25 hp (18 kW) Soft starter, 230v/415v/480v/660v

25 hp soft starter, 18 kW (18.5 kW) three phase 230v, 415v, 480v, 660v affordable motor soft starter direct sale from manufacturer from China.
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Delivery date: 6 - 12 Days

25 hp AC motor soft starter, 18 kW three phase 230v, 415v, 480v, 660v motor starter.

Model GS2-018 (230v), GS3-018 (415v), GS4-018 (480v), GS6-018 (660v).
Capacity 25 hp (18 / 18.5 kw)
Current 37 amps at 380/480v, 75 amps at 220v, 26 amps at 690v
Weight 5 kgs
Dimension 270*146*160 mm
Input Voltage 3 phase 230v, 415v, 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: Soft Starter vs Variable Frequency Drive
A motor soft starter only allows a part of each wave of the available power through to the induction motor, creating an effect similar to a lower voltage start, and increasing that voltage gradually, until the motor has reached normal speed. In other words, the motor is still supplied power at the same frequency at the supply network. This is a much simpler device than a variable frequency drive.

A variable frequency drive, on the other hand supplies a (synthesized) lower frequency to the motor during the start. It attempts to maintain a reasonably constant ratio between this frequency, and the effective voltage supplied to the induction motor. In terms of the effect on the motor this means that with a soft starter, the rotor must be able to handle the same energy during start as it would during a DOL or a Y/D start, but the effect of the supply network is gentler with the soft starter than with DOL or Y/D start.

With a variable frequency drive, the rotor of the induction motor will only have to handle the slip-energy during the start, this energy may only be a fraction of what would be required with the soft starter, while the effects on the supply grid is very similar to that for the soft starter.

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