Classification and Professional Selection Guide of Residual Current Device RCD

 Residual current device RCD can be divided into multiple types according to working principle, protection type and sensitivity, and scientific classification selection is the key to accurate protection. According to current detection type, RCD is divided into AC type, A type and B type. AC type is suitable for pure AC leakage circuits, A type adapts to pulsating DC leakage, and B type is used for high-precision industrial full-current detection scenarios.

According to sensitivity, RCD is divided into high-sensitivity 30mA models for personal protection and medium-sensitivity 100mA and above models for fire prevention and equipment protection. Users need to select matching types according to load characteristics and protection purposes to avoid model mismatch leading to protection failure.

SWGCT residual current device RCD provides full-type classification options for professional engineering matching.

In household and public places, high-sensitivity A-type RCD is recommended to adapt to modern electronic equipment power consumption characteristics. In industrial production lines, B-type high-precision RCD is preferred. It is forbidden to use low-specification RCD instead of high-specification products, which will leave serious safety hazards. Professional classification selection ensures that RCD exerts optimal protection performance. SWGCT professional residual current device RCD meets differentiated protection demands of various industries.