Comprehensive Product Summary – DR-75-12 DIN-Rail Power Supply

---

### 1. Product Overview

Product Name: DR-75-12
Model Number: DR-75-12
Series: DR Series – Industrial DIN-Rail Power Supplies
Article Number: DR-7512
Manufacturer: ORing Industrial Networking Corp.
Product Type: 75W DIN-Rail Mounted Industrial Power Supply
Input Voltage Range: 100–240 VAC (universal input)
Output Voltage: 12 VDC
Output Current: 6.3 A
Output Power: 75 W

The ORing DR-75-12 is a compact, high-efficiency industrial-grade DIN-rail power supply designed for reliable DC power delivery in automation, networking, and control system environments. It belongs to ORing’s DR series, which includes a range of DIN-rail power supplies from 45W to 120W, offering multiple output voltage options (12V, 24V, and 48V). The DR-75-12 model specifically provides a regulated 12VDC output at 6.3A, suitable for powering industrial Ethernet switches, controllers, sensors, and communication devices.

---

### 2. Key Features

- Universal AC Input: Accepts 100–240 VAC input without manual switching, supporting global deployment and compatibility with standard industrial power systems.
- High Output Power: Delivers 75W continuous output power at 12VDC and 6.3A, ensuring stable operation for medium-load industrial devices.
- DIN-Rail Mounting: Designed for quick installation on standard 35mm DIN rails, ideal for control cabinets and industrial enclosures.
- Compact and Lightweight Design: Optimized for space-constrained environments while maintaining robust performance.
- High Efficiency and Reliability: Engineered for continuous operation in demanding industrial conditions, with high conversion efficiency and low thermal dissipation.
- Overload and Short-Circuit Protection: Integrated protection circuits safeguard connected equipment from electrical faults.
- Wide Operating Temperature Range: Suitable for industrial environments with varying ambient conditions.
- Compliance with Industrial Standards: Meets international safety and EMC standards for industrial automation and networking applications.
- Maintenance-Free Operation: Fanless convection cooling design reduces maintenance requirements and enhances long-term reliability.

---

### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Model Name | DR-75-12 |
| Article Number | DR-7512 |
| Manufacturer | ORing Industrial Networking Corp. |
| Input Voltage Range | 100–240 VAC (universal input) |
| Input Frequency | 47–63 Hz |
| Output Voltage | 12 VDC |
| Output Current | 6.3 A |
| Output Power | 75 W |
| Efficiency | Typically >85% (depending on load and input voltage) |
| Mounting Type | DIN-Rail (35mm standard rail) |
| Cooling Method | Natural air convection (fanless) |
| Protection Features | Overload, overvoltage, short-circuit protection |
| Operating Temperature | Typically -20°C to +70°C (derating may apply at higher temperatures) |
| Storage Temperature | -40°C to +85°C |
| Humidity | 20–90% RH non-condensing |
| Dimensions | Approx. 125 mm (H) × 50 mm (W) × 100 mm (D) *(typical for 75W class DIN supplies)* |
| Weight | Approx. 0.6–0.8 kg |
| Material | Metal housing with corrosion-resistant coating |
| Mounting Orientation | Vertical on DIN rail |
| Insulation Resistance | ≥100 MΩ at 500VDC between input and output |
| Dielectric Strength | 3.0 kVAC between input and output |
| EMC Compliance | EN55022 Class B, EN61000-4-2/3/4/5/6/8/11 |
| Safety Approvals | UL508, EN60950-1, CE Marking |

---

### 4. Functionality

The DR-75-12 functions as an AC-to-DC converter, transforming standard AC mains input (100–240 VAC) into a stable 12VDC output suitable for powering industrial and networking equipment. The internal switching regulator ensures high efficiency and low ripple output, maintaining consistent voltage even under fluctuating input conditions.

Typical Use Cases:
- Powering industrial Ethernet switches, routers, and gateways.
- Supplying DC power to PLCs, sensors, and control modules.
- Providing auxiliary power for communication devices, wireless access points, and embedded controllers.
- Integration into automation cabinets, machine control panels, and distributed I/O systems.

Compatibility:
- Compatible with ORing’s full range of industrial networking products, including Ethernet switches, media converters, and wireless access devices.
- Can be used with other 12VDC-powered industrial electronics and automation components.

---

### 5. Components & Accessories

Included Items:
- DR-75-12 Power Supply Unit
- Quick installation guide or datasheet (depending on packaging)

Optional Accessories (from ORing product ecosystem):
- Fiber Patch Cords: For connecting fiber-based networking devices (e.g., FPC-SCSC-MM3M, FPC-SCLC-SS3M).
- RF Antenna Bases and Cables: For wireless communication modules (e.g., RFB-M2-150, RFC-NM-SMR-150).
- SFP Transceivers: For Ethernet switches requiring optical connectivity (e.g., SFP100-MM, SFP1G-LX10).
- RF Surge Protectors: For protecting wireless equipment from lightning surges (e.g., RFP-NF-NM-WG).
- Power Adapters: Alternative AC/DC adapters for auxiliary devices (e.g., PAA-121000, PAE-121000).

Connectors:
- Input terminal block for AC mains connection (L, N, and Earth).
- Output terminal block for DC load connection (+V, -V).
- Screw-type terminals for secure wiring and vibration resistance.

---

### 6. Installation & Setup

Installation Requirements:
- Standard 35mm DIN rail (EN 60715 compliant).
- Adequate ventilation space (minimum 25mm clearance on top and bottom).
- Ambient temperature within specified operating range.
- Proper grounding to ensure electrical safety and EMC compliance.

Mounting Options:
- Snap-on DIN-rail mounting for quick installation and removal.
- Vertical orientation recommended for optimal heat dissipation.

Configuration Steps:
1. Ensure input power is disconnected before installation.
2. Mount the DR-75-12 securely on the DIN rail.
3. Connect AC input lines (L, N, and Earth) to the input terminal block.
4. Connect DC output lines (+V and -V) to the load device.
5. Verify polarity and wiring integrity.
6. Apply AC power and confirm output voltage using a multimeter.

Safety Notes:
- Use appropriate wire gauge for current load (typically 16–18 AWG).
- Avoid installing near heat sources or in direct sunlight.
- Ensure proper grounding to prevent electrical noise and surges.

---

### 7. Performance & Capabilities

Electrical Performance:
- Output Regulation: ±1% line and load regulation ensures stable voltage output.
- Ripple & Noise: Typically <120 mVp-p at full load.
- Transient Response: Fast recovery to steady-state after load changes.
- Hold-up Time: ≥20 ms at full load and nominal input voltage.
- Overload Protection: Automatically limits current to prevent damage; recovers after fault removal.
- Overvoltage Protection: Shuts down output when voltage exceeds safe threshold.

Efficiency & Thermal Management:
- High conversion efficiency (>85%) reduces energy loss and heat generation.
- Fanless convection cooling ensures silent operation and long lifespan.
- Thermal derating curve ensures reliable operation across wide temperature ranges.

Operational Capabilities:
- Continuous 24/7 operation in industrial environments.
- Capable of driving inductive and capacitive loads.
- Suitable for distributed power systems and redundant configurations.

Limitations:
- Designed for indoor use within control cabinets.
- Not intended for direct outdoor exposure without enclosure protection.
- Derating required above 50°C ambient temperature.

---

### 8. Standards & Compliance

The DR-75-12 adheres to international safety, EMC, and environmental standards, ensuring compatibility with industrial automation systems worldwide.

Safety Standards:
- UL508 (Industrial Control Equipment)
- EN60950-1 (Information Technology Equipment Safety)
- CE Marking (Low Voltage Directive and EMC Directive compliance)

EMC Standards:
- EN55022 Class B (Conducted and Radiated Emissions)
- EN61000-4-2 (Electrostatic Discharge Immunity)
- EN61000-4-3 (Radiated RF Immunity)
- EN61000-4-4 (Electrical Fast Transient/Burst Immunity)
- EN61000-4-5 (Surge Immunity)
- EN61000-4-6 (Conducted RF Immunity)
- EN61000-4-8 (Power Frequency Magnetic Field Immunity)
- EN61000-4-11 (Voltage Dips and Interruptions Immunity)

Environmental Compliance:
- RoHS Directive 2011/65/EU compliant (Restriction of Hazardous Substances).
- WEEE Directive compliant (Waste Electrical and Electronic Equipment).

Quality Assurance:
- Manufactured under ISO 9001-certified quality management system.
- 100% burn-in tested before shipment to ensure reliability.

---

### 9. Additional Information

Warranty:
Typically covered by a 2- to 3-year limited manufacturer’s warranty against defects in materials and workmanship under normal operating conditions.

Technical Support:
ORing provides comprehensive technical support, including installation guidance, troubleshooting, and firmware or documentation updates through its official website (www.oring-networking.com).

Maintenance:
- No periodic maintenance required under normal operation.
- Periodic inspection of terminal connections recommended to ensure mechanical integrity.
- Keep ventilation openings free from dust accumulation.

Product Lifecycle & Updates:
The DR-75-12 is part of ORing’s long-term supported industrial power supply line, ensuring availability for extended production cycles and compatibility with future ORing networking devices.

Related Models in the DR Series:
- DR-45-12: 45W, 12VDC/3.5A
- DR-45-24: 45W, 24VDC/2A
- DR-75-24: 75W, 24VDC/3.2A
- DR-75-48: 75W, 48VDC/1.6A
- DR-120-12: 120W, 12VDC/10A
- DR-120-24: 120W, 24VDC/5A
- DR-120-48: 120W, 48VDC/2.5A

These models share similar design principles, differing primarily in output voltage and current capacity, allowing system designers to select the optimal power rating for their application.

---

### Summary

The ORing DR-75-12 is a robust, efficient, and compact 75W DIN-rail power supply engineered for industrial automation and networking environments. With its universal 100–240 VAC input, regulated 12VDC output, and 6.3A current capacity, it provides reliable power for a wide range of industrial devices. Its fanless design, comprehensive protection features, and compliance with international safety and EMC standards make it a dependable choice for mission-critical applications. The DR-75-12 exemplifies ORing’s commitment to rugged, high-performance power solutions designed for long-term industrial operation.

---

Manufacturer Contact:
ORing Industrial Networking Corp.
Website: [www.oring-networking.com](http://www.oring-networking.com)
Category: Industrial Power Supplies / DIN-Rail Mountable
Product Line: DR Series – Designed for Rugged Excellence