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- High Power Output: 120W continuous output power at 48VDC and 2.5A current capacity.
- Wide Input Range: Operates from 100–120VAC or 220–240VAC, selectable via a built-in switch, ensuring compatibility with global power standards.
- DIN-Rail Mounting: Compact, modular design for easy installation on standard 35mm DIN rails, ideal for control cabinets and industrial enclosures.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust protection against overload, overvoltage, and short circuits.
- High Efficiency: Optimized power conversion efficiency minimizes heat generation and energy loss.
- Universal Application: Suitable for powering industrial Ethernet switches, controllers, sensors, and communication devices.
- Compact Form Factor: Space-saving design allows integration into dense control panels.
- Safety and Compliance: Built to meet international safety and EMC standards for industrial power supplies.
- Thermal Protection: Integrated thermal management ensures stable operation under varying load and temperature conditions.
- LED Indicators: Visual status indicators for power and fault conditions (typical in DR series).
- Wide Input Range: Operates from 100–120VAC or 220–240VAC, selectable via a built-in switch, ensuring compatibility with global power standards.
- DIN-Rail Mounting: Compact, modular design for easy installation on standard 35mm DIN rails, ideal for control cabinets and industrial enclosures.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust protection against overload, overvoltage, and short circuits.
- High Efficiency: Optimized power conversion efficiency minimizes heat generation and energy loss.
- Universal Application: Suitable for powering industrial Ethernet switches, controllers, sensors, and communication devices.
- Compact Form Factor: Space-saving design allows integration into dense control panels.
- Safety and Compliance: Built to meet international safety and EMC standards for industrial power supplies.
- Thermal Protection: Integrated thermal management ensures stable operation under varying load and temperature conditions.
- LED Indicators: Visual status indicators for power and fault conditions (typical in DR series).
Comprehensive Product Summary – DR-120-48 DIN-Rail Power Supply
### 1. Product Overview
Product Name: DR-120-48
Model Number: DR-120-48
Series: DR Series DIN-Rail Power Supplies
Article Number: DR-12048
Manufacturer: ORing Industrial Networking Corp.
Product Type: Industrial-grade DIN-Rail mounted AC/DC power supply
Output Rating: 48VDC, 2.5A, 120W
Input Range: 100–120VAC / 220–240VAC (selectable by switch)
The ORing DR-120-48 is a high-performance, industrial-grade DIN-Rail power supply designed to deliver stable 48VDC output power for industrial automation, networking, and control systems. It belongs to ORing’s DR series, which is engineered for rugged environments and continuous operation in demanding industrial applications. The DR-120-48 provides 120 watts of output power with high efficiency and reliability, supporting a wide input voltage range suitable for global deployment.
### 2. Key Features
- High Power Output: 120W continuous output power at 48VDC and 2.5A current capacity.
- Wide Input Range: Operates from 100–120VAC or 220–240VAC, selectable via a built-in switch, ensuring compatibility with global power standards.
- DIN-Rail Mounting: Compact, modular design for easy installation on standard 35mm DIN rails, ideal for control cabinets and industrial enclosures.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust protection against overload, overvoltage, and short circuits.
- High Efficiency: Optimized power conversion efficiency minimizes heat generation and energy loss.
- Universal Application: Suitable for powering industrial Ethernet switches, controllers, sensors, and communication devices.
- Compact Form Factor: Space-saving design allows integration into dense control panels.
- Safety and Compliance: Built to meet international safety and EMC standards for industrial power supplies.
- Thermal Protection: Integrated thermal management ensures stable operation under varying load and temperature conditions.
- LED Indicators: Visual status indicators for power and fault conditions (typical in DR series).
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model | DR-120-48 |
| Output Power | 120W |
| Output Voltage | 48VDC |
| Output Current | 2.5A |
| Input Voltage Range | 100–120VAC / 220–240VAC (selectable) |
| Input Frequency | 47–63Hz |
| Efficiency | Typically >85% (typical for DR series) |
| Mounting Type | DIN-Rail (35mm standard rail) |
| Cooling Method | Convection cooling (fanless design) |
| Operating Temperature | -20°C to +70°C (typical for DR series) |
| Storage Temperature | -40°C to +85°C |
| Humidity | 20–90% RH non-condensing |
| Protection | Overload, overvoltage, short circuit, thermal shutdown |
| Isolation Voltage | Input to output: 3.0kVAC (typical) |
| Dimensions (W x H x D) | Approx. 125 x 100 x 50 mm (typical for 120W DR models) |
| Weight | Approx. 0.8–1.0 kg |
| Material | Metal enclosure with corrosion-resistant coating |
| Mounting Orientation | Vertical on DIN rail |
| Cooling Clearance | Minimum 25mm top/bottom clearance recommended |
### 4. Functionality
The DR-120-48 functions as an AC-to-DC converter, transforming alternating current from mains supply into a stable 48VDC output suitable for powering industrial electronic equipment. The unit is designed for installation on DIN rails within control cabinets or industrial enclosures.
Operating Principle:
1. AC Input Stage: Accepts 100–120VAC or 220–240VAC input, selectable via a voltage selector switch.
2. Rectification and Filtering: Converts AC input to DC through rectification and filtering circuits.
3. Regulation Stage: Maintains a constant 48VDC output regardless of input voltage fluctuations or load variations.
4. Protection Circuits: Monitors output for overcurrent, overvoltage, and short-circuit conditions, automatically shutting down or limiting current to protect connected devices.
Use Cases and Applications:
- Industrial automation systems and PLCs
- Industrial Ethernet switches and routers
- Machine control panels and instrumentation
- Building automation and security systems
- Communication and networking equipment
- Factory floor control systems
- Transportation and railway signaling systems
Compatibility:
The DR-120-48 is compatible with a wide range of ORing networking devices, including industrial Ethernet switches, media converters, and wireless access points that require 48VDC input. It can also be used with third-party equipment requiring similar power specifications.
### 5. Components & Accessories
Included Items:
- DR-120-48 power supply unit
- User installation guide or datasheet (typical)
- Mounting clip for DIN rail attachment
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 networking equipment (e.g., RFB-M2-150, RFC-NM-SMR-1000).
- SFP Modules: For fiber-optic communication interfaces (e.g., SFP100-SS30, SFP1G-LX20).
- Power Adapters: Alternative AC/DC adapters such as PAA-121000 or PAX-482500 for non-DIN applications.
- RF Surge Protectors: For protecting connected RF equipment (e.g., RFP-NF-NM-WAG).
These accessories enable seamless integration of the DR-120-48 into ORing’s broader industrial networking ecosystem.
### 6. Installation & Setup
Installation Requirements:
- Standard 35mm DIN rail mounting surface.
- Adequate ventilation space (minimum 25mm clearance above and below).
- Ambient temperature within specified operating range.
- Proper grounding connection to ensure electrical safety.
Mounting Procedure:
1. Attach the DR-120-48 to the DIN rail by hooking the top of the unit onto the rail and pressing the bottom until it clicks into place.
2. Connect the AC input lines (L, N) and ground (FG) to the input terminals.
3. Connect the DC output terminals (+V, -V) to the load device.
4. Verify correct input voltage selection using the built-in switch (100–120VAC or 220–240VAC).
5. Power on the system and check LED indicators for normal operation.
Configuration:
- No software configuration required.
- Output voltage may be fine-tuned via an adjustable potentiometer (typical feature in DR series).
- Ensure load current does not exceed 2.5A continuous rating.
Safety Precautions:
- Disconnect power before wiring or maintenance.
- Use appropriate wire gauge for input and output connections.
- Avoid exposure to moisture or conductive dust.
- Ensure proper ventilation to prevent overheating.
### 7. Performance & Capabilities
Electrical Performance:
- Output Regulation: ±1% voltage stability under varying load conditions.
- Ripple & Noise: Typically <100mVp-p at full load (48VDC output).
- Transient Response: Fast recovery from load changes, ensuring stable voltage for sensitive electronics.
- Hold-up Time: >20ms at full load and nominal input voltage.
- Overload Protection: Automatic current limiting and recovery after fault removal.
- Overvoltage Protection: Output shutdown or clamping when voltage exceeds threshold.
Efficiency & Thermal Management:
- High conversion efficiency (>85%) reduces energy loss and heat buildup.
- Convection-cooled design eliminates the need for fans, enhancing reliability and reducing maintenance.
- Operates reliably in ambient temperatures up to +70°C with derating.
Reliability:
- Mean Time Between Failures (MTBF): >200,000 hours (typical for DR series).
- Designed for 24/7 continuous operation in industrial environments.
Limitations:
- Not suitable for outdoor use without enclosure protection.
- Requires adequate ventilation; avoid installation in sealed or high-humidity environments.
- Input voltage must match the selected range to prevent damage.
### 8. Standards & Compliance
The DR-120-48 is designed and manufactured in compliance with international safety and electromagnetic compatibility (EMC) standards applicable to industrial power supplies.
Certifications and Standards (typical for ORing DR series):
- Safety: UL 508 (Industrial Control Equipment), EN 60950-1 / IEC 60950-1 (Information Technology Equipment)
- EMC Compliance: EN 55022 Class B, EN 61000-3-2, EN 61000-3-3
- Immunity Standards: EN 61000-4-2 (ESD), EN 61000-4-3 (Radiated Immunity), EN 61000-4-4 (EFT), EN 61000-4-5 (Surge), EN 61000-4-6 (Conducted Immunity), EN 61000-4-8 (Magnetic Field)
- RoHS Compliance: Conforms to EU Directive 2011/65/EU (Restriction of Hazardous Substances)
- CE Marking: Indicates conformity with European safety and EMC directives.
These certifications ensure the DR-120-48 meets stringent industrial and environmental standards for safety, reliability, and electromagnetic performance.
### 9. Additional Information
Warranty:
Typically covered by ORing’s standard limited warranty (1 to 3 years depending on region and distributor). The warranty covers defects in materials and workmanship under normal operating conditions.
Technical Support:
ORing provides comprehensive technical support through its global network of distributors and service centers. Documentation, datasheets, and installation guides are available on the official website: [www.oring-networking.com](http://www.oring-networking.com).
Maintenance:
- Periodic inspection recommended to ensure terminal connections remain secure.
- Clean unit exterior with dry air or soft brush to remove dust buildup.
- Verify ventilation openings remain unobstructed.
- No internal user-serviceable parts; contact authorized service personnel for repairs.
Firmware/Hardware Updates:
As a hardware-only power supply, the DR-120-48 does not require firmware updates. However, ORing may release updated models or revisions with improved efficiency or compliance features.
Environmental Considerations:
- Designed for indoor industrial environments.
- Complies with RoHS and WEEE directives for environmentally responsible manufacturing and disposal.
- Packaging materials are recyclable.
Integration with ORing Ecosystem:
The DR-120-48 is part of ORing’s comprehensive industrial networking product line, which includes Ethernet switches, media converters, wireless access points, and accessories. When combined with ORing’s devices, it ensures consistent power delivery and system reliability across industrial automation networks.
### Summary
The ORing DR-120-48 DIN-Rail Power Supply is a robust, high-efficiency 120W AC/DC converter engineered for industrial automation and networking applications. Delivering a stable 48VDC output at 2.5A, it supports a wide AC input range (100–120VAC / 220–240VAC) selectable via switch, making it suitable for global installations. Its compact DIN-rail design, comprehensive protection features, and compliance with international safety standards make it an ideal choice for powering industrial Ethernet devices, controllers, and communication systems.
With its rugged construction, high reliability, and seamless compatibility with ORing’s industrial networking solutions, the DR-120-48 ensures dependable performance in demanding environments where continuous operation and electrical stability are critical.
Manufacturer Contact:
ORing Industrial Networking Corp.
Website: [www.oring-networking.com](http://www.oring-networking.com)
Category: Industrial Power Supply / DIN-Rail Mount
Product Family: DR Series
Model: DR-120-48
Output: 48VDC / 2.5A / 120W
Input: 100–120VAC / 220–240VAC (switch selectable)
Designed for Rugged Excellence.
### 1. Product Overview
Product Name: DR-120-48
Model Number: DR-120-48
Series: DR Series DIN-Rail Power Supplies
Article Number: DR-12048
Manufacturer: ORing Industrial Networking Corp.
Product Type: Industrial-grade DIN-Rail mounted AC/DC power supply
Output Rating: 48VDC, 2.5A, 120W
Input Range: 100–120VAC / 220–240VAC (selectable by switch)
The ORing DR-120-48 is a high-performance, industrial-grade DIN-Rail power supply designed to deliver stable 48VDC output power for industrial automation, networking, and control systems. It belongs to ORing’s DR series, which is engineered for rugged environments and continuous operation in demanding industrial applications. The DR-120-48 provides 120 watts of output power with high efficiency and reliability, supporting a wide input voltage range suitable for global deployment.
### 2. Key Features
- High Power Output: 120W continuous output power at 48VDC and 2.5A current capacity.
- Wide Input Range: Operates from 100–120VAC or 220–240VAC, selectable via a built-in switch, ensuring compatibility with global power standards.
- DIN-Rail Mounting: Compact, modular design for easy installation on standard 35mm DIN rails, ideal for control cabinets and industrial enclosures.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust protection against overload, overvoltage, and short circuits.
- High Efficiency: Optimized power conversion efficiency minimizes heat generation and energy loss.
- Universal Application: Suitable for powering industrial Ethernet switches, controllers, sensors, and communication devices.
- Compact Form Factor: Space-saving design allows integration into dense control panels.
- Safety and Compliance: Built to meet international safety and EMC standards for industrial power supplies.
- Thermal Protection: Integrated thermal management ensures stable operation under varying load and temperature conditions.
- LED Indicators: Visual status indicators for power and fault conditions (typical in DR series).
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model | DR-120-48 |
| Output Power | 120W |
| Output Voltage | 48VDC |
| Output Current | 2.5A |
| Input Voltage Range | 100–120VAC / 220–240VAC (selectable) |
| Input Frequency | 47–63Hz |
| Efficiency | Typically >85% (typical for DR series) |
| Mounting Type | DIN-Rail (35mm standard rail) |
| Cooling Method | Convection cooling (fanless design) |
| Operating Temperature | -20°C to +70°C (typical for DR series) |
| Storage Temperature | -40°C to +85°C |
| Humidity | 20–90% RH non-condensing |
| Protection | Overload, overvoltage, short circuit, thermal shutdown |
| Isolation Voltage | Input to output: 3.0kVAC (typical) |
| Dimensions (W x H x D) | Approx. 125 x 100 x 50 mm (typical for 120W DR models) |
| Weight | Approx. 0.8–1.0 kg |
| Material | Metal enclosure with corrosion-resistant coating |
| Mounting Orientation | Vertical on DIN rail |
| Cooling Clearance | Minimum 25mm top/bottom clearance recommended |
### 4. Functionality
The DR-120-48 functions as an AC-to-DC converter, transforming alternating current from mains supply into a stable 48VDC output suitable for powering industrial electronic equipment. The unit is designed for installation on DIN rails within control cabinets or industrial enclosures.
Operating Principle:
1. AC Input Stage: Accepts 100–120VAC or 220–240VAC input, selectable via a voltage selector switch.
2. Rectification and Filtering: Converts AC input to DC through rectification and filtering circuits.
3. Regulation Stage: Maintains a constant 48VDC output regardless of input voltage fluctuations or load variations.
4. Protection Circuits: Monitors output for overcurrent, overvoltage, and short-circuit conditions, automatically shutting down or limiting current to protect connected devices.
Use Cases and Applications:
- Industrial automation systems and PLCs
- Industrial Ethernet switches and routers
- Machine control panels and instrumentation
- Building automation and security systems
- Communication and networking equipment
- Factory floor control systems
- Transportation and railway signaling systems
Compatibility:
The DR-120-48 is compatible with a wide range of ORing networking devices, including industrial Ethernet switches, media converters, and wireless access points that require 48VDC input. It can also be used with third-party equipment requiring similar power specifications.
### 5. Components & Accessories
Included Items:
- DR-120-48 power supply unit
- User installation guide or datasheet (typical)
- Mounting clip for DIN rail attachment
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 networking equipment (e.g., RFB-M2-150, RFC-NM-SMR-1000).
- SFP Modules: For fiber-optic communication interfaces (e.g., SFP100-SS30, SFP1G-LX20).
- Power Adapters: Alternative AC/DC adapters such as PAA-121000 or PAX-482500 for non-DIN applications.
- RF Surge Protectors: For protecting connected RF equipment (e.g., RFP-NF-NM-WAG).
These accessories enable seamless integration of the DR-120-48 into ORing’s broader industrial networking ecosystem.
### 6. Installation & Setup
Installation Requirements:
- Standard 35mm DIN rail mounting surface.
- Adequate ventilation space (minimum 25mm clearance above and below).
- Ambient temperature within specified operating range.
- Proper grounding connection to ensure electrical safety.
Mounting Procedure:
1. Attach the DR-120-48 to the DIN rail by hooking the top of the unit onto the rail and pressing the bottom until it clicks into place.
2. Connect the AC input lines (L, N) and ground (FG) to the input terminals.
3. Connect the DC output terminals (+V, -V) to the load device.
4. Verify correct input voltage selection using the built-in switch (100–120VAC or 220–240VAC).
5. Power on the system and check LED indicators for normal operation.
Configuration:
- No software configuration required.
- Output voltage may be fine-tuned via an adjustable potentiometer (typical feature in DR series).
- Ensure load current does not exceed 2.5A continuous rating.
Safety Precautions:
- Disconnect power before wiring or maintenance.
- Use appropriate wire gauge for input and output connections.
- Avoid exposure to moisture or conductive dust.
- Ensure proper ventilation to prevent overheating.
### 7. Performance & Capabilities
Electrical Performance:
- Output Regulation: ±1% voltage stability under varying load conditions.
- Ripple & Noise: Typically <100mVp-p at full load (48VDC output).
- Transient Response: Fast recovery from load changes, ensuring stable voltage for sensitive electronics.
- Hold-up Time: >20ms at full load and nominal input voltage.
- Overload Protection: Automatic current limiting and recovery after fault removal.
- Overvoltage Protection: Output shutdown or clamping when voltage exceeds threshold.
Efficiency & Thermal Management:
- High conversion efficiency (>85%) reduces energy loss and heat buildup.
- Convection-cooled design eliminates the need for fans, enhancing reliability and reducing maintenance.
- Operates reliably in ambient temperatures up to +70°C with derating.
Reliability:
- Mean Time Between Failures (MTBF): >200,000 hours (typical for DR series).
- Designed for 24/7 continuous operation in industrial environments.
Limitations:
- Not suitable for outdoor use without enclosure protection.
- Requires adequate ventilation; avoid installation in sealed or high-humidity environments.
- Input voltage must match the selected range to prevent damage.
### 8. Standards & Compliance
The DR-120-48 is designed and manufactured in compliance with international safety and electromagnetic compatibility (EMC) standards applicable to industrial power supplies.
Certifications and Standards (typical for ORing DR series):
- Safety: UL 508 (Industrial Control Equipment), EN 60950-1 / IEC 60950-1 (Information Technology Equipment)
- EMC Compliance: EN 55022 Class B, EN 61000-3-2, EN 61000-3-3
- Immunity Standards: EN 61000-4-2 (ESD), EN 61000-4-3 (Radiated Immunity), EN 61000-4-4 (EFT), EN 61000-4-5 (Surge), EN 61000-4-6 (Conducted Immunity), EN 61000-4-8 (Magnetic Field)
- RoHS Compliance: Conforms to EU Directive 2011/65/EU (Restriction of Hazardous Substances)
- CE Marking: Indicates conformity with European safety and EMC directives.
These certifications ensure the DR-120-48 meets stringent industrial and environmental standards for safety, reliability, and electromagnetic performance.
### 9. Additional Information
Warranty:
Typically covered by ORing’s standard limited warranty (1 to 3 years depending on region and distributor). The warranty covers defects in materials and workmanship under normal operating conditions.
Technical Support:
ORing provides comprehensive technical support through its global network of distributors and service centers. Documentation, datasheets, and installation guides are available on the official website: [www.oring-networking.com](http://www.oring-networking.com).
Maintenance:
- Periodic inspection recommended to ensure terminal connections remain secure.
- Clean unit exterior with dry air or soft brush to remove dust buildup.
- Verify ventilation openings remain unobstructed.
- No internal user-serviceable parts; contact authorized service personnel for repairs.
Firmware/Hardware Updates:
As a hardware-only power supply, the DR-120-48 does not require firmware updates. However, ORing may release updated models or revisions with improved efficiency or compliance features.
Environmental Considerations:
- Designed for indoor industrial environments.
- Complies with RoHS and WEEE directives for environmentally responsible manufacturing and disposal.
- Packaging materials are recyclable.
Integration with ORing Ecosystem:
The DR-120-48 is part of ORing’s comprehensive industrial networking product line, which includes Ethernet switches, media converters, wireless access points, and accessories. When combined with ORing’s devices, it ensures consistent power delivery and system reliability across industrial automation networks.
### Summary
The ORing DR-120-48 DIN-Rail Power Supply is a robust, high-efficiency 120W AC/DC converter engineered for industrial automation and networking applications. Delivering a stable 48VDC output at 2.5A, it supports a wide AC input range (100–120VAC / 220–240VAC) selectable via switch, making it suitable for global installations. Its compact DIN-rail design, comprehensive protection features, and compliance with international safety standards make it an ideal choice for powering industrial Ethernet devices, controllers, and communication systems.
With its rugged construction, high reliability, and seamless compatibility with ORing’s industrial networking solutions, the DR-120-48 ensures dependable performance in demanding environments where continuous operation and electrical stability are critical.
Manufacturer Contact:
ORing Industrial Networking Corp.
Website: [www.oring-networking.com](http://www.oring-networking.com)
Category: Industrial Power Supply / DIN-Rail Mount
Product Family: DR Series
Model: DR-120-48
Output: 48VDC / 2.5A / 120W
Input: 100–120VAC / 220–240VAC (switch selectable)
Designed for Rugged Excellence.
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