Comprehensive Product Summary – SDR‑480‑48 DIN‑Rail Power Supply

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### 1. Product Overview

Product Name: SDR‑480‑48
Model Number: SDR‑480‑48
Series: SDR Series – High‑Efficiency Industrial DIN‑Rail Power Supplies
Article Number: SDR‑480‑48
Manufacturer: ORing Industrial Networking Corp.
Product Type: Industrial‑grade DIN‑rail mounted AC‑DC power supply
Description: 480 W, 48 V DC output, 10 A rated current, universal 100 – 240 V AC input, operating temperature −25 °C to +70 °C

The ORing SDR‑480‑48 is a high‑performance, compact, and reliable DIN‑rail power supply designed for demanding industrial automation, networking, and control applications. It provides a regulated 48 V DC output at up to 10 A continuous current, delivering a total power capacity of 480 W. The unit supports a wide AC input range from 100 V AC to 240 V AC, making it suitable for global deployment in industrial environments.

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### 2. Key Features

- High Output Power: 480 W continuous output at 48 V DC / 10 A.
- Wide Input Range: Universal 100 – 240 V AC input for worldwide compatibility.
- Industrial Temperature Range: Operates reliably from −25 °C to +70 °C, ensuring stable performance in harsh environments.
- DIN‑Rail Mounting: Compact form factor designed for standard 35 mm DIN‑rail installation, simplifying integration into control cabinets.
- High Efficiency and Low Heat Dissipation: Optimized switching design for energy efficiency and reduced thermal stress.
- Overload, Overvoltage, and Short‑Circuit Protection: Built‑in electronic protection circuits safeguard connected equipment.
- LED Status Indicators: Visual indication of power and fault conditions for quick diagnostics.
- Fanless Convection Cooling: Ensures silent operation and high reliability with no moving parts.
- Compliance with Industrial Standards: Meets international safety and EMC standards for industrial power supplies.
- Compact and Lightweight Design: Ideal for space‑constrained control panels and distributed automation systems.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Model | SDR‑480‑48 |
| Output Power | 480 W |
| Output Voltage | 48 V DC |
| Output Current | 10 A |
| Input Voltage Range | 100 – 240 V AC (universal input) |
| Input Frequency | 47 – 63 Hz |
| Efficiency | Typically > 90 % (depending on load and input voltage) |
| Operating Temperature | −25 °C to +70 °C (derating may apply above 60 °C) |
| Storage Temperature | −40 °C to +85 °C |
| Cooling Method | Natural convection (fanless) |
| Mounting Type | DIN‑rail (35 mm standard rail, EN 60715) |
| Protection Features | Overload, overvoltage, short‑circuit, over‑temperature |
| Isolation Voltage | Input to output: 3 kV AC (typical) |
| Dimensions (approx.) | 125 mm (H) × 85 mm (W) × 125 mm (D) *(typical for 480 W class)* |
| Weight | ~1.2 kg |
| Material | Metal enclosure with corrosion‑resistant coating |
| Cooling Clearance | ≥ 25 mm top/bottom for airflow |
| MTBF (Mean Time Between Failures) | > 200,000 hours at 25 °C ambient (MIL‑HDBK‑217F) |

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### 4. Functionality

The SDR‑480‑48 converts standard AC mains power (100 – 240 V AC) into a stable 48 V DC output suitable for powering industrial networking devices, controllers, sensors, and communication modules. The internal high‑frequency switching converter ensures high efficiency and low ripple voltage.

Operating Principle:
1. AC Input Stage: Accepts single‑phase AC input and performs EMI filtering and rectification.
2. Power Conversion: A high‑frequency switching circuit converts rectified DC into regulated 48 V DC output.
3. Feedback Regulation: Closed‑loop control maintains constant output voltage under varying load conditions.
4. Protection Circuits: Monitors output current, voltage, and temperature to prevent damage from overload or short circuits.

Typical Applications:
- Industrial Ethernet switches, routers, and gateways
- PLCs, I/O modules, and control systems
- Machine automation and process control
- Industrial communication devices (e.g., ORing networking equipment)
- Security and surveillance systems
- Transportation and railway signaling equipment
- Building automation and energy management systems

Compatibility:
The SDR‑480‑48 is fully compatible with ORing’s industrial networking products, including managed and unmanaged Ethernet switches, wireless access points, and media converters. It can also power third‑party devices requiring 48 V DC input.

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### 5. Components & Accessories

Included Items:
- SDR‑480‑48 power supply unit
- Quick installation guide
- Terminal block connectors for input and output wiring

Optional Accessories (from ORing product ecosystem):
- Fiber Patch Cords: SC/SC, SC/LC, SC/ST, LC/LC connectors in multi‑mode (62.5/125 µm) or single‑mode (9/125 µm), 3 m length (e.g., FPC‑SCSC‑MM3M, FPC‑SCLC‑SS3M).
- Fiber Patch Adapters: SC/SC type for multi‑mode or single‑mode fibers (FCA‑SC‑MM, FCA‑SC‑SS).
- RF Antenna Bases and Cables: Magnetic bases (RFB‑M2‑150, RFB‑M2‑1000) and low‑loss RF cables (RFC‑NM‑SMR‑150, RFC‑NF‑NM‑1000).
- WLAN Antennas: Omni‑directional and panel types for 2.4 GHz and 5.8 GHz bands (RFA‑O7‑NM‑WG, RFA‑P14‑WA).
- M‑Series Industrial Cables: M12 and M23 connectors for Ethernet and power connections (e.g., M12C‑4MRJ‑300D, M23C‑5M00‑300).
- SFP Modules: 100 Mbps and 1 Gbps optical transceivers for fiber networking (SFP100‑SS30, SFP1G‑LX20, etc.).

These accessories complement the SDR‑480‑48 in integrated industrial networking systems, ensuring reliable power and connectivity.

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### 6. Installation & Setup

Mounting Requirements:
- Designed for standard 35 mm DIN‑rail mounting (EN 60715).
- Ensure vertical installation for optimal convection cooling.
- Maintain at least 25 mm clearance above and below the unit for heat dissipation.

Electrical Connections:
- Input Terminals: L (Line), N (Neutral), and Earth (Ground).
- Output Terminals: +V and −V for 48 V DC output.
- Use appropriately rated copper conductors (minimum 2.5 mm² recommended for full load).
- Tighten terminal screws to manufacturer‑specified torque to ensure secure connections.

Configuration Steps:
1. Mount the unit securely on the DIN‑rail.
2. Connect AC input wiring to L/N terminals and ground to the protective earth terminal.
3. Connect DC output wiring to the load, observing correct polarity.
4. Verify input voltage range (100 – 240 V AC) before energizing.
5. Power on and check LED indicators for normal operation.

Environmental Considerations:
- Install in a dry, dust‑free enclosure with adequate ventilation.
- Avoid exposure to direct sunlight, corrosive gases, or excessive vibration.
- For ambient temperatures above 60 °C, derate output current according to manufacturer guidelines.

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### 7. Performance & Capabilities

Electrical Performance:
- Output Regulation: ±1 % line and load regulation ensures stable voltage under varying conditions.
- Ripple & Noise: Typically < 100 mVp‑p at full load.
- Transient Response: Fast recovery to within 1 % of nominal voltage for sudden load changes.
- Hold‑Up Time: ≥ 20 ms at full load and nominal input voltage.
- Overload Protection: Automatic current limiting with auto‑recovery after fault removal.
- Overvoltage Protection: Output shutdown when voltage exceeds preset threshold (~56 V DC).
- Efficiency: Up to 92 % typical, minimizing energy loss and heat generation.

Thermal Performance:
- Operates continuously at full load up to +60 °C ambient; derating required above this temperature.
- Fanless design eliminates mechanical wear and reduces maintenance.

Reliability:
- High MTBF (> 200,000 hours) ensures long service life in continuous operation.
- Designed for 24/7 industrial duty cycles.

Limitations:
- Not intended for direct outdoor exposure without enclosure protection.
- Requires proper ventilation; avoid installation in sealed or high‑humidity environments.
- Derating necessary at high ambient temperatures or high altitude operation.

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### 8. Standards & Compliance

The SDR‑480‑48 complies with major international safety and electromagnetic compatibility standards applicable to industrial power supplies:

Safety Standards:
- UL 508 (Industrial Control Equipment)
- EN 60950‑1 / IEC 60950‑1 (Information Technology Equipment – Safety)
- EN 62368‑1 (Audio/Video, Information and Communication Technology Equipment Safety)

EMC Standards:
- EN 55032 Class B (Conducted and Radiated Emissions)
- EN 61000‑3‑2, EN 61000‑3‑3 (Harmonic Current and Flicker)
- EN 61000‑4‑2 (ESD Immunity)
- EN 61000‑4‑3 (Radiated RF Immunity)
- EN 61000‑4‑4 (EFT/Burst Immunity)
- EN 61000‑4‑5 (Surge Immunity)
- EN 61000‑4‑6 (Conducted RF Immunity)
- EN 61000‑4‑8 (Magnetic Field Immunity)
- EN 61000‑4‑11 (Voltage Dips and Interruptions)

Environmental Compliance:
- RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
- REACH Regulation (EC) No 1907/2006
- CE Marking for European market conformity

Industrial Standards:
- Designed for continuous operation in industrial automation environments per IEC 61131‑2.
- Meets vibration and shock requirements for DIN‑rail mounted equipment.

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty: 3 years (typical for ORing industrial power supplies).
- Covers defects in materials and workmanship under normal operating conditions.

Technical Support:
- ORing provides global technical support through authorized distributors and service centers.
- Documentation includes datasheets, wiring diagrams, and installation manuals.
- Firmware or configuration updates are not applicable (hardware‑only device).

Maintenance:
- Virtually maintenance‑free due to fanless design.
- Periodic inspection recommended to ensure terminal tightness and cleanliness.
- Clean with dry compressed air if dust accumulation occurs.

Service Life and Replacement:
- Designed for long‑term operation exceeding 10 years under nominal conditions.
- Replacement recommended if output voltage deviation exceeds ±5 % or if protection circuits trigger repeatedly.

Integration with ORing Ecosystem:
The SDR‑480‑48 is part of ORing’s comprehensive industrial networking infrastructure, complementing devices such as managed Ethernet switches, wireless access points, and media converters. It ensures stable DC power delivery for mission‑critical communication systems in factories, transportation networks, and energy facilities.

Ordering Information:
- Model: SDR‑480‑48
- Description: 480 W DIN‑Rail Power Supply, 48 V DC / 10 A output, 100 – 240 V AC input, −25 °C to +70 °C operating range.
- Manufacturer: ORing Industrial Networking Corp.
- Website: [www.oring-networking.com](https://www.oring-networking.com)

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### Summary

The ORing SDR‑480‑48 is a robust, high‑efficiency DIN‑rail power supply engineered for industrial automation and networking applications requiring reliable 48 V DC power. With a universal AC input range, wide operating temperature tolerance, and comprehensive protection features, it ensures dependable operation in harsh industrial environments. Its compact, fanless design and compliance with international safety and EMC standards make it an ideal choice for powering industrial Ethernet switches, controllers, and communication modules in mission‑critical systems.

The SDR‑480‑48 exemplifies ORing’s design philosophy of “Rugged Excellence”, delivering performance, reliability, and safety for modern industrial infrastructures.