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380V 18.5kw Softstarter with Bypass Contactor


Product Details:
Brand Name: SAFESAVE
Model Number: SST-N18
Input/Output power: 18.5kw
Rated Current: 37A
Input/Output voltage: 380v three phase
Built-in bypass: Yes
Packing Dimension: 25*13.5*18cm
G.W: 2kg
Application: Mixer/pump/Fan/Textile
Warranty: 18 months

Product Details

Technical Parameter


Product Overview:

SAFESAVE SST series soft starters using 6063 high-strength aluminum for one molding, more high heat capacity and stronger heat dissipation ensure internal efficient operation of the device, after integrating the built-in bypass. With an excellent structural design, the overall volume has been reduced by 60%. 8.8CM wide, 18.4CM high, 11.5CM thick. Smaller size means more options for the designer. Broad layout space to challenge more demanding environments.

Video of SST Series ac motor soft starter

Product Features:

1. Knob of soft starting time: adjust soft starting time of soft starter and rang is 1-20S. The longer the time setting, the more gentle the soft starting process, which is helpful to reduce the impact on power grid.

2. Knob of soft stopping time: adjust soft stopping time of soft starter and range is 0-20S. In some application occasions of water pump, soft stopping function can effectively avoid" water hammer effect" generated by the halt of water pump. When the knob is adjusted to be 0S, it indicates that the stalling way of motor is free stalling, which will stop output immediately after soft starting.

3. Knob of initial voltage: adjust initial voltage of soft starter and range is 40%-70%. When the motor starts, it needs to overcome the friction under stationary state. Properly increasing the initial voltage can obtain larger starting torque, The users should refer to actual load condition to coordinate starting and stopping time, thus obtaining the best effect of smooth starting.


Advantages of SST series soft starter:

















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Electrical parameters of SST series soft starter

Standard GB 14048.6-2008/IEC 60947-4-2:2002
Rated operational voltage 200-415V(-15%+10%)
Max. length between
soft starter and cable 
Permissible ambient environmentoperation: -20℃~+60℃(consider reducing capacity if >40℃)
Storage: -40℃~+70℃
Protection gradeIP20
Permissible installation height5000m(start to reduce capacity for above 1000m)
Starting frequency ≈20 times/hour(Class10 standard load)

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