25KA MCB 240V Circuit Breaker 1 Pole with High Breaking Capacity
A circuit breaker is an automatically operated electrical switch
designed to protect an electrical circuit from damage caused by
overload or short circuit. Its basic function is to detect a fault
condition and interrupt current flow. Unlike afuse, which operates
once and then must be replaced, a circuit breaker can be reset
(either manually or automatically) to resume normal operation.
Circuit breakers are made in varying sizes, from small devices that
protect an individual household appliance up to large switchgear
designed to protect high voltage circuits feeding an entire city.
1. completely independent intellectual property right,national
utility model patent.
2. The overall is nice with sleek and smooth line.
3. It is easy to distinguish with different colors of different
4. It is comfortable to operate with embowed handles.
5. It is flexible to install and dismantle with creative design
6. Setting oblate direction ,more beauty and more standard.
7. To meet customers needs with more connection styles.
8. Enhancing the ability of reflex arc when short circuit breaking
with many improvements.
9. Enhancing the ability of extinction arc when short- circuit
breaking with many improvements.
10. Short-circuit breaking capacity (ICS) of products get to 6KA
combining many improvement.
|Number of Poles|
1P, 2P, 3P, 4P
|Rated Current (A)|
20, 25, 32, 40, 50, 63, 80, 100, 125
|Breaking Capacity (A)|
|Rated Voltage (V)|
no less than 6000 operations
(O-C) no less than 20000 operations
The over-current tripping unit protection feature
International Standard--- IEC 60898-1 and European Standard EN
60898-1 define the rated current In of a circuit breaker for low
voltage distribution applications as the maximum current that the
breaker is designed to carry continuously (at an ambient air
temperature of 30 °C). The commonly-available preferred values for
the rated current are 20 A, 25 A, 32 A, 40 A, 50 A, 63 A, 80 A, 100
A, and 125 A (Renard series, slightly modified to include current
limit of British BS 1363 sockets). The circuit breaker is labeled
with the rated current in amperes, but without the unit symbol "A".
Instead, the ampere figure is preceded by a letter "B", "C" or "D",
which indicates the instantaneous tripping current — that is, the
minimum value of current that causes the circuit breaker to trip
without intentional time delay (i.e., in less than 100 ms),
expressed in terms of In:
Start right after
the serial NO .