High-Performance Three-Phase Motors for Diverse Industrial Needs

Proper three - phase motor wire connection is the cornerstone of ensuring the reliable operation of your machinery. Zhongshan Pengfei Electrical Appliance Co., Ltd. offers a range of three - phase motors, and we are committed to helping our customers with every aspect of wire connection. Most three - phase motors come with a terminal box where the wire connections are made. Inside this box, you will find labeled terminals corresponding to the different phases of the motor. When connecting the wires, it is essential to match the correct phase wires from the power supply to the appropriate terminals on the motor. For a star - connected three - phase motor, which is suitable for motors of three kilowatts and below in many cases, the connection involves joining the first or last ends of the three - phase stator windings together. Then, the other three ends are connected to the three - phase alternating current supply, denoted as U, V, and W. This connection method helps to reduce the starting current as the motor coil in a star - connected motor passes through a lower voltage (220 V in some systems). On the other hand, for a triangle - connected three - phase motor, typically used for motors of 4 kW and above, the head and tail of the three - phase stator windings are connected correspondingly. For example, the first end of the first phase winding is connected to the tail end of the third phase winding, and this combination is considered as the U phase. The second winding's head end is connected to the tail end of the first winding to form the V phase, and the third winding's head end is connected to the tail end of the second winding to form the W phase. These connections are then connected to the U, V, and W phases of the ac power supply. To ensure a secure and long - lasting connection, it is recommended to use appropriate wire - connecting tools and follow safety procedures. Our products are designed to meet high - quality standards, and proper wire connection is an important part of maintaining this quality. If you are unsure about the wire connection process for your three - phase motor, our experienced technicians can provide detailed guidance and support.