The Chint Circuit Breaker is high quality!
NB7LE series residual current operated circuit breakers are suitable for AC rated voltage of 50Hz, unipolar,
two-wire, bipolar 230V V.
In three-pole, three-pole, four-wire and four-pole lines with rated current of 400V to 63A, when the person
gets an electric shock or the leakage current of the power grid exceeds
When the specified value is exceeded, the residual current operated circuit breaker can quickly cut off the
fault power supply in a very short time, protecting people and using it
The safety of electrical equipment can also be used for overload and short circuit protection of lines, and
it is not frequently switched on and off under normal circumstances
Device and lighting circuit, especially suitable for industrial and commercial lighting distribution system.
The ambient temperature ranges from-5℃ to+40℃, and the average temperature within 24h does not exceed +35℃.
Elevation: ≤2000m.
Installation conditions: the external magnetic field of the installation site should not exceed 5 times of
the geomagnetic field in any direction;
The residual current operated circuit breaker shall be installed vertically, and the handle shall be turned on upwards.
There should be no significant impact and vibration at the installation site.
Connection mode: use screws to press the connection.
It is applicable to the connection of copper wires of 16mm? and below (see Table 5). The connection method is
to use screws to compress the connection.
The torque is (1.5 ~ 2.0) N m.