• XL-21(G)型低压封闭式动力柜.jpg

XL-21(G) low-voltage enclosed power cabinet

Category: Comprehensive Distribution

Description: It mainly produces all kinds of high, medium and low voltage switchgear. Since its establishment, it has developed rapidly with the support of the majority of users. At present, it has a number of advanced machinery and equipment production lines and a scientific research and management team composed of middle and senior talents with rich experience and strong technical force. Technological level and product quality, to better serve our customers.

Keywords: high-voltage switchgear, medium-voltage switchgear, low-voltage switchgear, box-type substation, integrated distribution station

Product Details


XL-21(G)X low-voltage enclosed power cabinet is suitable for three-phase three-wire and three-phase five-wire systems with AC voltage of 500V and below in power generation and industrial and mining enterprises. It is used for power lighting and power distribution.

XL-21(G) low-voltage dedicated cabinet has the characteristics of flexible power distribution scheme, convenient combination, strong practicability and novel structure.

Model and its meaning


XL-21(G) low-voltage enclosed power cabinet


Structural Features

1. The main electrical properties fully comply with the requirements of orbital C60439—1 and GB7251.1.

2. The auxiliary circuit has the functions of local, remote, automatic control and local and remote control switching functions, and the contactor can be protected by DC.

3. The power receiving main switch has the option of instant drag buckle and thermal magnetic drag buckle protection. In order to cooperate with the next-level main switch, the instant protection is cancelled and super tripping is avoided, and there are automatic switching, manual operation and automatic switching. Function.

4. The main switch of the feeder circuit has instantaneous tripping and thermal-magnetic tripping protection, and leakage protection can be added when the user requests.

5. The motor control circuit has short-circuit instantaneous, overload, under-voltage release and phase failure protection.

6. The power receiving circuit is equipped with ammeter and voltmeter.

7. XL-21(G) low-voltage enclosed power cabinet is assembled with C profile or 8MF profile. The frame and special supporting parts are produced and supplied by our company to ensure the accuracy and quality of the cabinet. The other parts of the cabinet are designed according to the principle of scale, the generalization coefficient is high, and the production can be realized.

8. The cabinet door and the frame are connected by detachable living hinges, which are easy to install and disassemble.

9. The grounding of the instrument door where electrical components are installed is connected to the frame with multi-strand soft copper wires. The mounting parts in the cabinet are connected with the frame with knurled washers, and the whole cabinet constitutes a complete grounding protection system.

Use ambient conditions

1. The altitude should not exceed 2000m.

2. Indoors without dust, corrosive gas and rain

3. The upper limit of ambient air temperature is +40℃, and the lower limit is -25℃. The average temperature measured within 24 hours does not exceed +35 °C, and the temperature under storage and transportation conditions is between -25 °C and 55 °C, and does not exceed 70 °C for a short time.

4. Relative temperature: the relative air temperature +40℃ does not exceed 50%.

5. There is no vibration and turbulence, and the installation inclination does not exceed 5°C.

6. The user has special requirements, which can be solved through negotiation with the manufacturer.

Technical parameters


XL-21(G) low-voltage enclosed power cabinet


Main circuit scheme


XL-21(G) type low-voltage enclosed power cabinet



XL-21(G) low-voltage enclosed power cabinet



XL-21(G) low-voltage enclosed power cabinet


Outline and installation dimensions


XL-21(G) low-voltage enclosed power cabinet



XL-21(G) low-voltage enclosed power cabinet


Ordering Instructions

When ordering, please specify:

1. The model of the product;

2. The main circuit system diagram, the plane arrangement diagram of the cabinet;

3. Electrical schematic diagram of auxiliary circuit;

4. List of components in the cabinet (main busbar specifications);

5. The color of the cabinet (if there is no requirement, it will be supplied in light camel gray (Chint B), and the size of the cabinet;

6. Other special requirements that are inconsistent with the normal use conditions of the product.