The SFT30 series is a versatile and multi-functional soft starter for motors from 30 to 500 kW. It works with three-phase motors with supply voltage 3 x 380 V and 3 x 690 V, has control voltage 220 V. Various additional embedded options are available – Modbus RTU and Profibus network protocols, additional analogue output.
Specifications
Input
3x690V
Output power
55kW
Rated output current
58A
Build-in options
Profibus
Application
reciprocating and screw compressors
agitators, centrifugal and submersible pumps
fans
conveyors
ball mills
centrifuges
crushers
extruders
etc.
Advantages
This series provides soft start and stop of the electric motor, has advanced protection functions, can operate in heavy environmental conditions (operating temperature from 0 to +50 °C). The SFT30 has 3 digital inputs and 3 special inputs (energy storage, generator operation, 2 parameter sets, external fault, fault reset), 3 relay outputs, 1 analogue input (thermistor). In addition to the standard functions, the device has a number of additional functions: forced start, 6 acceleration and braking curves for different applications, diesel generator operation, mechanical brake control, dynamic braking, event log.
