XL-21 Low Voltage Distribution and Control Cabinet

Toonice's XL-21 Low Voltage Distribution and Control Cabinet is widely used in power plants and industrial and mining enterprises, serving as power or lighting distribution in three - phase three - wire, three - phase four - wire, three - phase five - wire and other power distribution systems below 500V of three - phase alternating current. It is installed against the wall indoors, with front - panel operation and front - panel maintenance. The cabinet body is of fully - enclosed structure, assembled from C - shaped material or 8MF - shaped material. Inside the cabinet, a new - type rotary load disconnect switch is adopted, which can operate with load. The front door is equipped with voltage and current indicating instruments, as well as master control elements such as signal lights, buttons, and transfer switches. This power distribution box adopts self - designed new - type components, with a compact structure, beautiful and generous appearance, convenient maintenance, and a variety of wiring schemes for users to choose from.

Features and Applications

1. Electrical performance fully complies with relevant regulations of GB 7251.1 and IEC 60439 - 1.

2. Feeder switches adopt new - type molded - case circuit breakers and compound releases with small volume, high breaking capacity, and short arcing (or no arcing), featuring overload and short - circuit protection functions, and can be equipped with leakage protection functions as per user requirements.

3. Motor circuits have overload, short - circuit, under - voltage, and phase - loss protection functions.

4. Auxiliary circuits possess local and remote control functions, as well as local - remote automatic switching capabilities.

XL - 21 power distribution cabinet is widely applied in industrial and civil buildings, and is suitable for power distribution and lighting distribution in three - phase four - wire power systems with an AC frequency of 50Hz and a voltage of 500V and below. It is commonly used for the power supply and control of various electrical equipment.

Structural Characteristics

The cabinet body is generally made of thin steel plates bent and welded, with a single left - opening door design on the front. The door is equipped with measuring instruments such as voltmeters and ammeters, as well as operating and signal electrical appliances. Inside the cabinet, electrical components like automatic switches, contactors, and fuses are installed, realizing functions such as power distribution, incoming voltage detection, real - time load current detection, and providing over - current, overload, and short - circuit protection for the load.

Usage Environment

1. Ambient temperature: -5℃~+40℃, and the average temperature within 24h does not exceed +35℃.

2. Altitude: not exceeding 2000m.

3. Relative humidity: not exceeding 50% when the ambient air temperature is +40℃; at lower temperatures, higher relative humidity is permissible (e.g., 90% at +20℃), with moderate condensation allowed due to temperature changes.

4. When installing, the equipment’s inclination from the vertical should not exceed 5°.

5. The equipment should be installed in a location free from severe vibration, impact, and corrosion.

Note: When ordering this product beyond the above - specified conditions, please negotiate with our company.

The XL-21 Low Voltage Distribution and Control Cabinet combines advanced features with versatile applications, making it an excellent choice for various power distribution and control needs.