Constant Current DIN Rail Power Supply with Variable Output

DIN Rail Mount Power Supply with Constant Current Mode

ADM stocks the MEAN WELL DRA series DIN rail power supplies.

These DIN rail power supplies are unique, becuase as well as behaving like a standard constant voltage DIN rail power supply, they can be used in constant current mode.

MEAN WELL DRA-40 Series Power Supply
MEAN WELL DRA-40 Series Power Supply

 

There are 4 models within the range: 

Model Number

Output Voltage

Max Current

Constant Current Region

DRA-40-12 12 ~ 15V  3.34A 3 ~ 12V
DRA-40-24 24 ~ 30V  1.7A 3 ~ 24V
DRA-60-12 12 ~ 15V  5A 3 ~ 12V
DRA-60-24 24 ~ 30V  2.5A 3 ~ 24V

 

The output voltage can be adjusted using the built-in potentiometer, which is easily accessed from the front of the power supply.  

The constant current level can be programmed dynamically by applying either a 1-10V input signal, a 10V PWM signal, or by using a 100Kohm potentiometer. 

These power supplies are perfect for use on industrial DC applications where the output of the power supply is varied as part of an automated process, and/or where a constant current is required. For example: 

  • Small battery charging applications. 

  • Industrial DC applications where a current limit is required to protect sensitive equipment. 

  • Powering constant current light fittings from an electrical enclosure in industrial environments. 

For further information, please do not hesitate to contact ADM Systems

31 July 2025