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1. Advanced and reasonable structure, reliable performance, high breaking capacity, beautiful and compact appearance, etc;
2. The shell and other components are made of impact-resistant and high-resistance materials;
3. Mainly used in various places such as industrial, commercial, high-rise office buildings, and residential buildings.
4. For overload and short-circuit protection of lighting, distribution lines, and equipment.
CTB1/CTB1L Series Miniature Circuit Breaker
Model: CTB1-63
Rated short-circity capacity lcn, operation short-circuit breaking capacity Ics (See the table below）
| Model | Rated current In (A) | Raled short-cdrcull capediy Icn(A | Operation short-cirouit breaking capacity lcs (A) |
| CTB1-63 | 6~63A | 3000 | 3000 |
| CTB1-63H | 6~63A | 6000 | 6000 |
Mechanica/electrical life (See the tabie below)
| Type | Times | Operation frequency (Times/Hour) | Rated cumentIn{(A) |
| Electrical life | 4000 | 240 | 6~32 |
| 120 | 40~63 | ||
| Mechanical life | 10000 | 240 | 6~63 |
Overcurrent protection charactenistics under 30 C-35 ℃ (see the following table)
| Rated current of trip(A) | Initial state | Test current | Set time | Expected result | Note | ||||||||||||
| 1~63A | Cold state | 1.13In | t≤1h In≤63A | Non-trip | |||||||||||||
| 1~63A | Conducted after the previous test at once | 1.45In | t<1h In≤63A | Trip | The current will stably increase up to the set value within 5s | ||||||||||||
| In≤32 | Cold state | 2.55In | 1s<t<60s | Trip | |||||||||||||
| In>32 | Cold state | 2.55In | 1s<t<120s | Trip | |||||||||||||
| 1~63A | Cold state | 3In 5In |
t≤0.1s t<0.1s |
Non-trip Trip |
B Type | ||||||||||||
| 5In 10ln |
t≤0.1s t<0.1s |
Non-trip Trip |
C Type | ||||||||||||||
| 10ln 20ln |
t≤0.1s t<0.1s |
Non-trip Trip |
D Type | ||||||||||||||
| Model | Pole | To add the neutral line |
In(A) Rated curent In(A) |
Un(V) Rated voltage Un(V) |
Rated residual operated currentI△n(mA) |
Rated residual un-operated currentI△no(mA) |
Breaking time(s) underl△n |
Rated residual making & breaking capacity I△m(A) |
Protection category |
||||||||
| CTB1L | 1 | +N | 6,10,16,20 25,32,40, 50,63 |
230 | 30 50 100 300 |
15 25 50 150 |
<0.1 | 10ln or 500A, take the maximum value | Power distribution protecton |
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| 2 | |||||||||||||||||
| 3 | +N | 400 | |||||||||||||||
| 4 | |||||||||||||||||
Overcurrent protection characteristics under 30℃-40℃(see the following table)
| Rated current of trip(A) | Initial state | Test current | Set time | Expected result | Note | ||||||||||||
| 6-63 | Cold state | 1.13In | t≤1h In≤63A t≤2h In≥63A |
Non-trip | |||||||||||||
| 6-63 | Conducted after the previous test at once | 1.45In | t≤1h In≤63A t≤2h In≥63A |
Trip | The current will stably increase up to the set value within 5s | ||||||||||||
| 6-63 | Cold state | 5In 10In |
t≤0.1s t>0.1s |
Non-trip Trip |
|||||||||||||
| Model | a | b | C | d | |||||||||||||
| CTB1L-32 | 21 | 30 | 39 | 6 | |||||||||||||
| CTB1L-63 | 28 | 46 | 64 | 8 | |||||||||||||
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