20 hp (15 kW) Soft starter, 30 A, 3ph 220v/380v/480v

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$389.21

Cheap price 20 hp soft starter, 15 kW three phase 220v, 380v, 480v AC motor soft start, reduce motor starting current & voltage, protect motor from over-voltage, over-current and phase unbalance etc.

Input Voltage (Three Phase) ±15%
Communication Interface

SKU: GS-015

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Delivery date: 6-12 days

Overview
Related Video

20 hp soft starter, 15 kW three phase 220v, 380v, 480v, 690v AC motor starter for selection.

Model			GS2-015 (220v, 240v), GS3-015 (380v, 400v, 415v), GS4-015 (460v, 480v), GS6-015 (575v, 690v).
Capacity			20 hp (15 kw)
Current			30 amps at 380v/480v, 60 amps at 220v, 22 amps at 960v
Weight			5 kgs
Dimension			270146160 mm
Input	Voltage		Three-phase 240v, 380v, 460v, 690v AC
	Frequency		50Hz/ 60Hz
Adaptive Motor			Squirrel-cage three-phase asynchronous motor
Starting Times			It is recommended not to exceed 20 times per hour.
485 Communication			DB9 interface, male plug, ① is RS485+, ⑥ is RS485-
Control Mode			Operation panel control. Operation panel + external control. External control. External control + COM control. Operation panel + external + COM control. Operation panel + COM control. COM control. No start or stop operation.
Start Mode			Current-limiting to start. Voltage ramp to start. Torque control + current-limiting to start. Torque control + voltage ramp to start. Current ramp to start. Voltage current-limiting double closed-loop start.
Stop Mode			Soft stop. Free stop.
Protective Function			Open loop protection for external instantaneous stop terminals. Over-heat protection for soft starter. Protection for too long starting time. Input open phase protection. Output open phase protection. Unbalanced three-phase protection. Starting over current protection. Running overload protection. Under voltage protection for power voltage. Overvoltage protection for power voltage. Protection for fault parameter setting of the soft starter. Load short circuit protection. Auto restart or incorrect wiring protection. 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.

Details

Tips: Soft starter protection functions
Soft starter has overload protection, open-phase protection, overheating protection, measurement loop parameters and other functions.

Overload protection: Soft starter introduces a current control loop, so it can trace and detect motor current changes at any time. By increasing the overload current setting and inverse time control mode, it can achieve the overload protection function. When the motor overload, it will turns off the thyristor and send an alarm signal.
Open-phase protection: While working, the soft starter detects changes in three-phase line current at any time, once the break occurs, it will make a reaction of open-phase protection.
Overheat protection: Through the soft starter internal thermal relay to detect the temperature of the thyristor radiator, once the radiator temperature exceeds the allowable value, the soft starter will automatically turns off the thyristor and send an alarm signal.
Measuring loop parameters function: When the motor is working, the detector in the soft starter monitors the running state of the motor all the time, and sends the monitored parameters to the CPU for processing. The CPU will analyze, store and display the monitoring parameters. So the motor soft starter also has the function of measuring loop parameters.
Other functions: Through the combination of electronic circuits, the soft starter can also achieve various interlock protection in the system.

Soft Starter Works with a Bypass Contactor

Soft starter works with a bypass contactor saving energy by eliminating thyristor losses during the run. The bypass contactor shunts the current flowing through the soft starter switch circuit to reduce heat accumulation in the soft starter power electronics during motor operation. This provides maximum efficiency and prolongs the life of soft-start switching components because they only work during the start and stop cycles of the motor.

How to Change the Soft Starter Rated Current

How to connect bypass contactor to soft starter

Soft Starter Bypass Output Failure: How to Continue Motor Operation

In this video, you are shown how to use an AC contactor in conjunction with a soft starter as a backup solution to start a motor when the soft starter's bypass output is not operational. The strategic combination of a soft starter and an external bypass contactor provides a fail-safe mechanism for motor starting and operation, especially when faced with challenges with the soft starter bypass output.

Delayed Soft Start of A Motor

In this video, we introduce how to use a soft starter together with a bypass contactor to achieve a delayed soft start of a motor.

Existing reviews of 20 hp (15 kW) Soft starter, 30 A, 3ph 220v/380v/480v

About automatically soft start

If the input voltage drops and is restored again, will these automatically soft start again.

From: Shullion | Date: 26/02/2025