EMERSON SDN 20-24-100C 24VDC 20A DIN Rail Power Supply – SDN Series
When a DIN rail power supply fails mid-shift, the consequences cascade instantly: PLCs lose logic, HMIs go dark, safety relays drop out, and an entire production line grinds to a halt. Unplanned downtime in industrial environments costs thousands of dollars per minute — and the root cause is often a power supply that was never rated for the real-world demands of the panel. The EMERSON SDN 20-24-100C is engineered to eliminate that risk, delivering stable, regulated 24 VDC power even under the harshest electrical conditions.
Within the EMERSON SDN Series — one of the most trusted families of industrial DIN rail power supplies globally — the SDN 20-24-100C occupies the high-current 20 A tier, making it the preferred choice for power-hungry control panels that drive multiple PLCs, distributed I/O racks, solenoid valve banks, and field instrumentation simultaneously. Backed by EMERSON’s decades of power conversion expertise and compliant with global safety standards, this unit is deployed across manufacturing, oil & gas, water treatment, and building automation installations worldwide.
Technical Specifications
- Model: SDN 20-24-100C
- Brand / Manufacturer: EMERSON (Sola/Hevi-Duty)
- Series: SDN Series
- Output Voltage: 24 VDC (adjustable 24–28 VDC)
- Output Current: 20 A
- Output Power: 480 W
- Input Voltage: 85–264 VAC (universal input) / 120–375 VDC
- Input Frequency: 47–63 Hz
- Efficiency: ≥ 89%
- Mounting: DIN Rail (EN 60715 / TS 35)
- Operating Temperature: -25°C to +60°C
- Protection Class: IP20
- Certifications: UL 508, CE, cUL
- Weight: 1.44 kg
- Dimensions (W × H × D): Refer to official EMERSON datasheet
Key Features & Benefits
- Universal AC Input: Accepts 85–264 VAC without manual switching — ideal for global deployments and sites with unstable grid voltage.
- High Output Stability: Tight output regulation ensures sensitive PLC CPUs and analog I/O modules receive clean, consistent 24 VDC.
- Active Power Factor Correction (PFC): Reduces harmonic distortion and lowers total energy consumption in the panel.
- Parallel Operation Ready: Multiple SDN 20-24-100C units can be paralleled for redundancy or increased current capacity — critical for high-availability systems.
- Overload & Short-Circuit Protection: Automatic recovery protects downstream devices without requiring manual intervention.
- Overvoltage & Overtemperature Protection: Built-in safeguards prevent damage to connected automation equipment.
- LED Status Indicator: Instant visual confirmation of output status for fast panel diagnostics.
- Wide Operating Temperature Range: Performs reliably from -25°C to +60°C, suitable for outdoor enclosures and harsh industrial environments.
- Compact DIN Rail Form Factor: Snap-on DIN rail mounting minimizes panel space and simplifies installation and replacement.
Industry & Equipment Applications
- Discrete Manufacturing: Powering PLC control panels, servo drives, and distributed I/O in automotive assembly and electronics production lines.
- Process Industries: Supplying 24 VDC to DCS field junction boxes, transmitters, and positioners in chemical, petrochemical, and refinery plants.
- Oil & Gas: Panel power for wellhead RTUs, SCADA outstations, and ESD systems in upstream and midstream facilities.
- Water & Wastewater Treatment: Reliable power for pump station PLCs, level transmitters, and chlorination control panels.
- Building Automation (BAS/BMS): Centralized 24 VDC supply for HVAC controllers, VAV boxes, and fire alarm interface panels.
- Railway & Transportation: Powering trackside signaling equipment and station control systems requiring wide-temperature operation.
- Renewable Energy: Auxiliary power for solar inverter monitoring panels and wind turbine control cabinets.
System Integration & Compatible Parts
The SDN 20-24-100C integrates seamlessly into EMERSON SDN Series power distribution architectures. Compatible and commonly paired components include:
- EMERSON SDN Series: SDN 5-24-100C (5 A), SDN 10-24-100C (10 A) — for mixed-load panel designs
- Redundancy Modules: EMERSON SDP redundancy decoupling modules for 1+1 redundant power configurations
- DIN Rail Terminal Blocks: Phoenix Contact, Weidmüller, or equivalent 24 VDC distribution terminals
- PLCs: Siemens S7-300/400/1500, Allen-Bradley ControlLogix/CompactLogix, Schneider Modicon M340/M580
- Remote I/O: Siemens ET 200SP/MP, Rockwell 1734 POINT I/O, Beckhoff EtherCAT terminals
- HMIs: Siemens SIMATIC HMI panels, Weintek, Proface — all requiring stable 24 VDC supply
Our Quality Assurance Process
At Konmask.com, every EMERSON SDN 20-24-100C unit we supply undergoes a rigorous verification process before shipment:
- Authenticity Verification: All units are sourced from authorized distributors or verified surplus channels. Serial numbers and date codes are cross-checked against manufacturer records.
- Visual & Physical Inspection: Housing integrity, terminal condition, label legibility, and connector quality are inspected for any signs of damage or counterfeit indicators.
- Functional Testing: Where applicable, units are bench-tested for output voltage accuracy and basic protection function verification.
- Secure Packaging: Anti-static packaging with foam cushioning ensures safe transit to your facility anywhere in the world.
- Documentation: Datasheet, test report (where available), and packing list provided with every shipment.
How to Order
- Submit your inquiry via the Contact Us form or email support@konmask.com with your required quantity and delivery timeline.
- Our technical team will confirm availability, lead time, and provide a formal quotation within 24 hours.
- Upon PO confirmation, we arrange export documentation, packaging, and shipment via your preferred freight method (DHL, FedEx, sea freight, etc.).
- Track your shipment with the provided AWB/BL number. Our team remains available for post-delivery technical support.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: We focus exclusively on PLC, DCS, and industrial power components — not a generalist marketplace.
- ✅ Global B2B Export Experience: Serving engineering firms, system integrators, and MRO buyers across 40+ countries.
- ✅ Fast Inquiry Response: Dedicated technical sales team responds within 24 hours with accurate stock and pricing information.
- ✅ Flexible MOQ: Single-unit orders accepted — no minimum order quantity for urgent replacement needs.
- ✅ Competitive Pricing: Direct sourcing relationships allow us to offer market-competitive pricing on EMERSON SDN Series products.
- ✅ Reliable Logistics: Experienced in export compliance, customs documentation, and international freight for industrial components.
Frequently Asked Questions
Q: Is the EMERSON SDN 20-24-100C compatible with 110V and 220V input?
A: Yes. The SDN 20-24-100C features a universal input range of 85–264 VAC, making it compatible with both 110V (North America) and 220V (Europe/Asia) mains without any manual voltage selection.
Q: Can I use multiple SDN 20-24-100C units in parallel for redundancy?
A: Yes. The SDN Series supports parallel operation. For true 1+1 redundancy, pair with an EMERSON SDP redundancy module to ensure automatic failover without output interruption.
Q: What is the difference between SDN 20-24-100C and SDN 20-24-100P?
A: The suffix “C” typically denotes the standard commercial/industrial version, while “P” may indicate a panel-mount or alternative housing variant. Please contact us to confirm the exact variant required for your application.
Q: How long is the lead time for the SDN 20-24-100C?
A: Lead time depends on current stock levels. In-stock units ship within 3–5 business days. For out-of-stock items, typical lead time is 2–6 weeks. Submit an inquiry for real-time availability.
Q: Do you provide a warranty on EMERSON SDN 20-24-100C units?
A: We provide a 90-day functional warranty on all units shipped from Konmask.com. Extended warranty options are available — please discuss with our sales team at the time of inquiry.
Q: Can you supply the EMERSON SDN 20-24-100C with export documentation for customs clearance?
A: Yes. We provide commercial invoice, packing list, and certificate of origin as standard. Additional documentation (e.g., Form E for ASEAN, EUR.1 for EU) can be arranged upon request.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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