The HNXL-21 low-voltage power distribution box is suitable for AC 50Hz, rated working voltage 380V distribution systems of power plants, substations, factories, mining enterprises and other power users. It is used for the conversion, distribution and control of power, lighting and distribution equipment.
The HNXL-21 low-voltage power distribution box is a new type of low-voltage distribution cabinet designed according to the requirements of power users and design departments, based on the principles of safety, economy, rationality, and reliability. The product has the characteristics of high breaking capacity, good dynamic and thermal stability, flexible electrical scheme, convenient combination, strong series and practicality, novel structure, and high protection level.
The HNXL-21 low-voltage power distribution box complies with standards such as IEC439 for low-voltage switchgear and control equipment, GB7251.1 for low-voltage switchgear and control equipment.
Main technical parameters
Rated insulation voltage: 660V
Rated operating frequency: 50Hz
Rated working voltage: 380V
Working current range: 630A-200A
Rated peak withstand current: 30KA.
Rated short-time withstand current: 15KA
Electrical clearance: ≥ 10mm
Creepage distance: ≥ 12.5mm
Protection level: IP30
Electric shock protection category: Class I
Product Features
The HNXL-21 power cabinet is an indoor device made of bent and welded steel plates. The product is a single leaf left-hand door, and the knife switch operator is installed on the upper part of the right pile in front of the box. The door is equipped with measuring instruments, operating and signal appliances. After the door is opened, all electrical appliances are exposed for easy maintenance and repair. The incoming and outgoing lines use cables. When users have special requirements, they can enter the wire tapping hole or install a busbar chamber on the top book board of the box.
The external dimensions of the components are: length 600, 700, 800mm, height 1600, 1800mm, width 350, 400mm.
