ZJRG series soft starter control panel is suitable for three-phase AC squirrel cage induction motors.The control panel is mainly composed of a soft starter, AC contactor (bypass) and circuit breaker (short circuit protection). Have the function of protecting the motor improvement in motor starting and running process; adopt closed-loop control, greatly improving the stability and reliability of soft torque start and soft torque stop, run by the bypass contactor, the power consumption is close to zero.
Model Description:
Order information
Soft starter cabinet have many specification , different high technical request . Please make sure you have a detailed understanding of how the equipment load works and performance indicators, and select the electrical control cabinet features before ordering.
CHZIRI Electrical will offer the clients standard design if no requirements marked. So please specify in the contract if you have special requirements.
Main Technical Indications
●Power voltage three-phase phase 380V±15%,frequency :50/60HZ.
●Start times: less than 20 times per hour.
●Altitude: less than 3km, if beyond 3km, shall improve power.
●Environment temperature: -30~+55℃.
●Environment humidity: less than 90%, No dew condensation phenomenon.
●Application: no corrosive gas, no Conductive dust, good ventilation condition.
●Protect class: IP20、 IP30.
Technical Features
●Starting time can be preset, set different starting time according to different load types.
●Initial voltage can be preset, different initial voltage is set according to different load type.
●With current limiting function, the starting current does not exceed the setting current value.
●Stop mode have soft stop and free stop.
●Bypass contactor function, starting complete, can be connected to bypass contactor.
●One soft starter run multiple motors, One soft starter can start multiple motors in turn.
●Have 14 kinds of protection functions.
Application load type
This soft starter cabinet can meet the requirement of most heavy load. The table below is just for reference only.
Varieties of Application Loads |
Start Ramp Time (S) |
Stop Ramp Time (S) |
Inception Voltage (%) |
Voltage Start (Maximum Current-limiting Value) |
Current-limiting Start |
Centrifugal Pump |
16 |
20 |
40 |
4 |
2.5 |
Ball Grinder |
20 |
6 |
60 |
4 |
3.5 |
Fan |
26 |
4 |
30 |
4 |
3.5 |
Piston Type Compressor |
16 |
4 |
40 |
4 |
3 |
Light Load Motor |
16 |
2 |
30 |
4 |
3 |
Elevating Mechanism |
6 |
10 |
60 |
4 |
3.5 |
Mixer |
16 |
2 |
50 |
4 |
3 |
Crusher |
16 |
10 |
50 |
4 |
3.5 |
Screw Compressor |
16 |
2 |
40 |
4 |
3 |
Spiral Conveyor |
20 |
10 |
40 |
4 |
2 |
Leather Belt Conveyer |
20 |
10 |
40 |
4 |
2.5 |
Heat Pump |
16 |
20 |
40 |
4 |
3 |
Schematic diagram
ZJRG/1T1 Wiring Diagram
ZJRG/1T3 Wiring Diagram
Related Products
News Center
> In which industries do Frequency Inverters have more significant energy-saving effects?
In industries that require frequent adjustments to motor speed and load changes, the energy-saving effect of the inverter is more prominent.
Release Date:2024-11-30> What do I need to pay attention to when using and maintaining frequency converter?
Correct use and maintenance of the frequency converter can significantly extend its service life, enhance the reliability and stability of the equipment, and ultimat...
Release Date:2024-10-22> How to choose a good Frequency Converter
Selecting a high-frequency converter involves several key considerations to ensure it meets your specific application needs. Here’s a structured approach to help you...
Release Date:2024-09-07> What is a Frequency Inverter?
A frequency inverter is designed to manage the operation of electric motors by adjusting the frequency of the input power. By controlling the speed and torque of the...
Release Date:2024-09-02