DRL-48V120W1AA - Delta 2.5A 48V DIN Rail Power Supply
The Delta DRL-48V120W1AA DIN Rail Power Supply is designed for stable DC output in industrial automation systems requiring reliable 48V power distribution. It functions as a 48V SMPS, delivering 120W output with 48V voltage and 2.5A current, making it suitable for control panels, communication systems, and industrial devices. The unit supports an input range of 85–264 VAC and achieves efficiency up to 90% at full load. It also allows output voltage adjustment from 44 to 56 VDC, supporting flexible application requirements. As part of Delta automation solutions, it belongs to the industrial power supply range and is included in the LYTE series power units used in DIN rail-based industrial applications.
| Brand | Delta |
| Product Type | SMPS |
| Product | DRL-48V120W1AA |
Delta 2.5A 48V DIN Rail Power Supply DRL-48V120W1AA Technical Specifications:
| Specification | Value |
|---|---|
| Output Current | 2.5A |
| Output Voltage | 48V |
| Output Power | 120W |
| Output Voltage Adjustment Range | 44-56Vdc |
| Line Regulation | < 0.5% (@ 85-264Vac, 100% load) |
| Load Regulation | < 1% (0-100% load) |
| PARD | < 150mVpp @ > -10°C to +70°C < 300mVpp @ ≤ -10°C to -20°C |
| Start-up Time | 200ms typ. @ 115Vac & 230Vac (100% load) |
| Hold-up Time | 20ms typ. @ 115Vac (100% load) 90ms typ. @ 230Vac (100% load) |
| Dynamic Response (Overshoot & Undershoot O/P Voltage) | ± 10% @ 85-264Vac input, 0-100% load (Slew Rate: 0.1A/μs) |
| Start-up with Capacitive Loads | 4,000µF Max |
| Rise Time | 30ms typ. @ nominal input (100% load) |
| Nominal Input Voltage | 100-240Vac |
| Input Voltage Range | 85-264Vac |
| Nominal Input Frequency | 50-60Hz |
| Input Frequency Range | 47-63Hz |
| DC Input Voltage Range | 120-375Vdc |
| Input Current | 2.2A typ. @ 115Vac, 1.2A typ. @ 230Vac |
| Efficiency at 100% load | 89%typ.@115Vac, 90% typ.@ 230Vac |
| Inrush Current | 20A typ. @ 115Vac, 40A typ. @ 230Vac |
| Leakage Current | < 0.25mA @ 264Vac |
| Case Chassis / Cover | SGCC / Aluminium |
| Indicator | Green LED (DC OK) |
| Cooling System | Convection |
| Unit Weight | 0.54 kg (1.19 lb) |
| Vibration (Operating) | IEC 60068-2-6, Sine Wave: 10Hz to 500Hz @ 19.6m/s² (2G peak); displacement of 0.35mm; 10 min per cycle, 60 min for X direction |
| Shock Test (Operating) | IEC 60068-2-27, 27, Half Sine Wave: 10G for duration of 11ms; 1 time in X axis |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Power De-rating | -10°C to -20°C de-rate power by 2%/°C > 40°C de-rate power by 1.67% / °C @ 115Vac > 50°C de-rate power by 2.5% / °C @ 230Vac < 100Vac de-rate power by 1% / Vac |
| Operating Humidity | 5 to 95% RH (Non-Condensing) |
| Shock Test (Non-Operating) | IEC 60068-2-27, 27, Half Sine Wave: 50G for duration of 11ms; 3 times per direction, 9 times in total |
| Vibration (Non-Operating) | IEC 60068-2-6, Random: 5Hz to 500Hz; 2.09Grms; 20 min per axis for all X, Y, Z directions |
| Operating Altitude | 0 to 5,000 Meters (16,400 ft.) |
| Pollution Degree | 2 |
| Power Dissipation | 0% load: : 1.21W @ 115Vac & 230Vac 100% load: 13.3W @ 115Vac & 230Vac |
| Input Terminal | 3 Pins (Rated 600V/35A) |
| Output Terminal | 6 Pins (Rated 300V/28A) |
| Signal Terminal | 6 Pins (Rated 300V/28A) |
| Noise Sound Pressure Level (SPL) | < 25dBA |
| Mounting Rail | Standard TS35 DIN Rail in accordance with EN 60715 |
| Wire | Input: AWG 18-8 Output: AWG 22-12 Signal: AWG 24-12 |
The Delta DRL-48V120W1AA power supply is built to deliver stable and efficient DC output in systems that require consistent voltage and continuous operation. It supports industrial applications where a reliable 48V supply is required for control and communication devices. Its DIN rail mounting design enables structured installation inside control panels while maintaining compact layout efficiency.
In operation, the unit maintains stable output through low ripple and controlled regulation, ensuring consistent performance under varying load conditions. The convection cooling design allows silent operation without external fans, while the metal enclosure supports effective heat dissipation. Features such as fast start-up response and stable dynamic behavior improve overall system reliability.
From an application perspective, the Delta DRL-48V120W1AA aligns with systems requiring stable voltage adjustment, reliable current output, and flexible installation. Its ability to operate across wide temperature ranges, high humidity levels, and varying altitude conditions ensures compatibility with industrial environments. This connection between power capability, durability, and installation flexibility makes it a practical solution within the Delta SMPS category.
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