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HMNS LV Withdrawable switchgear




1.General  Description:

 

HMNS Withdrawable Low-Voltage Switchgear Cubicle is assembled with modularized components as combination unit (hereinafter called the device). It is applied to AC 50-60Hz @ rated operating voltage of 660V or below for power receiving and distribution of low voltage distribution system and for power switching, distribution and control of power distribution and motor control center as well as capacitance compensation. The switchgear cabinet complies with GB7251.12-2013 and IEC439.

 

2.Working condition:

 

1.Ambient temperature;-5----+40

2.Altitude:≤2000m(indoor use)

3.Relative humidity≤95%(when temperature is +20),Maybe there will  be condensation influence because of temperature change,user must     consider it.

   4.Switchgear and vertical surface’s gradient is no more than 5%, and whole switchgear must be put parallel and level.

   5.Service environmentshould be avoided fire, explosion risk, serious     pollution, chemical corrosion and violent vibration.User should discuss with supplier while they have special requirements.

3.Main technical data

 

 

Rated voltage of main circuitV

AC380400)、(660

Voltage of auxiliary circuit V

AC220380400DC110220

Rated frequency(Hz)

5060

Rated insulating voltageV

40066a

Rated currentA

Horizontal   busbar

4000


Vertical busarMCC

1000

Short-time withstand currentkA/1S

5080

Peak withstand currentkA/0.1S

105176

Power frequency   testing voltageV/1min

Main circuit

2500


    Auxiliary circuit

1760

Busbar

Three-phase   four-wire system

ABCPEN


Three-phase five-wire system

ABCPENN

Level of protection

IP3OIP4O

 

4.Overall and assembly drawing







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