivery to sensitive microprocessor-based control systems.
Protection & Reliability Features
- Overvoltage Protection: Crowbar circuit clamps output voltage to safe levels during fault conditions, protecting downstream electronics from damage
- Overcurrent Limiting: Automatic current foldback reduces output during overload events, allowing system recovery without power supply damage
- Short-Circuit Protection: Hiccup-mode operation cycles power during sustained short circuits, preventing thermal runaway while enabling automatic recovery when fault clears
- Thermal Shutdown: Internal temperature monitoring initiates controlled shutdown at 85°C junction temperature, with automatic restart after cooling
- Input Fuse: Replaceable fuse provides primary overcurrent protection for AC input circuit
- EMC Compliance: Integrated filtering meets EN 55011 Class A emissions limits and IEC 61000-4 immunity requirements for industrial environments
Redundancy Configuration
The SD821 supports N+1 redundant power architectures when paired with ABB SS82x Voting Units. Multiple power supplies connect through diode-OR logic, enabling hot-swap replacement during maintenance without interrupting system operation. This configuration is essential for SIL-rated safety systems and continuous process industries where unplanned downtime results in production losses or safety hazards.
Load Sharing: When configured in redundant mode, parallel-connected SD821 units automatically balance load current, maximizing service life and thermal performance. The voting unit monitors individual supply health and isolates failed units while maintaining system power.
Industrial Applications
Process Control Systems: Powers AC 800M controllers managing chemical reactors, distillation columns, and batch sequencing operations in pharmaceutical, petrochemical, and specialty chemical facilities requiring 24/7 uptime.
Distributed I/O Networks: Supplies S800 I/O modules in remote marshalling cabinets across large industrial sites, reducing copper wiring costs while maintaining centralized control architecture.
Safety Instrumented Systems: Provides certified power for SIL2/SIL3 safety controllers in emergency shutdown (ESD), fire & gas detection, and burner management systems where power supply reliability directly impacts safety integrity.
Building Automation: Energizes HVAC controllers, access control panels, and energy management systems in commercial facilities requiring UL/CSA compliance and long-term reliability.
Water & Wastewater Treatment: Operates in harsh environments with temperature extremes, humidity, and corrosive atmospheres typical of municipal treatment plants and industrial effluent systems.
Installation & Commissioning
The SD821 mounts on standard 35mm DIN rail using spring-loaded clips that enable tool-free installation and removal. Screw-clamp terminals accept 14-22 AWG wire for AC input and DC output connections, with clearly marked polarity indicators preventing wiring errors.
Input Voltage Selection: Slide switch on front panel selects 115V or 230V AC operation. Verify switch position matches supply voltage before energizing to prevent damage. LED indicator confirms proper operation and provides diagnostic feedback during fault conditions.
Output Wiring: Connect positive (+24V) and negative (0V) terminals to controller power inputs using appropriately sized wire based on load current and cable length. Install output fusing or circuit breakers per local electrical codes for branch circuit protection.
Maintenance & Troubleshooting
Preventive Maintenance: Inspect terminal connections annually for tightness and signs of overheating. Verify cooling airflow paths remain unobstructed and clean dust accumulation from ventilation slots. Measure output voltage under load to confirm regulation within specification.
Diagnostic Indicators: Green LED illuminates during normal operation. LED off indicates input power loss, blown fuse, or thermal shutdown. Measure input voltage and check fuse continuity to isolate fault. If output voltage is low under load, verify total connected load does not exceed 2.5A rating.
Replacement Procedure: For redundant configurations, replacement can occur under power by disconnecting AC input, removing failed unit, installing replacement, and restoring input power. Non-redundant systems require controlled shutdown of connected equipment before power supply replacement.
Environmental & Regulatory Compliance
The SD821 meets RoHS directives for hazardous substance restrictions and WEEE requirements for end-of-life disposal. ATEX and IECEx certifications enable installation in Zone 2 hazardous locations when properly installed per certification requirements. UL/CSA listings support North American installations requiring agency approvals.
Related Products
| Product Name | Part Number | Output Current | Link |
|---|---|---|---|
| ABB SD822 Power Supply Device | 3BSC610038R1 | 5A @ 24V DC | View Product |
| ABB SD823 Power Supply Device | 3BSC610039R1 | 10A @ 24V DC | View Product |
| ABB SD833 Power Supply | 3BSC610066R1 | 3A @ 24V DC with diagnostics | View Product |
Ordering Information
Standard Configuration: 3BSC610037R1 includes SD821 power supply with 115/230V AC input selection, 24V DC 2.5A output, DIN-rail mounting hardware, and installation documentation.
Optional Accessories: SS82x Voting Units for redundant configurations, spare fuses, and terminal block covers available separately. Contact for custom configurations including extended temperature ranges or specific agency certifications.
Why Choose Industrial Control Hub?
We specialize in ABB automation components with factory-direct sourcing, comprehensive technical support, and global logistics. Every SD821 power supply ships with manufacturer documentation, test certificates, and installation guides. Our engineering team provides application assistance for power budget calculations, redundancy design, and system integration.
Quality Assurance: All units undergo incoming inspection and functional testing before shipment. We maintain inventory across multiple distribution centers for rapid delivery supporting emergency replacements and planned projects.
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191