JXF low-voltage distribution box

1. The frame of the JXF low-voltage switchgear is a combined structure, and the basic skeleton is assembled from C-shaped steel. All structural parts of the cabinet rack are galvanized, and are firmly connected to the basic cabinet rack by self-tapping locking screws or 8.8 grade hexagonal bolts, plus the doors, partitions, mounting brackets and busbar function units corresponding to the scheme changes to assemble a complete switch cabinet. The internal dimensions, parts and compartment dimensions of the switchgear are all modulated (E=25mm).

2. Each cabinet of JXF type combined low-voltage switchgear is divided into three rooms, namely the horizontal busbar room (at the back of the cabinet), the drawer chamber (at the front of the cabinet), and the cable room (at the lower part of the cabinet or on the right side of the front of the cabinet). The chambers are separated from each other by steel plates or high-strength flame-retardant plastic functional plates, and there are metal plates with ventilation holes between the upper and lower drawers to effectively prevent accidents caused by the flying arc of the switch element or short circuit between the bus and other lines.

3. The structural design of JXF low-voltage switchgear can meet the requirements of various inlet and outlet line schemes: up in and out, up in and out, down in and out, and down in and out.

4. Compact design: accommodates more functional units in a smaller space

5. The structural parts are highly versatile and flexible, with E=25mm as the modulus, and the structure and extraction unit can be arbitrarily combined to meet the needs of system design

6. The bus is protected by a high-strength flame-retardant and high-insulation strength plastic function board, which has anti-fault arc performance and makes the operation and maintenance safe and reliable

7. The mechanical interlocking mechanism of various sizes of drawers meets the standard regulations, and there are three obvious positions of connection, test and separation, which is safe and reliable.

8. Standard module design: it can be composed of standard units such as protection, operation, conversion, control, adjustment, measurement, and indication, and can be arbitrarily assembled according to requirements.

9. The use of high-strength flame-retardant engineering plastics effectively strengthens the protection and safety performance.

10. High degree of generalization, standardization, and easy assembly. With reliable quality assurance.

11. The cabinet can choose the different protection levels according to the different requirements of the working environment.

12. Equipment protection continuity and reliability

1. Scope of application

This product is suitable for use in circuits with AC frequency of 50HZ and rated operating voltage of 500V and below. Under special requirements, the protection level can reach IP5 with knock-out holes, and the multi-pipe inlet line can reserve live installation open-hole plates, with a maximum rated current of up to 400A, which is especially suitable for industrial and mining hotel users to measure and make boxes, and the product shell protection is IP53.

The product complies with: IEC60439.1 - 1993 "Low Voltage Switchgear Control Equipment" GB7251.1 - 2005 "Low Voltage Switchgear Control Equipment".

2. Model and meaning

 The structural diagram of the JX F □□□/□□ and the meaning of each part are explained, including "JX stands for wall-mounted control box; F for protective type; Hinge code: 1 - indicates dark hinge, 2 - indicates open hinge; H - cabinet height; W - cabinet width; D - box depth; Installation method: R concealed, M exposed, W outdoor"

JX F □□□/□□

└─Installation method: R concealed, M exposed, W outdoor

└─Cabinet Depth (D)

└─Cabinet Width (W)

└─Cabinet Height (H)

└─Hinge code: 1 - Indicates a hidden hinge

2 - indicates an open hinge

└─ indicates a protective type

└─Wall-mounted control box

3. Environmental conditions of use

1. Temperature: the ambient air temperature does not exceed + 40°C, and the lower limit of ambient air temperature is - 50°C.

2. Temperature: The relative humidity of the air does not exceed 50% at the maximum temperature of + 40°C, and higher relative humidity can be allowed at lower temperatures, such as up to 90% at +10°C.

3. Altitude: The altitude of the installation site does not exceed 2000m.

4. Installation category: Class II.

5. Pollution level: Level 3.

4. Structural characteristics

The structure is welded by thin steel plates, measuring instruments, button indicators and control switches, etc. It can be installed on the door. Other electrical equipment such as contactors, power breakers, terminal blocks, etc. should be installed

On the rack inside the box. There are knock-down holes on the upper and lower walls of the box shell, which is convenient for installing various specifications of electrical and cable pipelines

5. Main technical parameters

6. Shape and installation size

Schematic diagram of outline installation

7. Main technical parameters