- [email protected]
- No.88, Weishijiu Road,Economic Development Zone, Yueqing, Zhejiang Province,China (PC: 325600)
- +86-13968736669
Rated short-circuit capacity Icn, operating short-circuit breaking capacity Ics
| Model | Rated current | Rated short circuit current (A) | Operation short-circuit segmentation capacity (A) |
| BF2－63 | 6~63A | 6000 | 6000 |
Overcurrent protection characteristics at 30 C ~35´℃
| Rated current of release (A) | Starting state | Test current | set time | expected results | Remarks |
| 6~63 | Cold state | 1.13In | t≤1h In≤63A | No tripping | |
| 6~63 | Immediately after the previous test | 1.45In | t<1h In≤63A | Trip | The current steadily rises to the specified value within 5s |
| In≤32 | Cold state | 2.55In | 1s<t<60s | Trip | |
| In>32 | Cold state | 2.55In | 1s<t<120s | Trip | |
| 6~63 | Cold state | 3In | t≤0.1s | No tripping | Type B |
| 5In | t<0.1s | ||||
| Cold state | 5In | t≤0.1s | No tripping | Type C | |
| 10In | t<0.1s | ||||
| Cold state | 10In | t≤0.1s | No tripping | Type D | |
| 20In | t<0.1s |
Mechanical and electrical life
| category | frequency | Operating frequency (times/hour) | Rated current (A) |
| Electrical life | 4000 | 240 | 6~32 |
| 120 | 40~63 | ||
| Mechanical life | 20000 | 240 | 6~32 |
Wiring: It is suitable for wire connection of less than 25mm² and the wiring method is tightened with screws, and the torque is 2N·m.
| Rated current In(A) | Nominal cross-sectional area of copper wire (mm’) |
| 6 | 1 |
| 10 | 1.5 |
| 16、20 | 2.5 |
| 25 | 4 |
| 32 | 6 |
| 40/50 | 10 |
| 63 | 16 |
Power consumption per pole of circuit breaker
| Rated current In(A) | Maximum power consumption per pole (W) |
| 6～10 | 2 |
| 16~32 | 3.5 |
| 40～63 | 5 |
Structural features
Composed of plastic shel,operating mechanism, contact arc extinguishing system, tripping mechanism, etc.;
The shellis made of special plastics with high flame resistance, high temperature resistance and high strength, which has strong impact resistance and light weight;
The parts of the operating mechanism of the circuit breaker are made of high-strength plastic products, which ensure the sensitivity and reliability while obtaining the lowest moment of inertia.The time from the start of the short-circuit fault to the action of the tripping mechanism is very short;
The tripping mechanism is composed of two parts: a bimetalic overload anti-time tripping mechanism and a short-circuit transient electromagnetic mechanism;
The contact arc extinguishing system uses a special arc guide angle and arc extinguishing chamber, which has significant current limiting characteristics;
Applicable working conditions and working environment:
a.Ambient temperature: ambient temperature -25’C ~+60 C, when the ambient temperature is not the reference 30, please refer to Table
6 for coefficient correction.
| Ambient temperature ℃ | -30 | -20 | －10 | 0 | 10 | 20 | 30 | 40 | 50 | 60 |
| Current correction factor | 1.30 | 1.25 | 1.20 | 1.15 | 1.10 | 1.05 | 1.00 | 0.95 | 0.90 | 0.85 |
b.Altitude: The altitude of the installation site does not exceed 2000m.
c.Installation method: Install with TH35-7 5 steel installation rail.
With isolation function
The user must specify the following points when placing an order:
Product model and name, such as BF2-63 miniature circuit breaker;
Instantaneous release type: such as C type;
Rated current: such as 20A;
Number of poles: two poles;
Order quantity: such as 50 sets;
Order example: BF2-63 miniature circuit breaker, C20, 2P, 50 units.
