PRODUCTS CATEGORIES
CQB9aL-63 Residual Current Operated Circuit Breaker with Over-current Protection (Electronic)
1 Application
CQB9aL-63 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, three pole four lines 400V, and a rated current up to 63A; 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 | 1P+N | 3P+N | ||
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Rated voltage(v) : |
230V~ |
230~/ 400~ |
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Rated current(A) : |
6、10、16、20、25、32、40、50、63 |
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Rated sensitivity lrn (mA) |
10、30、100、300 |
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Rated residual non-operating current : lrno(mA) |
0.5lrn |
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Poles : |
1P+N |
3P+N |
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Rated breaking capacity : lcu(A) |
6000 |
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Rated residual making and breaking capacity lr m |
6000 |
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Maximum breaking time of the residual current operating |
Table 1 |
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Tripping characteristic : |
Table 2 |
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Mechanical life & Electrical life: |
Mechanical life：10000 ； Electrical life: 4000 |
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Nominal cross section area S (mm2) : |
Table 3 |
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Pollution degree: |
2 |
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Protection class: |
IP20 |
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Overvoltage category : |
Ⅱ、Ⅲ |
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Table 1 Max. breaking time of the residual current operating
| Type | ln (A) | lrn (mA) | Breaking time when the residual current assumes the following values (s) | ||
|
lrn |
2lrn |
5lrn |
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General type |
Any value |
Any value |
0.1 |
0.05 |
0.04 |
Table 3 Over current protection characteristics
| Rated current(A) | Test current | Initial status | Tripping time | Test result | Remarks |
|
6~63 |
1.13In |
Cold |
t≥1h |
Non-tripping |
|
|
6~63 |
1.45In |
Right after test a |
t＜1h |
Tripping |
Current smoothly rises to specified value in 5s |
|
6~63 |
2.55In |
Cold |
1s＜t＜60s(In≤32A)
1s＜t＜120s(In＞32A) |
Tripping |
C |
|
6~63 |
5In |
Cold |
t≥0.1s |
Non-tripping |
C |
|
10In |
t＜0.1s |
tripping |
Table 4 Nominal cross-sectional area
| Rated current （A） | Nominal cross-sectional area of the copper conductor （mm2） |
|
6~16 |
2 |
|
20~32 |
2.5 |
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40~63 |
4 |
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, all places inclination no more than 5 °,power position above the handle , the installation place should be no significant impact and vibration.
5. Overall and mounting dimensions (mm)
