SPECIFICATIONS
| OUTPUT |
|
Model | DR-15-5 | DR15-12 | DR-15-15 | DR-15-24 |
DC Voltage | 5V | 12V | 15V | 24V |
Rated Current | 2.4A | 1.25A | 1A | 0.63A |
Current Range | 0-2.4A | 0-1.25A | 0-1A | 0-0.63A |
Rated Power | 12W | 15W | 15W | 15.2W |
Ripple & Noise | 80mVp-p | 120mVp-p | 120mVp-p | 150mVp-p |
Voltage Adj. Range | 4.75-5.5V | 10.8-13.2V | 13.5-16.5V | 21.6-26.4V |
Voltage Tolerance | ±2% | ±1% | ±1% | ±1% |
Line regulation | ±1% | ±1% | ±1% | ±1% |
Load regulation | ±1% | ±1% | ±1% | ±1% |
Setup, Rise, Hold Up Time | 1000ms, 50ms/230VAC 1000ms, 50ms/115VAC at full load 70ms/230VAC 16ms/115VAC at full load |
INPUT |
|
Voltage Range | 85 ~ 264VAC 120 ~ 370VDC |
AC Current | 0.88A/115VAC 0.48A/230VAC |
Efficiency | 77% | 84% | 83.5% | 85% |
Inrush Current | COLD START 35A/115VAC 65A/230VAC |
PROTECTION |
|
Over Load | 105%~160% rated output power |
Protection type: Constant current limiting, recovers automatically after fault condition is removed |
Over Voltage | 5.75-6.75V | 13.8-16.2V | 17.25-20.25V | 27.6-32.4V |
Protection type: Shut off o/p voltage, clamping by zener diode |
ENVIRONMENT |
|
Working Temp., Humidity | -20℃~+60℃; 20%~90% RH non-condensing |
Storage Temp., Humidity | -40℃~+85℃; 10%~95%RH |
Temp. Coefficient | ±0.03%/℃(0~50℃) |
Vibration | 10~500Hz, 2G 10min./1cycle, period for 60min, each along X, Y, Z axes, Mounting: Compliance to IE60068-2-6 |
SAFETY |
|
Withstand Voltage | I/P-O/P: 3KVAC |
Isolation Resistance | I/P-O/P: 100M Ohms / 500VDC/ 25℃/ 70%RH |
STANDARD |
|
Safety Standard | Design refer to EN60950/UL60950 |
EMC Standard | ENIEC 61558-1:2019/EN61558-2-16:2009+A1:2013 EN62368-1:2020+A11:2020 EN 60335-1:2012+A11:2014+A13:2017+A1:2019+A2:2019+A14:2019/EN62233:2008 , heavy industry level, criteria A
|
OTHERS |
|
Dimension | 25*93*56mm(W*H*D) |
Weight | 0.1Kg |
Packing | 140pcs/15KG/0.92CUFT |
NOTE |
|
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12” twisted pair-wire terminated with a 0.1μ & 47μ parallel capacitor. 3. Tolerance: includes set up tolerance, line regulation and load regulation. 4. The power supply is considered a component which will be installed into final equipment. The final equipment must be re-confirmed that it still meets EMC directives. |
Product Introduction
The DR-15 series from Yueqing Leyu Electric Automation Co., Ltd. is a 15W, single-output, DIN rail mount switching power supply designed for industrial environments. The series includes four mainstream voltage models: 5V, 12V, 15V, and 24V (e.g., DR-15-12 delivers 12V at 1.25A). It accepts a universal AC input (85~264VAC) and also works with 120~370VDC, making it suitable for deployment under various power grid conditions worldwide.
Measuring just 25mm in height, 93mm in width, and 56mm in depth, with a weight of approximately 0.1kg, the DR-15 is an excellent fit for space‑constrained applications such as small PLC cabinets, sensor power nodes, or building automation terminals.
Product Features
Ultra‑low no‑load power consumption
Standby power is below 0.5W, meeting energy saving requirements for long‑term industrial operation and helping pass system‑level efficiency certifications.
Double insulation and safety design
Class II insulation structure eliminates the need for a ground wire. Input‑output withstand voltage reaches 3KVAC, and isolation resistance is ≥100MΩ (500VDC), ensuring reliable performance even in humid or dusty environments.
Practical protection mechanisms
Overload protection uses constant current limiting, with automatic recovery once the fault is removed — no lock‑up. Overvoltage protection is implemented via Zener diode clamping. This combination protects the load while reducing on‑site maintenance frequency.
Wide rail compatibility
Supports both TS‑35/7.5 and TS‑35/15 standard DIN rails. Tool‑free mounting and removal make replacement quick and easy.
Wide operating temperature range
Full load operation from -20℃ to +60℃, relying on free air convection without forced cooling. Storage temperature range from -40℃ to +85℃ suits long shipping periods or extremely cold warehouse environments.
Product Advantages
High integration in a small footprint
Compared to open‑frame plastic power supplies of similar power, the DR-15’s rail‑mount case and terminal layout keep cabinet wiring neater and reduce installation labor by about 40%.
100% burn‑in tested
Every unit undergoes full‑load burn‑in before leaving the factory — not just sample testing. This significantly lowers field failure rates for large volume purchasers.
Solid certification foundation
While the safety standards (UL60950‑1, EN60950‑1, EN50178) are design references, the EMC performance meets heavy industrial levels (EN61000‑6‑2, criteria A), providing greater noise immunity than ordinary commercial power supplies.
Adjustable output voltage
For example, the 12V model can be fine‑tuned from 10.8V to 13.2V, helping compensate for long cable voltage drops or powering sensors with non‑standard voltage requirements.
Two‑year warranty
Direct replacement for non‑human‑damaged units, with a short service response time — important for small system integrators.
Applications
Auxiliary power for small PLCs and relay control cabinets
Power for door access controllers, thermostats, and actuators in building automation
Centralized power for factory sensors (photoelectric, proximity, pressure)
Internal power for embedded machine vision or light controllers
DIN rail mounted devices such as charging station control boards and security gateways
Typical pairing: Use a DR-15-12 to power four to six 12V proximity switches, or a DR-15-24 to drive a small solenoid valve group while still having enough leftover power for an HMI touch panel.
Frequently Asked Questions (FAQ)
Q: Can I parallel multiple DR-15 units to increase output power?
A: Direct paralleling is not recommended. The series does not include current sharing circuitry. For higher power, please choose the Leyu DR-30 or DR-60 series.
Q: Can the output be connected to a battery or a capacitive load?
A: Yes. Maximum allowable capacitive load varies by voltage (e.g., for the 12V model we recommend no more than 2000µF). If your load capacitance is very large, consider adding a soft‑start circuit or contact Leyu technical support before powering up.
Q: Will installation in a sealed plastic enclosure affect heat dissipation?
A: Yes. The DR-15 relies on natural convection. In a sealed enclosure, ensure the ambient temperature does not exceed 50℃ and keep at least 15mm of clearance around the power supply. A metal, grounded enclosure provides better heat dissipation.
Q: Why is the measured ripple slightly higher than the datasheet value?
A: Ripple values in the datasheet (e.g., 120mVp‑p for the 12V model) are measured with a 20MHz bandwidth, using a twisted pair terminated with a 0.1µF + 47µF parallel capacitor. On site, if the cable run is long or no parallel capacitor is used, readings may be higher. Adding a 47µF electrolytic capacitor close to the load terminal usually helps.
Q: What should I watch out for when using DC input?
A: The DC input voltage range is 120~370VDC. Polarity must be observed: L/+ for positive, N/- for negative. If powering from a photovoltaic array or battery bank, we recommend adding a 2A slow‑blow fuse on the input side.
Q: What is the MTBF of the DR-15 series?
A: Based on component stress analysis (per GB/T 34963), the MTBF at 40℃ is >300,000 hours (about 34 years). Actual service life may vary depending on vibration and dust conditions on site — regular inspection of terminal screw tightness is advised.
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DR-15.doc
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