Soft starter is a device to adjust start-up current and start-up torque for drive systems to gradually reach the rated operation. Applications are diverse as there is an advantage of extended life span of the machines due to minimized mechanical stresses.

Soft starter operation
Gradual acceleration of electric motors by control of current and voltage results in
- Minimized exciting current
- Extended life span due to minimal electrical and mechanical stresses Maintenance cost savings from monitoring and control functions