| BKNSeries Miniature Circuit Breaker |
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| BKN miniature circuit breaker is applicable to a line of AC 50Hz/60Hz, 230V in singlepole, 400V in double, three, four poles for protecting overload and short circuit, and rated cur-rent up to 63A. It can also be used for infrequent line conversion under the normal condition.Thebreaker is applicable to lighting distribution system in industrial enterprise, commercially district,high-rise building and dwelling house. It conforms with the standards of IEC60898. |
| 2. Main Technical Parameter |
| Type | BKN | |||||
| Pole | 1P | 2P, 3P, 4P | ||||
| Rated current (A) | 1,2,3,4,5,6,10,16,20,25,32,40,50,63 | |||||
| Rated voltage(V) | 230 | 400 | ||||
| Type of instantaneous release | B C | D | B C | D | ||
| Rated short circuit breaking capacity Icn(KA) | 1-40A: 6 | 4.5 | 1-40A: 6 | 4.5 | ||
| 50-63A: 4.5 | 50-63A: 4.5 | |||||
| Life (times) | 1-32A | Electric life | no less than 6000 operations | |||
| Mechanical life | (O-C) no less than 20000 operations | |||||
| Operation frequency | 240 times per hour | |||||
| 40-63A | Electric life | no less than 6000 operations | ||||
| Mechanical life | (O-C) no less than 20000 operations | |||||
| Operation frequency | 120 times per hour | |||||
| 3. Applicable conducting wire |
| Rated current(A) | Nominal cross section of wire mm2 | |||||
| 1-6A | 1 | |||||
| 10A | 1.5 | |||||
| 16,20A | 2.5 | |||||
| 25A | 4 | |||||
| 32A | 6 | |||||
| 40,50A | 10 | |||||
| 63A | 16 | |||||
| 4. The over-current protection property |
| Ambient Temperature | Initial Status | Test Current | Expected Result | Expected Result | Note | |
| 30±2oC | Cold position | 1.13In | t≥1h | Non-release | - | |
| Carried out immediately after previous test | 1.45In | t<1h | Release | - | ||
| Cold position | 2.55In | 1s<t<60s (In≤32A) | Release | Current smoothly rises to specified value within 5s | ||
| Cold position | 2.55In | 1s<t<120s (In>32A) | Release | |||
| -5~+40oC | Cold position | 3In | t≤0.1s | Non-release | Type B | |
| Cold position | 5In | t<0.1s | Release | Type B | ||
| Cold position | 5In | t≤0.1s | Non-release | Type C | ||
| Cold position | 10In | t<0.1s | Release | Type C | ||
| Cold position | 10In | t≤0.1s | Non-release | Type D | ||
| Cold position | 20In | t<0.1s | Release | Type D | ||
| 5. Dimension |
Q1: Are you a circuit breaker factory or a circuit breaker from a trading company?
A1: We are a factory of circuit breaker.
Q2: Can samples be provided for free?
A2: Samples can be provided, but the sample cost should be paid by you. Sample fees will be refunded after further ordering.
Q3: Do you accept customized orders?
A3: Yes. We can provide OEM, ODM services.
A4: We accept TT, 30% deposit and 70% balance before give delivery.
Q5: When is the delivery time?
A5: It usually takes 15-25 days to confirm payment after LY, but the specific time should be based on the order quantity.
Q6: Tell me the standard of package?
A6: Export standard package or special package according to customer requirement.