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CQB9aL-40 Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)
1 Application
CQB9aL-40 residual current operated circuit breaker is applicable to the circuit with an alternating current of 50Hz or 60Hz, rated-voltage single pole and two lines 230V, and a rated current up to 40A; when the human body gets an electric shock or the network leak current 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.
Compliant standard: IEC 61009-1
2. Type designation
3 Technical data
| Specifications | |
|
Rated voltage(v) : |
AC230V |
|
Rated current(A) : |
6A，10A，16A，20A，25A，32A，40A |
|
Rated sensitivity lrn (mA) |
30，100，300 |
|
Poles : |
1P+N |
|
Rated breaking capacity : lcu(A) |
B、C：6kA(10A-40A) |
|
Max. tripping time |
0.1s |
|
Rated residual making and breaking capacity lr m |
2000 |
|
Tripping characteristics |
B、C |
|
Mechanical life & Electrical life: |
4000 cycles |
|
Nominal cross section area (mm2) :
|
2mm²：6A~16、2.5mm²：20~25、4mm²：32~40 |
|
Pollution degree: |
2 |
|
Protection degree: |
IP20 |
|
Overvoltage category : |
Ⅱ、Ⅲ |
4 Operating conditions.
4.1 : Ambient temp. range:-5℃~+40 ℃，average temperature in 24 hours not exceed +35℃
4.2 : Altitude:≤ 2000m;
4.3 : At mounting site, relative humidity not exceed 50% at the max temperature of +40 ℃，higher relative humidity is allowable under lower temperature, for example ,RH could be 90% at +20 ℃
4.4 : Mounting type : Din rail embedded(TH35-7.5)
4.5 Installation conditions
Any direction of the outer magnetic field of the installation site should not exceed 5 times than earth's magnetic field; residual current operated circuit breaker should be mounted vertically, the installation place should be no significant impact and vibration.
5. Overall and mounting dimensions (unit:mm)
