NBSe NBSB1 Series 2P 6kA breaking capacity MCB 10amp circuit
breaker
NBSB1 Series MCB is an automatically operated electrical switch
designed to protect an electrical circuit from damage caused by
overload or short circuit. Its basic function is to detect a fault
condition and interrupt current flow. Unlike fuse, which operates
once and then must be replaced, a circuit breaker can be reset
(either manually or automatically) to resume normal operation.
Circuit breakers are made in various sizes, from small devices that
protect an individual household appliance up to large switchgear
designed to protect high voltage circuits feeding an entire city.
1. Application
NBSB1 is mainly used in AC50/60Hz single pole230V or two,three,four
pole 400V voltage for overload and short-circuit protection as well
as for unfrequent on-and-off switching electric equipment and
lighting circuit under nrmal conditionl
the product is suitable for
industry,business,building,ressidence,etc.
It's conformity with CE GB10963,IEC60898 EN898 standards.
2. Main technical data
| Rated temperature 40C |
| Rated voltage 230V/400V AC |
| Rated current: 6,10,15,16,20,25,32,40,50,60,63A
(D):1,3,5,6,10,15,16,20,25,32,40A,50A,63A |
| Electric endurance not lower than 6000 times |
| Mechanical endurance lower than 20000 times |
| Tropical test:2 kinds |
| Weight(g) | 1P | 2P | 3P | 4P |
| 100 | 202 | 304 | 406 |
| Standard | Rated current (A) | Pole | Voltage (V) | Breaking capacity(A) |
| EN898 IEC898 | 1 to 40 | 1 | 240 | 6000 |
| 2,3,4 | 415 | 6000 |
| IEC157-1 | 1 to 40 | 1 | 220/240 | 6000 |
| 2,3,4 | 220/240 | 12000 |
| 2,3,4 | 380/415 | 6000 |
3. Product show
Material: unti-fire Nylon PA66, Copper and silver point.
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 |
5. Our Services
(1) Warranty ( 24 months warranty )
1. The warranty starts from the delivery date from our factory;
2. During the warranty, any defective product will get repaired or
replaced for free ;
3. It is beyond the warranty as the products breaked by the
violence , the carelessness or repaired , altered without
authorization.
(2) Lead Time
1. Sample orders will be delivered from our factory within 7
working days.
2. General orders will be delivered from our factory within 7-15
working days.
3. Bulk orders will be delivered from our factory within 25 working
days at most
(3) Shippment
1. By EMS, DHL, FedEx, TNT, UPS or other express.
2. By our forwarding agent (by air or by sea).
3. By your own forwarding agent.
4. By domestic forwarding agents to any city in China
