Transition Networks 48 VDC Industrial Power Supply

Engineered around Mean Well’s SDR-120-48PS platform, this 48 VDC, 2.5 A industrial power supply delivers reliable, efficient power for automation, distributed control, and industrial peripherals. The device is purpose-built for crowded electrical cabinets, featuring a narrow DIN-rail footprint that preserves cabinet space while delivering steady, regulated 48 V DC power to a wide range of equipment—from PLCs and sensors to remote I/O modules and industrial cameras. With universal AC input, solid protection, and easy integration, this power supply helps ensure equipment uptime in manufacturing floors, data centers, and process control environments.

• High-capacity, precise 48 VDC output: Delivers up to 2.5 A continuous current with tight voltage regulation, supporting a broad array of 48 V loads in industrial networks. The design minimizes output ripple and drift under changing load conditions, enabling stable operation for sensors, actuators, and control modules even as line conditions shift throughout the day.

• Universal input for global deployments: With a wide AC input range (85-264 VAC, 47-63 Hz), this power supply adapts to regional utility standards without the need for transformers or adapters. Its universal input simplifies stocking and installation in multinational facilities and reduces spare-part complexity for field service teams.

• Narrow DIN-rail form factor for crowded cabinets: Built for tight spaces, the narrow profile fits alongside other DIN-rail mounted devices in standard electrical enclosures. Its robust metal housing delivers dependable performance in harsh environments, while mounting on a conventional DIN rail keeps wiring neat and accessible for service and upgrades.

• Comprehensive protection for continuous uptime: Includes safeguards such as short-circuit protection, overcurrent protection, overvoltage protection, and over-temperature protection. These protections help prevent damage to connected equipment and reduce the risk of cascading failures in automation networks. The supply’s fault management features enable safe recovery and quick fault isolation for maintenance teams.

• Ease of integration with remote and monitoring capabilities: Designed with practical features for industrial deployments, including potential remote on/off capability and straightforward wiring. The service-friendly design supports straightforward replacement, diagnostics, and integration with energy management and monitoring systems in modern automation environments.

Technical Details of Transition Networks 48 VDC Industrial Power Supply

• Model: Mean Well SDR-120-48PS (DIN-rail, narrow)

• Output: 48 V DC continuous, up to 2.5 A

• Power Rating: 120 W maximum output power

• Input Voltage: Universal AC input, 85-264 VAC, 47-63 Hz (automatic range)

• Efficiency: High efficiency design suitable for energy-conscious installations, contributing to lower heat output and reduced cooling loads

• Mounting: DIN Rail mount (EN 60745 standard), narrow profile for tight enclosure spaces

• Protection: Short-circuit protection, overcurrent protection, overvoltage protection, and over-temperature protection

• Safety/Compliance: Built to meet global safety and EMI/EMC expectations for industrial equipment (design intent aligned with common EN/IEC standards). Suitable for harsh industrial settings with dependable mean-time-between-failure characteristics.

• Operating Environment: Designed for industrial environments; intended for stable operation across typical factory temperature ranges with adequate ventilation

how to install Transition Networks 48 VDC Industrial Power Supply

• Plan and verify the installation space: Confirm the DIN rail in the control cabinet is clean, free of dust, and has adequate ventilation. Ensure the enclosure allows access for wiring and inspection, and that the ambient temperature stays within the device’s operating range to maximize life and performance.

• Mount the unit on DIN rail: Engage the DIN-rail mounting hook, slide the supply onto the rail, and snap it into place. Verify it is securely fastened and level to prevent vibration-induced connections during operation.

• Connect the AC input: Wire the universal AC input terminals according to local electrical codes. Use correctly rated conductors and torque specifications to ensure solid connections. If the unit supports a remote enable/disable function, wire the control line as needed for the automation sequence.

• Connect the 48 VDC output to the load: Attach the positive and negative output terminals to the 48 V loads, such as PLCs, sensors, or I/O modules. Use appropriate wire gauges for the total current and keep output wiring short and well-organized to minimize voltage drop and interference.

• Verify operation and safety checks: Power the unit and measure the output voltage at the load to confirm it remains within tolerance. Check for heat buildup, confirm there are no abnormal sounds or smells, and ensure protective earth connections are secure. If a fault occurs, consult the protective indicators and reference the installation manual for fault isolation steps.

• Documentation and testing: Label the device, note the model and serial information for service records, and run a brief functional test of connected equipment under typical loads to confirm stable operation. Integrate with any monitoring systems if remote fault or voltage monitoring is required.

Frequently asked questions

• Q: What is the output voltage and current? A: The unit provides 48 V DC at up to 2.5 A, delivering up to 120 W of continuous power for 48 V loads in industrial environments.

• Q: What input voltage range does it accept? A: It accepts a universal AC input from approximately 85 to 264 VAC, 47 to 63 Hz, allowing usage across multiple regions without a transformer swap.

• Q: Is DIN-rail mounting supported? A: Yes, this supply is designed for DIN-rail mounting in standard industrial electrical cabinets, with a narrow profile to maximize panel space.

• Q: What protections are included? A: The unit provides short-circuit protection, overcurrent protection, overvoltage protection, and over-temperature protection to safeguard both the power supply and connected equipment.

• Q: Can I remotely control the output? A: Some models offer remote on/off or enable control; check the specific wiring diagram for your SDR-120-48PS model to configure remote control if available.