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BKN 1A
Basic Info.
| Model NO. | BKN |
| Poles Number | 1 |
| Type | Circuit Breaker |
| Function | Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection) |
| Certification | ISO9001-2000, CE, CB, CCC |
| Transport Package | 240PCS/Bag |
| Specification | Int′l Standards |
| Trademark | OEM |
| Origin | Wenzhou |
| HS Code | 8536200000 |
| Production Capacity | 10000PCS/Week |
Product Description
1.Application
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.
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) | Norminal 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 immediatelyafter previous test | 1.45In | t < 1h | Release | - | |
Cold position | 2.55In | 1s < t< 60s(In≤32A) | Release | Current smoothly rises tospecified 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 | |
