Main switchgear types: Low-voltage switchgear includes GGD, GCK, GCS, MNS, XLL2 low-voltage distribution boxes and XGM low-voltage lighting boxes. Main difference: GGD is a fixed type, and GCK, GCS, MNS are chests of drawers. GCK and GCS, MNS cabinet drawer push mechanism is different; The main difference between GCS and MNS cabinets is that the GCS cabinet can only be used as a single-sided operation cabinet with a depth of 800mm, while the MNS cabinet can be used as a double-sided operation cabinet with a depth of 1000mm. Advantages and disadvantages: Withdrawable cabinets (GCK, GCS, MNS) save space, are easy to maintain, have many outgoing lines, but are expensive; Compared with the fixed cabinet (GGD), it has fewer outlet circuits and occupies a larger area (if the space is too small to make a fixed cabinet, it is recommended to use a drawer cabinet).