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18.5kw Softstarter Inbuilt Bypass


Product Details: Brand Name: SAFESAVE Model Number: SJR3-3018 Rated power: 18.5kW Type: Three phase Inbuilt bypass: Yes Power supply: 380VAC±15% Packing Dimension: 38*23.5*27.5cm G.W: 5kg Application: Blender/Pump/Fan Warranty: 18 months

Product Details

Technical Parameter


Video of SJR3 series ac motor softstarter

Product Overview

The 3 phase 380V 18.5kW SJR3-3000 series online micro-power consumption motor soft starter of Zhejiang Saikong. The company has made further technical improvement in both the software and the structure of the soft starter according to the market demand. With inbuilt bypass contactor the soft starter provides complete motor protection functions including start control, running and overloading, phase failure, three-phase unbalance, over-voltage, under-voltage protection and so on with no need to further install bypass contactor and thermal relay, therefore, as another great achievement in the intelligentization of motor protection and networked technology application, it simplifies the circuit, reduces the volume, cuts the cost, makes installation and using more convenient.

Product Features:

1. Easy to control

2. Long life

3. Liquid crystal display

4. No need for control circuitry

5. Space saving

6. Labor saving

ac motor starter

SJR3-3000 soft starter

ac motor softstart

Kick mode:

a) The soft starter will be under kick starting mode when code F9 is set to 2(kick+ current limiting)or 3(kick voltage). Figure 12-3-1 and 12-3-2 show the output change wave of the kick starting mode. In some occasions with heavy load, this starting mode can be used when the motor fails to be started due to effect of the mechanical static friction force. During start, apply a relatively high fixed voltage to the motor for a limited period to overcome the static friction force of the motor load to rotate the motor. then the motor will be started in the current limiting or fixed voltage ramp method.

b) Before using this mode, the motor shall be started through the non-kick mode, and this mode shall be only used when the motor fails to rotate due to high friction, otherwise, starting with this mode shall not be used to reduce the unnecessary shock caused by large current.









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Electrical parameters of SJR3 series softstarter
Three-phase power supplyVoltage(AC) 380V±15%(220V and 660V optional)
Frequency 50Hz/60Hz
Applicable motorSquirrel cage three-phase asynchronous motor
Starting frequency When the motor is fully loaded, it shall not start more than 4 times per hour;
Less than 10 times per hour with no or little load
Protective classIP20
Anti shock Accorded with IEC68-2-27:15g, 11ms
Seismic capacityVibration intensity is 0.5G or less at an altitude less than 3000 meters
Ambient temperatureThe capacity needn't be reduced when the working temperature is between 0℃ and
40℃(At the temperature between 40℃ and 60℃, the current should be decreased 2% whenever the temperature is 1℃ higher.)
Storage temperature-25℃~70℃
Ambient moisture93% no condensation or drip, in line with IEC68-2-3
Maximum working The capacity will not be reduced when the working height is less than 1000 meters( If 
is higher than 1000 meters, the current will be decreased 5% whenever it is 100 meters higher.)
Cooling means Natural cold wind
Installation angle Vertical installation and the angle of tilt should be in the range of ±10°

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