Low-voltage switchgear

Structural characteristics of low-voltage switchgear

structural composition

The low-voltage switchgear mainly consists of the following parts:

Shell: Made of metal or non-metal materials, providing necessary protection.

Busbar: responsible for connecting various functional units to ensure smooth transmission of current.

Circuit breaker: responsible for opening and closing circuits to ensure equipment safety.

Transformer: used to measure key parameters such as current and voltage.

Control components: such as relays and contactors, to achieve automated control functions.

Protective components such as fuses and lightning arresters ensure the safety of the circuit and equipment.

Example of incoming cabinet

Rated voltage: 400V AC

Rated current: 1250A

Circuit breaker type: molded case or frame circuit breaker

Circuit breaker model: such as ABB Tmax XT series molded case circuit breaker

Rated current and breaking capacity of circuit breaker: 1250A/65kA

Protection function: overload and short circuit protection

Installation method and size: fixed type, width x depth x height ≈ 800mm x 600mm x 2200mm

Example of feeder cabinet

Circuit breaker type: molded case circuit breaker

Circuit breaker model: such as Schneider Electric NSX series molded case circuit breaker

Rated current and breaking capacity of circuit breaker: 400A/36kA

Protection function: overload and short circuit protection

Installation method and size: fixed type, width x depth x height ≈ 600mm x 600mm x 2200mm