75 hp (55 kW) Soft starter, 240v/440v/480v/660v

75 hp soft starter, 55 kW three phase 240v, 440v, 480v, 660v AC motor softstarter to protect motor from inrush current impact, buy it from manufacturer directly with wholesale price.
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Delivery date: 6 - 12 Days

75 hp motor soft starter, 55 kW three phase 240v, 440v, 480v, 660v for selection.

Model GS2-055 (240v), GS3-055 (440v), GS4-055 (480v), GS6-055 (660v).
Capacity 75 hp (55 kw)
Current 110 amps at 440v/480v, 230 amps at 240v, 70 amps at 690v
Weight 5 kgs
Dimension 270*146*160 mm
Input Voltage 3 phase 240v, 440v, 480v, 660v AC
Frequency 50Hz/ 60Hz
Adaptive Motor Squirrel-cage three-phase asynchronous motor
Starting Times It is recommended not to exceed 20 times per hour.
Communication DB9 interface, male plug, ① is RS485+, ⑥ is RS485-
Control Mode (1) Operation panel control. (2) Operation panel + external control. (3) External control. (4) External control + COM control. (5) Operation panel + external + COM control. (6) Operation panel + COM control. (7) COM control. (8) No start or stop operation.
Start Mode (1) Current-limiting to start. (2) Voltage ramp to start. (3) Torque control + current-limiting to start. (4) Torque control + voltage ramp to start. (5) Current ramp to start. (6) Voltage current-limiting double closed-loop start.
Stop Mode (1) Soft stop. (2) Free stop.
Protective Function (1) Open loop protection for external instantaneous stop terminals. (2) Over-heat protection for soft starter. (3) Protection for too long starting time. (4) Input open phase protection. (5) Output open phase protection. (6) Unbalanced three-phase protection. (7) Starting over current protection. (8) Running overload protection. (9) Under voltage protection for power voltage. (10) Overvoltage protection for power voltage. (11) Protection for fault parameter setting of the soft starter. (12) Load short circuit protection. (13) Auto restart or incorrect wiring protection. (14) Incorrect wiring protection of external control stop terminals.
Ambient Place to be used Indoor location with good ventilation free from corrosive gas and conductive dust.
Altitude Below 1000M. It has to increase the soft starter rate power when the altitude is more than 1000M.
Temperature -30 +55 oC
Humidity 90%RH without dew condensation.
Vibration <0.5G
Structure Enclosure IP 20
Cooling Natural wind cooling.


Tips: Can a soft starter control the induction motor in variable speed?
A soft starter can NOT control induction motor speed, it only restricts motor starting current by applying the voltage in a ramp to avoid inrush current impact on the motor. To vary the speed, you should go for a variable frequency drive which can control the induction motor speed along with starting torque, but cost much more than a soft starter. The selection between VFD and soft starter depends on lots of factors, you can check our blog post regarding VFD vs Soft Starter for details.

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