Original
By certification 
Circuit breakers can be used to distribute power, not frequently start the asynchronous motor, protect the power lines and motors, automatically cut off the circuit when they have a serious overload or short circuit and undervoltage failure. it is a combination of the fuse switch And overheat relays . And generally do not need to change the parts after breaking the fault current. At present, Circuit breakers has been widely used.
Type |
AN-T125 |
AN-T160 |
AN-T250 |
AN-T400 |
AN-T630 |
AN-T800 |
|
Poles Number |
3,4 |
3,4 |
3,4 |
3,4 |
3,4 |
3,4 |
|
Rated Current In(A) |
16-100 |
80-160 |
100-250 |
200-400 |
400,500,630 |
500,630,700,800 |
|
Rated working Voltage Ue(V)(50/60Hz) |
690 |
690 |
690 |
800 |
800 |
800 |
|
Rated Operating Voltage Ue(V) |
380 |
380 |
380 |
660 |
660 |
660 |
|
Rated insulation Voltage Ui(V) |
660 |
660 |
660 |
660 |
660 |
660 |
|
Utilisation category |
A |
A |
A |
A |
A |
A |
|
|
Ultimate short-circuit breaking capacity (KA) |
AC380V(400) |
35 |
35 |
35 |
35 |
50 |
50 |
AC660V(690) |
8 |
8 |
10 |
16 |
20 |
20 |
|
DC250 |
20 |
20 |
40 |
18 |
30 |
30 |
|
Short circuit breaking(KA) |
AC380(400) |
18 |
18 |
18 |
18 |
30 |
30 |
