NBSM1-125 Series Mini Circuit Breaker , din mount circuit breaker
A residual-current device (RCD), or residual-current circuit
breaker (RCCB) is an electrical wiring device that disconnects a
circuit whenever it detects that the electric current is not
balanced between the energized conductor and the return neutral
conductor. Such an imbalance may indicate current leakage through
the body of a person who is grounded and accidentally touching the
energized part of the circuit. A lethal shock can result from these
conditions. RCCBs are designed to disconnect quickly enough to
prevent injury caused by such shocks. They are not intended to
provide protection against overcurrent (overload) or all
short-circuit conditions.
1. Application
DN DK mcb 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: 6,10,15,16,20,25,32,40,50,60,63,80,100,125A |
| 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
