GCS, GCK, MNS, GGD: Understanding the Differences in One Article

The disadvantages are few circuits, inability to freely combine units, large footprint, inability to connect with computers, and weak intelligence. GGD is suitable for scenarios with low expansion demand and limited budget (such as small factories). However, if frequent maintenance or intelligent management is required, it is recommended to directly choose drawer-type cabinets.

Drawer-type cabinets are different from fixed cabinets. GCK, GCS, and MNS are all drawer-type cabinets. When it comes to drawer-type cabinets, you must first understand a concept, which is the modulus E. The modulus E has two values: one is 20mm, and the other is 25mm. Currently, drawer-type cabinet bodies are generally processed with two types of profiles: one is the KS profile, which has E=20mm; the other is the C-profile, with E=25mm. Because the general cabinet height is 2200mm, the effective height for placing drawers (i.e., the height of the drawers) is 1800mm. Therefore, both types of GCK can hold 9 layers of drawers, because 8E (when E=20) = 160, and 8E (when E=25) = 200, both less than the effective height of 1800.

Their differences are mainly in the following aspects:

1.Both GCK and MNS cabinet frame structures use C-profiles, with a standard modulus E=25mm; GCS cabinet frame structure uses KS profiles, with a standard modulus E=20mm;

2.The drawer operating mechanisms of GCK cabinets and GCS and MNS cabinets are different. GCK cabinet drawer circuit operating mechanisms have three types: XJG8(H1) hand-crank operating mechanism, XSL pull-type operating mechanism, and XJG8(H2) hand-crank operating mechanism specially for electric operation. The operating mechanism of GCK is relatively simple, GCS uses a rotary operating mechanism, while MNS uses an interlocking mechanism.

3.GCS cabinets can only be single-sided operating cabinets, with external dimensions (height x width x depth) 2200mm x 400/600/800/1000/1200mm x 800/1000mm. The original design maximum current of GCS could only reach 4000A, but now it can reach up to 6300A; GCK cabinet external dimensions: width: 400/600/800/1000/1200mm depth: 800/1000mm height: 2200/2300mm, rated current can be up to 6300A; MNS cabinets can be double-sided operating cabinets, with external dimensions (height x width x depth) 2200mm x 400/600/800/1000/1200mm x 600/800/1000mm, rated current can be greater than 6300A.

4.The GCK cabinet is significantly different from GCS and MNS in that its main busbar is placed on the top of the cabinet, without a flame-retardant plastic function board, and cannot connect with computers. The busbars of GCS and MNS are rear-mounted, with flame-retardant plastic function boards.

5.From GCK to GCS to MNS, the minimum drawer unit becomes smaller and smaller, and the maximum number of circuits per cabinet increases.

Here is a little advice when selecting models: GGD: suitable for scenarios with limited budget, few circuits, ample space, and low requirements for intelligence; GCK: suitable for places with cost sensitivity, moderate number of circuits, and not high demand for intelligence; GCS: suitable for places with high requirements for reliability and flexibility, and may require computer interface; MNS: suitable for high-end projects with extremely high requirements for space utilization, circuit density, and modularity.