1. Application
CQB5H-125 series miniature circuit breakers are suitable for AC 50/60Hz, rated voltage 230V/400V, rated current to 125A lines, with isolation, overload and short-circuit protection functions, can also be used as the line is not frequent on-off operation and conversion.
Applicable to industrial, commercial, high-rise and civil residential and other places.
2. Type designation
3. Technical data
Model |
Versions |
Rated voltage(V) |
230V(1P)、400V(2~4P) |
Nominalcurrent (A) |
63A、80A、100A |
Rated frequency |
1P、2P、3P、4P |
Number of poles |
Icu=Ics=6000A |
Rated breaking capacity lcu(A) |
8000V |
Short-circuit breaking capacity Ics(A) |
Mark 2 |
Mechanical life(cycles) |
8500&1500(Operating frequency:120 /h) |
Electrical life(cycles) |
Mark 3 |
Tripping characteristics |
2 |
Protection Class IP |
IP20 |
Standard |
Ⅱ&Ⅲ |
Compliant certification |
4. Working and the installing condition
4.1 Ambient operating temp. range:-5℃~40℃;≤90%/20℃;≤50%/40℃
4.2 Operating altitude: ≤2000m
4.3 Pollution degree: 2
4.4 Overvoltage category: "Ⅱ"、"Ⅲ"
4.5 Mounting type:Din rail embedded(TH35-7.5).
4.6 Terminal connection type:Cable
4.7 Terminal Torque: 2.5N.m
5. Overall and Mounting dimensions (mm)
6. Catalogue