Q: What equipment is this relay used in?
A: It is specifically designed for the protection and control of three-phase induction motors. It is widely used in motor control cabinets of industrial equipment such as factory automation equipment, air compressors, water pumps, fans, and conveyor belts. It prevents motor burnout due to overload, phase loss, or incorrect phase sequence.
Q: Can it be used in inverter circuits?
A: It is not recommended for use in inverter circuits. According to Omron's official technical data, the SE series motor protection relay may not function properly in inverter circuits. The harmonics of the inverter can increase the error of overload components and cause malfunctions of phase loss components. If you need to use it in inverter applications, it is recommended to choose other dedicated models.
Q: What accessories are needed for this relay? Are there any alternative models?
A:
Current Converter: Requires use with SET-3A or SET-3B current converters. The specific model selection depends on the motor current.
Installation Method: This model is panel mounted (screw terminals). For plug-in mounting, select SE-KP1EN.
Reset Method: For automatic reset, select SE-KQ1EN.
Power Supply Voltage: For AC200/220/240V power supply, select SE-K2EN; for AC380/400/440V, select SE-K4EN.
C200HW-PA204C: With replacement notification function, it can prompt when the power module needs to be replaced.
