DZ15LE- 40/4901 40A 4P 30Ma Rccbresidual Current Circuit Breaker
DZ15 series MCCB (hereinafter referred to as the circuit breaker),
suitable for AC 50Hz, rated voltage of 220V or 380V, circuit of
rated current to 100A, as overload and short circuit protection,
motor power distribution, can be used as a line without frequent
conversion and the motor is not frequent starting with. The
transparent housing type circuit breaker of this series is made of
new type, high temperature resistant and high strength
polycarbonate material. It can intuitively judge the contact state
of contacts, and is widely used in temporary electric fields such
as construction sites.
Conform to the standard: GB14048.2.
|Current shell frame||40||100|
|Use category||A type||A type|
Normal working conditions and installation conditions
Ambient temperature: the upper limit of not more than + 40 , lower
limit of not less than -5 , and 24h average temperature does not
exceed + 35 ;
Note 1: The lower limit of -10 or -25 working conditions in
factories are required to declare the user when ordering;
Note 2: The upper limit or lower than + 40 lower than -25 working
conditions, users consultation with the manufacturer.
Any direction of the external magnetic field installation site
should not exceed 5 times the earth's magnetic field;
installation location should be perpendicular to the direction of
the inclination of each is not higher than 5 .
Structure and working principle
The series leakage circuit breaker electronic leakage circuit
breakers, mainly by the zero-sequence current transformer, leakage
release, electronic amplification components, test equipment and
circuit breaker with overload and short circuit protection
components. All components are mounted in a plastic housing.
When the protection circuit leakage or physical shock, as long as
the leakage current reaches the operating current, the output
signal of the zero-sequence current transformer secondary winding
can make SCR trigger conduction, and through the current release
enables circuit breaker action to cut off the power play leakage
and shock protection.
When the protection circuit overload or short circuit, the
hydraulic release completion delay or instantaneous tripping, so
leakage circuit breakers, thereby cutting off the power play or
short circuit overload protection.