The FEAS-softstarter is an electronic starter for AC-motors of the squirrel cage winding with slip-ring rotor constructional type. The function of a soft starter is to allow AC-motors to accelerate smoothly up to nominal speed, whereby the ohmic resistance has been replaced by a low-loss, bidirectional power control semiconductor. The motor is connected up so that the electronic resistor is in series with one of the three supply wires.
No star delta run-up necessary
soft and shock-free run-up
Reducing the starting current
little run-up noise
Adjustable run-up time
Adjustable starting torque
Operating status shown by LED
Integrated relay with potential-free change-over contacts
small dimensions
Suitable for the tropics
Safety acc. to VDE, EN, UL, CSA