The most frequently used outgoing switches (miniature circuit breakers) for single-phase meter boxes are 1P and 2P, while those for three-phase meter boxes are 3P or 4P,
The width of 1P to 4P is different. The larger the number, the wider the width, and the larger the space occupied. Therefore, when we communicate the customized plan to the customer, we will consult the other party's power consumption and what outgoing line switches to use, and reserve enough space. If the normal row of outgoing line switch rooms is not enough for installation, we will recommend the customer to build a double row outgoing line switch room. In addition, many customers use double row outlet switch room meter box in daily life.