Structural types and core uses of distribution cabinets

2025-05-01 11:37:26

1. Fixed panel switchgear

Structural features: Panel blocking opening design, with only basic protection on the front and access to live parts on the back (protection level IP20-IP30).

Core application: Suitable for substations in industrial and mining enterprises with low requirements for power continuity, used for centralized power supply control.

2. Protective (enclosed) switchgear

Structural features: Fully enclosed steel/insulated shell (excluding installation surface), metal/insulated partitions can be installed between circuits, doors and switches are mechanically interlocked.

Core application: Industrial site main Power distribution equipment (such as workshop power cabinets), with a protection level of IP54, dust-proof and splash proof.

3. Drawer style switchgear

Structural features: Modular enclosed design, functional units (Circuit breakers, instruments) integrated in pull-out drawers, busbar, cable, and unit are isolated in three zones.

Core application: High reliability scenarios such as high-rise buildings and precision manufacturing (such as data center power distribution), supporting rapid maintenance and component exchange.

4. Power/lighting distribution control box

Structural features: Vertical enclosed installation, flexible protection level (IP44~IP65), including circuit breakers, Fuses, and control components.

Core application: Distribution of Terminal equipment (such as production lines, building lighting), suitable for complex environments such as humidity and dust.

Selection suggestion:

Low budget scenario: Fixed panel type (low cost, easy maintenance).

High security requirements: drawer style (fast fault isolation, MTTR<30 minutes).

Harsh environment: protective/power box (IP65 dustproof and waterproof).