描述
Appliacation
ADB3-63 miniature circuit breaker is suitable for AC 50/60Hz rated voltage 230V/400V, rated current up to 63A lines for overload and short circuit protection, also under normal conditions as infrequent operation conversion of lines.
The circuit breakers are suitable for use in various places such as industrial, commercial, high-rise and civil housing.
Standards: GB/T 10963.1, IEC60898-1.
Types and meanings
1.Enterprise code
2.Miniature circuit breaker
3.Design serial number
4.Frame class rated current
Main parameters and technical performance
3.1 Main specifications
3.1.1 According to the rated current In is divided into: 1A, 2A, 3A, 4A, 5A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A;
3.1.2 According to the type of instantaneous decoupler: Type B (35) In; Type C (510) In; Type D (10~20) In,
3.1.3 Divided by the number of polesa. Single-pole circuit breakers.
a.One pole circuit breaker.
b.Two poles circuit breaker.
c.Three poles circuit breaker.
d.Four poles circuit breaker.
3.2 Main technical parameters.
3.2.1 Rated short-circuit capacity (see Table 1).
Table 1
| Rated current | Number of poles | Rated voltage (V) | Rated short circuit current(A) | Operating short circuit current(A) |
| 1~63A | 1 | 230/400 | 6000 | 6000 |
| 2, 3, 4 | 400 |
3.2.2 Mechanical and electrical life (see Table 2)
Table 2
| Category | Times | Operation frequency (Times/hour) | Rated current |
| Electrical life | 10000 | 240 | 1~32 |
| 120 | 40~63 | ||
| Mechanical life | 20000 | 240 | 1~63 |
3.2.3 Overcurrent protection characteristics (at 30℃to 35℃) (see Talole 3)
Table 3
| No. | Rated current of release (A) | Initial state | Test current | Rated time | Expected results | Remark |
| 1 | 1~63 | Cold state | 1.13In | t≤1h | Non-trip | Current rises steadily to the specified value within 5s |
| 2 | 1~63 | Performed immediately after the previous test | 1.45In | t＜1h | Trip | |
| 3 | In≤32 | Cold state | 2.55In | 1s＜t＜60s | Trip | |
| In＞32 | Cold state | 2.55In | 1s＜t＜120s | Trip | ||
| 4 | 1~63 | Cold state | 3In | t≤0.1s | Non-trip | Curve B |
| 5In | t＜0.1s | Trip | ||||
| 5In | t≤0.1s | Non-trip | Curve C | |||
| 10In | t＜0.1s | Trip | ||||
| 10In | t≤0.1s | Non-trip | Curve D | |||
| 20In | t＜0.1s | Trip |
3.2.4 Release characteristic curve
3.2.5 Wiring: for wire connections up to 25mm2 (see Table 4),wiring method with screws,torque 2N-m.
Table 4
| Rated current In(A) | 1~6 | 10 | 16, 20 | 25 | 32 | 40, 50 | 63 |
| Nominal cross-sectional area of copper conductors (mm²) | 1 | 1.5 | 2.5 | 4 | 6 | 10 | 16 |
Main parameters and technical performance
4.1 Structural features
4.1.1 High rated short-circuit breaking capacity, all rated short-circuit current levels can reach 6kA.
4.1.2 Combined terminal block with finger touch protection and red and green safety indication, higher safety.
4.1.3 The shell and some functional parts are made of highly flame-retardant, high-temperature and impact-resistant plastics imported from abroad.
4.1.4 Applicable working conditions and working environment.
a.Ambient temperature: Ambient temperature -25℃ ~ +60℃, when the ambient temperature is not the benchmark of 30℃, refer to the coefcient correction of (Table 5).
b.Altitude: The altitude of the installation site should not exceed 2000m.c.
Mounting method: TH35-7.5 steel mounting rail is used for mounting.
4.2 With isolation function
Table 5
| Ambient temperature ℃ | -30 | -20 | -10 | 0 | 10 | 20 | 30 | 40 | 50 | 60 |
| Current correction factor | 1.3 | 1.25 | 1.2 | 1.15 | 1.1 | 1.05 | 1 | 0.95 | 0.9 | 0.85 |
Out line and installation dimensions
Ordering specifications
6.1 Product type and name, e.g. ADB3-63 miniature circuit breaker.
6.2 Number of poles, e.g. 2P.
6.3 Type of instantaneous release and rated current, e.g. C20.
6.4 Example of an order: ADB3-63 miniature circuit breaker, 2P, C20, 500 units.
Product Information
