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CQB9R-125 Miniature Circuit Breaker Reclosing
1 Application
CQB9R-125 Auto reclosing circuit breaker is a small circuit breaker with real-odd short-circuit overload protection as its main switch. Super-miniature Intelligent Electronics equipped with microprocessor, through the detection of the electric control signal, the automatic control of circuit breaker can be explained or cooperated, and the automatic control of arrears analysis and payment can be realized by matching with pre-paid meter.
2 Type designation
3 Technical data
| Specifications | |
|
Insulation voltage |
500V |
|
Rated impulse withstand voltage Uimp |
6000V |
|
Rated current(A) |
40A、50A、63A、80A、100A、125A |
|
Rated frequency |
50Hz / 60Hz |
|
Number of poles |
1P+N、2P、3P、3P+N、4P |
|
Rated breaking capacity lcn(A) |
6000A |
|
Short-circuit capacity Ics(A) |
6000A |
|
Mechanical life(cycles) |
20000 |
|
Electrical life(cycles) |
6000 |
|
Operating range |
(60 ％一 120 %) Un |
|
Control signal voltage |
AC220V 50Hz |
|
Power Delay Time |
t ≥4s(State Grid) 7≤t ≤ 8(Southern grid) |
|
Automatic closing time |
t ≤ 3s |
|
Tripping characteristics |
B、C 、D |
|
Cross Section Area of Signal Connecting Wire |
0 . 3mm² |
|
Signal Connection Wire Length |
300mm (Customizable on demand） |
|
Grid distance |
45mm |
|
Standard |
IEC60898-1、GB/T10963 . 1 |
|
Compliant certification |
CCC |
4 Nominal operation conditions
1 Ambient operating temp. range：-5℃~40℃；≤90%/20℃；≤50%/40℃
2 Operating altitude： ≤2000m
3 Pollution degree： 3
4 Overvoltage category： "Ⅱ"、"Ⅲ"
5 Mounting type：Din rail embedded(TH35-7.5).
5 Dimensions（unit :mm）
