MNS Electrical Board Factory: Reliable and Efficient Solutions

MNS Electrical Board

Product Characteristics

Compact design: it can accommodate more functional units in a small space.

Adopt standard module design: it can form standard units such as protection, operation, conversion, control, adjustment, measurement and indication respectively. Users can choose and assemble them according to their needs. More than 200 kinds of assembly parts can form different cabinet frame structures and drawer units.

Safety: a large number of high-strength flame-retardant engineering plastic components are used to effectively strengthen the protective safety performance.

Wide range of application: it is applicable to the power supply system with AC 50-60Hz and rated working voltage of 660V and below. It is used for power generation, power supply and transmission, power distribution, electric energy conversion and control of electric energy consumption equipment.

Executive standard

IEC 60439-1 Low voltage switchgear and control-gear assemblies

Part 1:Type test and partial type test assemblies

GB 7251.1 Low voltage switchgear and controlgear assemblies

Part 1: type test and partial type test assemblies

JB/T 9661-1999 Low voltage withdrawable switchgear and other standards

Service Environment

● The ambient air temperature shall not exceed + 40 ℃, and the average temperature within 24h shall not exceed + 35 ℃.

● The lower limit of ambient air temperature is - 5 ℃.

● For indoor installation and use, the altitude of the place of use shall not exceed 2000m.

● The air shall be clean. When the maximum temperature is + 40 ℃, the relative humidity shall not exceed 50%; Higher relative humidity is allowed at lower temperatures. For example, the relative humidity is 90% at + 20 ℃, but considering the change of temperature, moderate condensation may occur occasionally.

● During installation, the inclination with the vertical plane shall not exceed 5 °.

● The device is suitable for the transportation and storage process of the following temperatures: - 25 ℃ - + 55 ℃, up to 70 ℃ in a short time (no more than 24h). Under these limit temperatures, the device shall not suffer any irreparable damage, and shall be able to work normally under normal conditions.

● The device shall be installed where there is no violent vibration and impact, and where the electrical components are not enough to be corroded.

● If the above service conditions cannot be met, the user shall negotiate with the company.

Specification

1. Basic Technical parameter

● Electrical performance

● Rated insulation voltage: 690V

● Rated working voltage: 380V, 660V

● Maximum working current of main bus: 5500a (IP00), 4700a (IP30)

● Short time (1s) withstand current of main bus 100kA (effective value)

● Short time peak current of main bus 250kA (maximum)

● The maximum working current of distribution bus (vertical bus) is 1000A

● Short time peak current of distribution bus (vertical bus)