125A Residual Current Operated Circuit Breaker RCB MCB Performance
Heat Resistant
Application
The DZ47LE residual current operated circuit breaker is applicable
to the circuit with an alternating current of 50Hz, rated-voltage
single pole and two lines/two poles 230V, three poles/three poles
and four lines/four poles 400V, and a rated current 63~125A; when
the human body gets an electric shock or the networkleakcurrent
exceeds the specified value, the residual current operated circuit
breaker can rapidly cut off the power supply in trouble within a
very short time for the safety of the human body and the powered
equipment. With the function of overload and short circuit
protection, the residual current operated circuit breaker can be
used to protect the circuit or motor from being damaged by overload
and short circuit, and can also be used for not–frequent
operational transformation in the circuit under normal condition.The product meets the standards of GB14048.2 and IEC60947-2.
Model
Main Technical Data
Main specifications
Poles: 1P + N, 2P, 3P, 3P + N, 4P;
Short circuit tripping characteristics: (8 ~ 12) In.
Technical parameters
Rated voltage Ue (V): 1P+N, 2P: 230;
3P, 3P+N, 4P: 400;
Rated current In (A): 63,80,100,125.
Frame rated current Inm (A): 125;
Rated residual operating current I△n (A): 0.03,0.1,0.3;
Rated residual non-operating current I△no (A): 0.5I△n;
Rated short-circuit breaking capacity Icu (A): 6000;
Rated residual making and breaking capacity I△ m (A): 2000;
Residual current breaking time ( Table 1).
IΔn(mA) | The maximum breaking time(s) and not the minimum driving time (s) |
|
lΔn | 2IΔn | 5IΔn | 10IΔn |
≥30 | 0.1 | 0.06 | 0.04 | 0.04 |
For the over current protection characteristics ( Table 2).
Initial state | Test current | Time imit | Expected result | Remarks |
ln=63A | ln>63A |
Cold state | 1.05ln | t≤1h | t≤2h | No tripping |
|
Right after test number a | 1.30ln | t<1h | t<2h | Tripping | The current is rising within 5s |
Cold state | 8ln | t≤0.2s | No tripping | The power supply is tumed on by closing the auxiliary switch |
Cold state | 12ln | t<0.2s | Tripping |
Mechanical/Electrical Life
a. Electrical life: no less than 1,500 times
b. Mechanical life: no less than 8,500 times
Insulation shock-resistance voltage performance: Uimp(V):4000;
The residual current operated circuit breaker has the capability of
withstanding
the impact of the surge current with a peak current of 200A without
causing misoperation;
Characteristic curve( Fig.1)
External And Installation Size
Normal operating conditions
Ambient air temperature: -5°C~+40°C, the mean value is no greater
than +35°C within 24 hours .
Altitude: not higher than 2000m for the installation site.
Installation category: III grade.
Pollution degree: 3.
Installation: TH35-7.5 DIN rail
Installation conditions: external magnetic field in any direction
installation site should not exceed five times the Earth's magnetic
field; residual current operated circuit breakers should be
installed vertically, the handle for the power-up position;
installation should be no significant impact and vibration.
Circuit breakers perform 3 key functions: protection, switching,
and monitoring. Circuit breakers are designed to “break”
(discontinue) the flow of electricity to protect people and
equipment when current reaches an unsafe level due to overload,
short circuit, or other electrical faults. We are your one source
solution for all your circuit breaker and equipment needs.
Normally, we will provide the most suitable shipment method for
you. If the quantity is few, the goods will be sent by express when
the payment is clear. Also, we can transport the goods by air or by
sea, just according to your demand
Sichuan Baikong Electrical Technology Co.,Ltd has perfect testing
equipment and strict testing standards, perfect management and
operation and quality assurance system. The company adheres to the
enterprise purpose of synchronizing with the world and win-win with
customers, adhering to scientific management, loyal to design,
pioneering and innovation, and tree corporate image Business
philosophy, and fully understand customer needs, do the customers
think, with customers to create, win-win best control electrical
staff continuously forge ahead The spirit of pragmatic innovation,
serving the power construction at home and abroad to compose the
new chapter The control electrical products successively in the
national key projects and large enterprises are widely used, and to
get the customer the consistent approval .
Sichuan Baikong Electric Technology Co., Ltd sincerely look forward
to the presence and cooperation of old and new customers and
win-win new future together.
