MNS low voltage complete set switch devices
1.general introduction
MNS low voltage complete set switch devices is researched and developed according to the develop trend of Chinese low voltage switch cabinet by our company after improvement in electrical components and cabinet structure selection. It is a series of modular and multiple functional low voltage power distribution cabinet which can meet various requirements of users.MNS can provide high level safety and reliability. With its special construction, connection type and compatibility to various components it can meet the requirements of extreme time limit and power supply continuity.
This low-voltage switch gear is in accord with the fifthly part of IEC6043P VDE0660, GB7251-1991《Low-voltage switch gear and control gear》and JB/T9661《Low-voltage withdrawable switch gear》.
1.1 Application range
MNS is suitable for AC 50-60Hz power system with rated voltage under 660V especially power station, substation, petrochemical, metallurgy, mining and residence community, for power conversion and consumer control of the power distribution system with AC 50-60 Hz less than 660V rated voltage.
1.2 technical features:
MNS is a series of modular and multiple functional low voltage power distribution cabinet. It is suitable for all low voltage system, power distribution and motor control system which requires high safety and reliability. It is suitable for low voltage system less than 5000A.
2. Technical parameters
Main circuit rated voltage(V) |
|
AC380(400)、(660) |
|
Auxiliary circuit rated voltage(V) |
|
AC220、380(400) DC110、220 |
|
Rated frequency(HZ) |
|
50(60) |
|
Rated insulation voltage(V) |
|
660(1000) |
|
Rated current(A) |
Horizontal bus bar |
≤5000 |
|
Vertical bus bar(MCC) |
1000 |
||
Bus bar rated short-time withstand current(KA/1s) |
50、80、100 |
||
Bus bar rated peak withstand current(KA/0.1s) |
105、176、220 |
||
Power frequency test voltage (V/1min) |
Main circuit |
2500 |
|
Auxiliary circuit |
1760 |
||
Bus bar |
3 Phase 4 line |
A.B.C.PEN |
|
3 Phase 5 line |
A.B.C.PE.N |
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Protection grade |
IP30、IP40、IP54 |
Service conditions:
Ambient air temperature maximum 40℃, minimum -5℃. Average temperature in 24 hours maximum +35℃.
Air condition: air clean, relative humidity maximum 50% in temperature +40℃, in lower temperature more relative humidity is allowed, for example 90% in +20℃.
Considering temperature change, occasional condensation is possible.
Altitude maximum 2000m.
Pollution grade level 3.
Storage and transport: between -25℃ and 55℃. In short time (no more than 24 hours) +70℃.
Under these conditions device should not be unreconverably damaged. In normal conditions it should work properly.
If above-mentioned service conditions can not be met, user shall communicate with manufacturer.
3. Type explanation
Switch power distribution device
Indoor type
AC low voltage power distribution cabinet
4. Ordering instructions
■ All type of products (including main circuit schema number and auxiliary circuit schema number)
■ Main circuit system combination sequence diagram
■ Auxiliary circuit electrical schematic diagram
■ Cabinet components list
■ Voltage, current, time and other setting parameters in circuit
■ Coating color of cabinet
■ Other special requirements
5. Product certifications
CCC certification