Product Details

Brief Introduction

125 hp soft starter is an electronic device used to control the starting process of an electric motor or other electric equipment, and its main function is to gradually increase the voltage or current to avoid damage to the power grid and equipment caused by the excessive inrush current generated during direct starting. Compared with traditional direct starting methods, soft starters significantly reduce mechanical and electrical stress by smoothly adjusting the starting parameters, thus extending the service life of the equipment and improving the reliability of the system.

 

The operating principle of 125 hp soft starter is usually based on power electronics, such as silicon controlled reactors (SCRs) or insulated gate bipolar transistors (IGBTs), where the output voltage is gradually increased by controlling the conduction angle of these devices, so that the motor accelerates smoothly from a standstill state to the rated speed. This progressive starting method not only reduces the current spike, but also effectively avoids the sudden torque impact of the mechanical transmission system, especially suitable for fans, pumps, conveyor belts and other loads with large inertia occasions. In addition, modern soft starters are usually equipped with a variety of protection functions, such as overload protection, phase loss protection, overheating protection, etc., to further enhance the safety of equipment operation. Some high-end soft starters are also integrated with communication interfaces to support the connection with PLC or host computer to realize remote monitoring and intelligent management.

 

125 hp soft starter has a wide range of applications, covering industry, construction, mining and other fields, especially in the need for frequent starting or high requirements for the starting characteristics of the scene excellence. Although its cost is higher than that of traditional starting methods, in the long run, soft starters bring significant economic benefits to users by reducing maintenance costs, downtime and energy saving advantages. With the continuous development of power electronics technology, the performance and functionality of soft starters are continuously optimized, and are expected to play an important role in more areas in the future.

Main Technical Parameters

Rated Voltage	AC 380V±15
Frequency	50Hz
Cooling Type	Air natural
Power Supply Unit	Three phase four wire
Ambient Temperature	-20℃~+42℃
Altitude	When the altitude above sea level exceeds 2000 meters, the cabinet should be de-rated for use
Environment	no combustible, explosive and corrosive gas, no conductive dust, no severe ventilation and crush in the mounting place.
Protection Grade	IP30