WDR-240W is an economical and slim 240W rail type power supply that meets German industrial standards. It is suitable for installation on TS-35/7.5 or TS-35/15 tracks and is designed with a width of 63mm inside the cabinet to save space. The entire series uses AC input from 350Vac to 500Vac. Designed with a metal shell, it is easy to improve the heat dissipation consumption of the machine, with a working efficiency of up to 89%. The entire series can operate in am bient temperatures ranging from -30 ℃ to 70 ℃ under air circulation conditions. It has a constant current mode overload protection function and is suitable for various inductive or capacitive load applications.
Features :
Input voltage range: 350 – 500 VAC / 470 – 700 VDC
Constant current design, suitable for inductive,capacitive and other complex equipment
Ultra-wide operating temperature range from -30°C to +70°C
Perfect protection functions, short circuit/overload/overvoltage
Double panel reflow soldering process, higher reliability and consistency
100% full-load aging test
Application:
Industrial control system
Semiconductor manufacturing equipment
Factory automation
Mechanical and electrical equipment
Q1: What are the primary advantages of using a 380V AC wide-input DIN rail power supply like the WDR-240W?
A: The WDR-240W accepts a broad 340–550V AC wide-range input (compatible with 3-phase 380V/400V/480V systems or two-phase operation). This allows direct connection to industrial 3-phase power grids without requiring a step-down transformer, reducing equipment cabinet space, lowering overall wiring costs, and improving power system reliability in harsh factory environments.
Q2: Can the WDR-240W operate continuously at full load in high-temperature control cabinets?
A: Yes. Engineered with high-efficiency switching topology and heavy-duty metal housing for natural convection cooling, the WDR-240W operates reliably across a wide temperature range (-30°C to +70°C). It delivers full 240W rated power without needing internal cooling fans, ensuring quiet operation and extended lifespan in dust-prone industrial environments.
Q3: What built-in electrical protection mechanisms does the WDR-240W include?
A: To safeguard sensitive PLCs, industrial PCs, and automation actuators, the WDR-240W is equipped with comprehensive protection circuits, including Overload Protection (constant current limiting with auto-recovery), Overvoltage Protection, Over-temperature Protection, and Short Circuit Protection.
Q4: Is the WDR-240W compatible with standard TS-35 DIN rail mounting systems?
A: Absolutely. The unit features a heavy-duty integrated metal mounting clip that snaps directly onto standard TS-35/7.5 or TS-35/15 industrial DIN rails. Its slim vertical profile optimizes cabinet DIN rail space for high-density control box layouts.
Need other wide-input voltage solutions? Explore our complete catalog of 380V Wide-Input DIN Rail Power Supplies engineered for 3-phase industrial control cabinets.
Specifications
| Model | WDR-240-12 | WDR-240-24 | WDR-240-48 | |
| Output | DC output voltage | 12V | 24V | 48V |
| Rated current | 20A | 10A | 5A | |
| Ripple and noise (Max) | 120mVp-p | 120mVp-p | 150mVp-p | |
| Voltage adjustment range | 10.2~13.8V | 21.6~27.5V | 42~54V | |
| Start-up and rise time | 1000ms,30ms/380VAC(full load) | |||
| Hold time | 30ms/380VAC(full load） | |||
| Input | AC input current | 330～500VAC 460~700VDC | ||
| Frequency range | 50～60Hz | |||
| Efficiency | 85% | 88% | 89% | |
| Input current | 1.2A/380VAC | |||
| Power factor | 0.5A/380VAC | |||
| Surge current | 50A/380VAC | |||
| Leakage current | ＜5.0mA/400VAC | |||
| Protective features | Overload protection | 105% to 150% overload protection during startup for the rated output power | ||
| Protection mode: Constant current limit. It can automatically recover after the abnormal load condition is removed. | ||||
| Overvoltage protection | 14~17V | 28~33V | 55~65V | |
| Protection mode: Clamp the output voltage, and automatically recover after the abnormal condition is removed | ||||
| Short-circuit protection | Positive and negative terminals of the output short-circuited | |||
| Protection mode: Constant current mode, automatically recover after the abnormal condition is eliminated | ||||
| Function | Function (DC-OK signal) | Relay contacts (maximum): 30V / 1A resistive load | ||
| Environment | Operating environment | -30℃ to +70℃ (Please refer to the load reduction curve) | ||
| Safety | Pressure resistance | I/P~O/P：1000VAC I/P~FG：1500VAC O/P~FG：500VAC | ||
| Insulation resistance | I/P~O/P, I/P~FG, O/P~FG:100M Ohms/500VDC/25℃/70%RH | |||
| Compliant Standard | EMC | GB9254 CLASS A | ||
| Safety Specifications | Refer to GB4943.1-201 | |||
| Others | Size | 63*125.2*113.5mm（W*H*D） | ||
| Packaging | 0.75kg/20pcs/13kg/1.16CUFT | |||
| Remarks | 1. Unless otherwise specified, all parameters are the measured values under the conditions of 400VAC input voltage, rated load and 25°C. 2. The ripple and noise voltages were measured with a 20MHz bandwidth oscilloscope at the end of a 12-inch twisted pair cable with 0.1μ and 47μ capacitors. 3. Accuracy: includes set error, linear adjustment rate and load adjustment rate. 4. The power supply is regarded as an independent component, but the final power supply still needs to be confirmed for electromagnetic compatibility in combination with the terminal equipment. | |||
Dimensional Drawing
Block diagram
Further information or a personal consultation? Our products and know-how are there to provide solutions.
Optimized by Seraphinite Accelerator
