Low voltage distribution cabinet

Distribution box

The distribution cabinet is a key equipment in the power system, and its components usually include the following main parts:

1. Cabinet
   Function: Provide structural support and external protection to prevent dust, moisture, and foreign matter from entering.

Material: Usually cold-rolled steel plate or stainless steel is used, which has anti-corrosion and anti-rust functions.

Protection level: such as IP54 (dustproof and waterproof), IP65 (completely dustproof and waterproof), etc.

2. Circuit breaker
   Function: Used for circuit switching operation and overload and short-circuit protection.

Type:

Air circuit breaker (ACB): used for high current circuits.

Molded case circuit breaker (MCCB): used for medium current circuits.

Miniature circuit breaker (MCB): used for low current circuits.

3. Fuse
   Function: Fuse when the circuit is overloaded or short-circuited to protect the circuit and equipment.

Type: high-voltage fuse, low-voltage fuse, etc.

4. Contactor
   Function: used to control the connection and disconnection of the circuit, usually used in conjunction with a relay.

Application: commonly used in motor control, lighting control, etc.

5. Relay
   Function: used for automatic control and protection of circuits, such as overvoltage, undervoltage, and overcurrent protection.

Type: time relay, thermal relay, voltage relay, etc.

6. Instrument
   Function: real-time monitoring and display of power parameters, such as voltage, current, power, power factor, etc.

Type: voltmeter, ammeter, power meter, energy meter, etc.

7. Busbar
   Function: a conductive part that connects the power supply and load, used to distribute electrical energy.

Material: usually copper or aluminum, with good conductivity and corrosion resistance.

8. Terminal block
   Function: used to connect cables and equipment to ensure that the circuit connection is firm and reliable.

Type: ordinary terminal block, grounding terminal, fuse terminal, etc.

9. Capacitor
   Function: used for power factor correction to improve the efficiency of the power system.

Application: Commonly used in industrial power distribution systems.

10. Indicator lights and buttons
    Function:

Indicator lights: Display the operating status of the equipment (such as power on, fault alarm, etc.).

Buttons: Used to manually control the start, stop and operation of the equipment.

11. Grounding device
    Function: Ensure the safe grounding of the equipment to prevent electric shock accidents.

Composition: Grounding wire, grounding bar, etc.

12. Heat dissipation device
    Function: Prevent equipment from overheating and ensure stable operation of the distribution cabinet.

Type: Fan, heat sink, vent, etc.

13. Intelligent monitoring module (optional)
    Function: Integrate intelligent management system to achieve remote monitoring, data collection and fault diagnosis.

Application: Applicable to intelligent distribution cabinets to improve the management efficiency of power systems.

Summary
The components of the distribution cabinet work together to ensure the safe, stable and efficient operation of the power system. Understanding the functions and characteristics of these components will help to better select, use and maintain the distribution cabinet. If you have more questions or needs about the distribution cabinet, please feel free to consult!