1. Summary
MNS Switch equipment is a Low-voltage assemble switch equipment installs by standard module for the factory. It applied to AC 50 ~ 60 HZ, rated voltage 660 V and below the power supply system, used for power generation, transmission and distribution the power conversion and controlled power consumption equipment.
2. Standard
● national standard GB7251-97 "Low-voltage assemble switch equipment."
● national professional standards ZBK36001-89 "out of low-voltage assemble switch equipment."
● international standards IEC439.
● German standards VDE660 Part 5.
3. Devices environmental conditions
● temperature: ambient air temperature no higher than +40 ℃, not less than -5 ℃, and the average temperature in 24H no higher than +35 ℃.
● atmospheric conditions: clean air, relative humidity at the highest temperature of +40 ℃ no more than 50%, at a lower temperature to allow a higher relative humidity, for example, +20 ℃ at 90 percent, but in view of temperature changes, may have a chance to moderate dew.
● high altitude: not more than 2000 m.
● transport and storage: the device adapted to the temperature of the transport and storage of the process: between the scope from -25 ℃ to +55 ℃, in a short period of time (no more than 24 h) up to +70 ℃, in these extreme temperatures devices should not be subjected to any resumption of the injury, but also should be able to work properly in normal conditions.
● If the above conditions can not be met, users and factories should be resolved through consultation.
● When the device used in offshore oil drilling platforms and nuclear power stations, should be signed technology agreement.
4. Features
● compact design: a smaller space can accommodate more functional unit.
● structure of high universality, flexible assembly: 25 mm module for the C-type profiles to meet a variety of forms,protection levels and the use of environment protection needs.
● use of standard modular design: each component can be protected, operation, conversion, control, regulation, determination, direction and other standard modules, users can choose any assembly required. More than 200 kinds of assemblies can be composed of different options Guijia structure and the drawer unit.
● security: a large number of high-strength fire retardant engineering plastics components, to strengthen effective security performance.
● high-performance technology: the main parameters to the contemporary international technical levels.
● compression venues: three high-level can be greatly compressed storage and transport of prefabricated parts of the venue.
● assembly convenience: no special complex tools.
5. Main technical parameters
5.1 electrical performance:
● insulation rated voltage 660 V.
● rated voltage 380 V, 660V.
● the largest current of main bus 5500A (IP00).
4700A (IP30).
● main bus short-term (1 S) tolerance current 100 KA (RMS).
● main bus short-term peak current 250 KA (Max).
● distribution bus (vertical bus) Maximum working current 1000 A, 1300A.
● distribution bus (vertical bus) Short-term peak:
Standard 90KA (Max).
Enhanced 130KA (Max).
5.2 security level:
● with IEC529, DIN40050 standard.
● IP30 for more than φ2.5 mm solid defense.
● IP40 for more than φ1.0 mm solid defense.
● IP54 for dust and splash protection for any direction(order IP54 security level should be in consultation with the factory).
