The dehydration balance switch is an electronic component used in the washing machine, which is used to detect whether the clothes in the washing machine are balanced. When the clothes in the washing machine are unbalanced, the dehydration balance switch will automatically stop the dehydration process to prevent the washing machine from generating noise, vibration or damage due to imbalance. Dehydration balance switch usually consists of sensor and control circuit. The sensor can detect whether the clothes in the washing machine are balanced, and the control circuit can control the start and stop of the dehydration program according to the signal of the sensor.