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CQB3LE-63 series Electronic Leakage Miniature Circuit Breaker
Overview and applications
1.Wide-domain adaptation capability
2.Multi-scenario compatibility
3.Leakage, overload/short circuit protection
4.Protect people against indirect contacts and additional protection against direct contacts.
5.Protect installations against fire hazard due to insulation faults.
6.Control electric circuits
Suitable for industrial, commercial, high-rise and civil residences circuit protection.
Technical data
| Specifications | |
| Rated voltage(V) | 230V~ (2P、1P+N) /400V~ (3P、4P、3P+N) |
| Rated current(A) | 6、10、16、20、25、32、40、50、63 |
| Poles | 2P、3P、4P、1P+N、3P+N |
| Rated breaking capacity Icn=lcs(A) | 6000A |
| Rated sensitivity(mA) | 30、50、100、300 |
| Rated non-operating current(mA) | 0.5l△n |
| Rated residual making and breaking capacity | 2000A |
| Tripping time | ≤0.1s |
| Mechanical & Electrical life | 4000 |
| Tripping curves | B、C、D |
| Protection degree | 2 |
| Protection class | Ip20 |
| Overvoltage category | III |
| Standards | IEC61009-1, GB/T16917.1 |
| Compliant certification | CCC |
Table1 Tripping characteristics (Reference temp)
| Item | Ratedcurrent(A) | Initial Status | Test current In(A) | Time limit for tripping or non-tripping | Expected result | Remarks |
| Delay | ≤63 | Cold | 1.13ln | ≤1h | Non-tripping | |
| Delay | ≤63 | Following previous test | 1.45In | <1h | Tripping | Current smoothly rises to specified value in 5s |
| Delay | ≤32 | Cold | 2.55In | 1<t<60s | Tripping | |
| Delay | ﹥32 | Cold | 2.55In | 1<t<120s | Tripping | |
| Instantaneous | Any value | Cold | 3、5、10In | ≤0.1s | Non-tripping | B、C、D |
| Instantaneous | Any value | Cold | 5、10、20In | <0.1s | Tripping | B、C、D |
Note: The term "cold" means that the test is carried out at a reference calibration temperature without load before the test.
Tripping curves
Conductor requirements and cross section
| Copper cross-section(mm²) | Rated current In(A) |
| 1 | In≤6 |
| 1.5 | 6<In≤13 |
| 2.5 | 13<In≤20 |
| 4 | 20<In≤25 |
| 6 | 25<In≤32 |
| 10 | 32<In≤50 |
| 16 | 50<In≤63 |
Dimensions(unit:mm)
| Poles | L |
| 1P+N | 53.4 |
| 2P | 71.2 |
| 3P | 102.4 |
| 3P+N | 115.8 |
| 4P | 133.6 |
Order Specifications
1.When ordering circuit breakers, the following points should be specified:
A) Product models, such as CQB3LE-63;
B) Poles of circuit breakers, such as 1P+N、2P、3P、3P+N、4P;
C) Types of instantaneous tripping, such astype B/C/D;
D) Rated current of circuit breakers, such as 16A、20A、25A;
E) Order quantity, such as 100pcs
2.Purchase order template
CQB3LE-63 2P C/16A 100pcs
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