Low-voltage cabinet capable of being combined for use

The utility model relates to the technical field of low-voltage cabinets, and provides a low-voltage cabinet capable of being combined for use, which comprises a cabinet body, supporting trundles respectively arranged at four corners of the bottom of the cabinet body, paired connecting mother boxes respectively arranged at the upper and lower parts of the right side of the cabinet body, and paired connecting sub-blocks respectively arranged at the upper and lower parts of the left side of the cabinet body. And the connecting sub-blocks can be inserted into the connecting mother box and are locked with each other through automatic lock catches. According to the utility model, through the rolling of the supporting trundles, the connecting sub-blocks of the adjacent cabinet bodies can be inserted into the connecting mother boxes and are mutually locked through the automatic lock catches, so that the combined use can be realized without auxiliary equipment, the structure is simple, and the operation is convenient