小型配电柜对锁的安全性能要求不高，锁的操作也不用太复杂。主要防止供电设备外露，发生紧急事故开锁方便，可使用平面单点锁，手柄弹起即可打开柜门。
Small distribution cabinets do not require the safety performance of locks, and the operation of locks is not too complicated. Mainly to prevent the exposure of power supply equipment, emergency locking is convenient, can use the plane single point lock, the handle can pop up to open the cabinet door.
大型配电柜对锁的安全性能要求较高，可用两点、三点锁紧柜门外加挂锁，既达到了安全的目的，又有很好的操控性，发生紧急情况开锁也比较方便。
Large distribution cabinet requires high safety performance of locks. Two or three points can be used to lock cabinet doors with padlocks, which not only achieves the purpose of safety, but also has good maneuverability. It is also convenient to unlock in emergencies.
户外型配电柜对锁的安全性能要求更高，而且有防水、防尘的要求，除了用两点、三点锁紧柜门外，还要使用多重胶圈结构防水，以及使用磁性结构的防护盖达到防尘的目的。
Outdoor distribution cabinets require higher safety performance of locks, and have the requirements of waterproof and dust-proof. In addition to locking cabinet doors with two or three points, they also need to use multi-apron structure for water-proof and magnetic structure for dust-proof purposes.