Variable Speed Drive Configurator

4th January 2022  |  Drive systems

Variable speed drives (VSDs), also known as variable frequency drives (VFDs), inverter drives, adjustable speed drives, adjustable frequency drives (AFDs), and alternating current drives (AC drives), regulate the speed and torque output of motors for a variety of applications such as fans, pumps, compressors, conveyors, winding machines, and extruders.

Finding the correct variable speed drive

Dalroad’s VSD component number configurator makes it simple to choose the right variable speed drive for your application.

Do you know the supply voltage you need and the motor rated power, but not what drive you need?

Fill out our LS variable speed drive part number finder to find the variable speed drive for your application.

Variable speed drive part number configurator


Step 1

Choose the system supply voltage by clicking on phase cell. The options available are 1 phase and 3 phase.

Step 2

Type in the motor rated power

Step 3

Is the motor driving a fan or a pump (choose yes or no)

Once you have gone through step 1-3 the drive for your application will show under ‘The following LS drives(s) may be used’.

For further information on the variable speed drive range, contact our dedicated sales team on 01582 505 252 or email our sales team at

LS low voltage AC variable speed drives can save you as much as 50% on energy. Improve energy efficiency and reduce maintenance costs, from pumps and fans to mechanical handling… Think drives, Think LS!