Product Description
The DRH and WDR Series are high-performance DIN rail power supplies designed for industrial automation, control cabinets, and machinery applications. Both series incorporate comprehensive protections including overload, overvoltage, short circuit, and over-temperature protection, ensuring reliable 24/7 operation in demanding environments. With high efficiency up to 90%, natural convection cooling, and standard DIN rail mounting, these power supplies provide a space-saving, energy-efficient solution for industrial power distribution.
Functional Features
Pure Copper Transformer Sufficiently Rated Large Capacitors ENI Filtering for Interference Imported Components
High Power Stable Output Complete Functions Long Service Life
DRH/WDR Series DIN-Rail Power Supply
AC 380V to DC 24V
Switching Power Supply
Reliable Quality, Guaranteed Performance, Stable Operation
Intelligent Protection
Filter Out Risks
Durable Service Life
Superior Quality, High Cost-Effectiveness
Fast Heat Dissipation
Hollow-out and honeycomb hole design for heat dissipation.
Hollow-out and honeycomb hole design enables faster heat dissipation to protect the internal components of the switching power supply.
High-Quality Chips
Stable Output and Anti-Interference
Selected high-quality chips ensure stable and reliable operation with strong anti-interference capability.
Can be mounted on DIN rails:
TS35/7.5 or TS35/15
(National standard 35mm DIN rail)
Mounting Rail
35mm DIN Rail
Easy DIN-Rail Installation
Selected internal components for more stable, safe and reliable operation.
Product Views
Filter Capacitors
High voltage resistance, low loss, large capacity.
Pure Copper Transformers
Full-turn windings, stable performance, sufficient power output.
Terminal Blocks
High-temperature resistant materials for enhanced safety.
Overvoltage Protection
The power supply protects when the output voltage exceeds 130%~140% of the rated voltage.
Overload Protection
The power supply protects when the load power exceeds 130%~140% of the rated power.
Overcurrent Protection
The power supply output drops when the output current exceeds 115%~130% of the rated current.
Short Circuit Protection
The power supply shuts down the output when a short circuit occurs at the output terminal.
Over-Temperature Protection
The power supply automatically protects when operating at high temperatures.
Full Power Rating
Pure copper transformer with true full power rating, no false labeling, safer power usage.
Overload and Short Circuit Protection with Auto-Recovery
Undervoltage Protection Function
Filter Capacitors Pure Copper Transformers Terminal Blocks
Overvoltage Protection Overload Protection Overcurrent Protection
Short Circuit Protection Over-Temperature Protection Full Power Rating
Application
This product is widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, urban lighting, industrial control equipment, communication equipment, power equipment, medical equipment, security monitoring, computer cases, digital products, instruments and meters, and other fields.
Product Drawin
New Function:
Built-in complete relay contact (RELAY CONTACT) type alarm signal.
Connect to the DC OK relay for remote monitoring of the power supply to check if it is working normally.
AC: Alternating Current | DC: Direct Current |
+V: Connect to the positive pole of the device | COM: Connect to the negative pole of the device |
N: Connect to the neutral wire of the mains | L: Connect to the live wire of the mains |
ADJ: Output voltage adjustment | |
| :Grounding symbol (earth ground) |
Positive
DC OK Terminal Pole Negative Pole
Voltage Regulator
Indicator Light
Ground Live Live
Wire Wire Wire
Negative Positive
Live Wire Input Output Output
Product parameters

Product Name: | DIN-Rail Mounting power supply | Product Model: | DRH、WDR Series |
Output Voltage: | 12V/24V/48V | Output Current: | 2.5A~10A |
Product Power: | 60W/120W | Mounting Method: | DIN-Rail Mounting |
Product Functions: | Over voltage/Overload/Short Circuit Protection | ||

Mounting Rail: TS35/7.5 or TS35/15
Terminal Pin Definition
Pin No. | Pin Function | Pin No. | Pin Function |
1 | AC/N | 5.6 | -V |
2 | AC/L | 7 | LED |
3.4 | +V | 8 | +VADJ |
Model | DRH-60-5 | DRH-60-12 | DRH-60-24 | |
Output | DC Output Voltage | 5V | 12V | 24V |
Output Voltage Tolerance | ±2% | ±1% | ±1% | |
Rated Output Current | 6.5A | 5A | 2.5A | |
Output Current Range | 0~6.5A | 0~5A | 0~2.5A | |
Output Power | 32.5W | 60W | 60W | |
Ripple and Noise | 100mvp-p | 100mvp-p | 150mvp-p | |
Voltage Adjustable Range | -9%~+10% | ±10% | ±10% | |
Input | Input Voltage Range | 300~450VAC | ||
Frequency | 47~63HZ | |||
AC Input Current | 0.5A/380VAC | |||
Efficiency | 76% | 82% | 84% | |
Inrush Current | Cold Inrush Current 50A/380VAC | |||
Leakage Current | <1mA/380VAC | |||
Protection Features | Overload Protection | Overload protection activates at 105%~200% of rated output power | ||
Protection Mode: Hiccup mode, auto-recovery after fault removal | ||||
Overvoltage Protection | 6.8~8.2V | 15.6~17.8V | 30.6~33.2V | |
Protection Mode: Output shut-off, clamped by Zener diode | ||||
Environment | Operating Temperature & Humidity | -20℃~+50℃,20%~90%RH | ||
Storage Temperature & Humidity | -40℃~+85℃,10%~95%RH non-condensing | |||
Vibration Resistance | 0~500Hz, 2G, 10min/cycle, total 60min on all axes | |||
Safety | Withstand Voltage | Between Input & Output: 1.5KVAC | ||
Insulation Resistance | Between Input & Output: 100M ohms/500VDC | |||
Standards | Safety Standard | Refer to UL1012 | ||
EMC Standard | Refer to EN55022, CLASS A | |||
Others | Dimensions (L×W×H) | 78*93*56mm (L*W*H) | ||
Weight (Packaged) | 0.3kg/50pcs | |||
Notes | 1.All parameters are measured at 230VAC input, rated load and 25℃ unless otherwise specified. 2.Ripple and noise voltage are measured with a 20MHz bandwidth oscilloscope, with 0.1μF and 47μF capacitors connected at the end of a 12-foot twisted pair cable. 3.Tolerance is the sum of voltage setting error, voltage regulation and current regulation. | |||

Compatible with rails: TS35/7.5 or TS35/15
Terminal Block Pin Definition (TB1)
Pin No | Pin Function |
1 |
|
2 | AC/N |
3 | AC/L |
Terminal Block Pin Definition (TB2)
Pin No | Pin Function |
1,2 | DC OUTPUT +V |
3,4 | DC OUTPUT -V |
Model | DRH-120-12 | DRH-120-24 | DRH-120-48 | |
Output | DC Output Voltage | 12V | 24V | 48V |
Output Voltage Tolerance | ±2% | ±1% | ±1% | |
Rated Output Current | 10A | 5A | 2.5A | |
Output Current Range | 0~10A | 0~5A | 0~2.5A | |
Output Power | 99.6W | 120W | 120W | |
Ripple and Noise | 100mvp-p | 120mvp-p | 150mvp-p | |
Voltage Adjustable Range | -9%~+10% | ±10% | ±10% | |
Input | Input Voltage Range | 300-500VAC | ||
Frequency | 47~63HZ | |||
AC Input Current | 0.65A/400VAC | |||
Efficiency | 82% | 84% | 85% | |
Inrush Current | Cold Inrush Current 45A/400VAC | |||
Leakage Current | <1mA/400VAC | |||
Protection Features | Overload Protection | Overload protection activates at 105%~200% of rated output power | ||
Protection Mode: Constant current mode, auto-recovery after fault removal | ||||
Overvoltage Protection | 15.6~17.8V | 30.6~33.2V | 54.8~56.6V | |
Protection Mode: Output shut-off, recovery after restart when fault removed | ||||
Environment | Operating Temperature & Humidity | -20℃~+50℃,20%~90%RH | ||
Storage Temperature & Humidity | -40℃~+85℃, 10%~95%RH non-condensing | |||
Vibration Resistance | 10~500Hz, 2G, 10min/cycle, total 60min on all axes | |||
Safety | Withstand Voltage | Between Input & Output: 1.5KVAC Input to Ground: 1.5KVAC Output to Ground: 0.5KVAC | ||
Insulation Resistance | Between Input & Output, Input to Ground, Output to Ground: 100M ohms/500VDC | |||
Standards | Safety Standard | Refer to UL1012 | ||
EMC Standard | Refer to EN55022, CLASS A | |||
Others | Dimensions (L×W×H) | 65.5*125.2*100mm (L*W*H) | ||
Weight (Packaged) | 0.8kg/20pcs/17kg/0.046m³/1.64CUFT | |||
Notes | 1.All parameters are measured at 230VAC input voltage, rated load and 25℃ unless otherwise specified. | |||
2.Ripple and noise voltage are measured with a 20MHz bandwidth oscilloscope, with 0.1μF and 47μF capacitors connected to the end of a 12-foot twisted pair cable. | ||||
3.Tolerance is the sum of voltage setting error, voltage regulation rate and current regulation rate. | ||||
Unit:MM
Precautions
1.Select the appropriate power rating to extend the power supply lifespan. Please choose a product with a rated output power 30% higher than that of the electrical appliance. For example, for an appliance with 80% power, select a power supply with 100% power.
2.Due to the high working efficiency of switching power supplies, which can generally reach over 80%, when selecting the output current, you should accurately measure or calculate the maximum absorbed current of the electrical equipment.
3.Before powering on, check if the input and output leads are connected correctly to avoid damaging the equipment.
4.Power supplies with multiple outputs are generally divided into main and auxiliary outputs. The main output has better characteristics than the auxiliary output, and generally the one with a larger output current is the main output.
5.The power supply must not be installed in environments with flammable materials or where fire is likely to occur (such as wood products, plastics, cardboard, and other flammable items) to prevent fires.











