How to choose a motor protector
Mar 13, 2023|
View:204Motor protectorGenerally refers to the motor protector, the function of the motor protector is to protect and control the motor, and give an alarm or protection control when the motor has overcurrent, undercurrent, phase failure, stall, short circuit, overvoltage, undervoltage, leakage, three-phase imbalance, overheating, grounding, bearing wear, stator and rotor eccentricity, winding aging. So how should we choose a suitable motor protector? In response to this question, the following is a detailed introduction!
Motor protectorThe model selection has a relationship between the application of motor and protection device.
1. Motor level: first understand the specifications of the motor protector, motor function characteristics, safety protection form, rated current, rated voltage, power supply frequency, flame retardant grade, etc. This content can basically provide users with a reference for how to correctly use, maintain and select motor protectors.
2. Environmental conditions: mainly refer to normal temperature, high temperature, severe cold, corrosion, vibration, dust, altitude, electromagnetic radiation, etc.

3. Main purpose of the motor: mainly refers to the required characteristics of driving industrial equipment, such as centrifugal fans, centrifugal water pumps, air compressors, CNC lathes, oil and gas field pumps and other different load mechanical equipment characteristics.
4. Automatic control system level: the control modes include manual, automatic, local control, remote control, stand-alone operation, production line centralized control system, etc. The starting methods include direct, step-down, star-delta, frequency-sensitive rheostat, soft starter, soft start and other starting methods.
5. Other aspects: whether the user is casual or serious about on-site production monitoring and management, and the severity of the impact of abnormal shutdown on production.
The above is some introduction on how to choose a motor protector. Changzhou Ainuo Electronic Technology Co., Ltd. is a manufacturer of motor protectors. We have rich experience in producing and selling motor protectors. The motor protectors we produce are not only of good quality but also relatively inexpensive. If you have any needs, please feel free to consult us!






