The Chint Circuit Breaker is high quality!
The rated running short circuit breaking capacity Ics kA 380V 12.5
The arcing distance is mm 200
The rated current (in a) is 120,150,170,200,250
NM10 series plastic shell circuit breakers (hereinafter referred to as circuit breakers) are mainly suitable for
infrequently operated AC
50Hz, rated working voltage to 380V, rated current to 600A distribution network circuit, used to distribute
electrical energy
And protect lines and power equipment from overload, short circuit, undervoltage and other faults. Circuit
breakers of 250A and below are the same
It can also be used as infrequent starting and overload, short circuit and undervoltage protection of motor.
The cover of transparent shell circuit breaker derived from this series is made of new, high temperature
resistant and high strength polycarbonate material
It can directly judge the on-off state of contacts, and is widely used in temporary power consumption
places on construction sites.
NM10-100H has no transparent cover, NM10-250 and NM10-600 have no H-shaped products.
Normal working conditions and installation conditions
Ambient air temperature:
The upper limit of ambient air temperature is+40℃;
The average value of ambient air temperature for 24h shall not exceed+35℃;
The lower limit of ambient air temperature is -5℃.
Elevation: the elevation of the installation site shall not exceed 2000m.
Pollution grade: Grade 3.
The inclination to the vertical plane shall not exceed 5. °
Environmental conditions for installation:
There is no significant shaking and impact vibration;
In a medium without explosion danger, and there is no gas and dust (including conductive dust) enough to
corrode metal and damage insulation in the medium;
Where there is no rain or snow.
Atmospheric conditions:
The atmospheric relative humidity shall not exceed 50% when the ambient air temperature is +40℃; It can have
higher relative humidity at lower temperature; The monthly average maximum relative humidity in the wettest
month is 90%, and the monthly average minimum temperature is +25℃, taking into account the condensation on
the product surface due to temperature change.
Over-current release is disconnected under overload condition (inverse time limit action)
Over-current release is disconnected in case of short circuit.