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Control and protection electrical appliances and terminal electrical appliances
WHKB1-40 (1P + N) Series Miniature Circuit Breaker
WHKB1-40 series mini circuit breaker is suitable for single-phase residential lines with AC 50Hz or 60Hz and rated voltage 230V and below to protect electrical lines from overload and short circuit. The product has high breaking capacity and small size.
Product Details
Model and Meaning
Technical Specifications
Appearance and dimensions
WHKB1-40 series mini circuit breaker is suitable for single-phase residential lines with AC 50Hz or 60Hz and rated voltage 230V and below to protect electrical lines from overload and short circuit. The product has high breaking capacity and small size. It is the most suitable product in the residential field at present. The zero and live wires are cut off simultaneously, the live wires, the neutral wires are connected reversely or the ground potential and fire danger caused by the neutral wires.
| WHK | B1 | — | 40 | ☐ | / | ☐ | ☐ | ☐ |
|---|---|---|---|---|---|---|---|---|
| Enterprise code | Design serial number |
Shell frame grade Rated current |
Rated short circuit Breaking capacity (None: 4500A; H: 6000A) |
Number of poles 1P + N |
Instantaneous trip characteristics: Type C power distribution; D-type motor protection |
Rated current |
◆Main Specifications and Parameters
|
Shell frame grade Rated current (A) |
Rated current (A) |
Number of poles |
Rated voltage (V) |
Mechanical life (times) |
Rated short circuit breaking capacity |
|---|---|---|---|---|---|
|
Expected current of test line (A) |
|||||
| 40 |
6、10、16 20、25、32、40 |
1P + N | 230 | 20000 | 4500 |
| 40H |
6、10、16 20、25、32、40 |
1P + N | 230 | 20000 | 6000 |
◆Overcurrent trip characteristic
|
Test current (A) |
Rated voltage (V) |
Prescribed time | Expected Results | Initial state | remark |
|---|---|---|---|---|---|
| 1.13 In | All values | t ≥ 1h | Non-tripping | Cold state | The current steadily rises to a predetermined value within 5s |
| 1.45 In | All values | t < 1h | Trip | Thermal state | Close auxiliary switch on current |
| 2.55 In | In ≤ 32 A | 1 < t < 60s < td="">< / t < 60s < > | Trip | Cold state | Close auxiliary switch on current |
| 5In (type C) | All values | t ≥ 0.1 s | Non-tripping | Cold state | Close auxiliary switch on current |
| 10In (type C) | All values | t < 0.1 s | Trip | Cold state | Close auxiliary switch on current |
| 10In (D type) | All values | t ≥ 0.1 s | Non-tripping | Cold state | Close auxiliary switch on current |
| 14In (D type) | All values | t < 0.1 s | Trip | Cold state | Close auxiliary switch on current |
◆ Comply with standards: IEC60898, GB10963.1
◆ Operating temperature:-35 ℃ + 70 ℃, the average temperature within 24 hours does not exceed + 35 ℃
◆ Altitude: ≤ 2000m
◆ Atmospheric conditions: The relative humidity of the air at the installation site is ≤ 50% at + 40 ℃, and the maximum is 90%
