L7 Mini Circuit Breaker MCB
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 Pieces pc
- Supply Capability:
- 10000 Pieces per Month pc/month
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Applications:
L7 has protective function of overload, and is used in lighting distribution system in industry, commerce, dwelling and protect fractional electric motors. They also have many merits of high protective grade (up to IP20), high breaking capacity, reliable sensitive action, convenient multi-pole assembling and long life. They are mainly adapted to the circuit of AC 50Hz, 230V in single-pole, 400V in double/three/four-pole for protecting overload and short circuit. Meanwhile, they are also used in turning on or off the electric apparatus and lighting circuit under the normal conditions.
Features:
1) Conforms to standards of electrical EN60898 (IEC898), GB10963-99
2) Rated current: 230V/400V, 50/60Hz
3) Rated breaking capacity: 10kA IEC898 (0.5 - 63A), 15kA IEC947-2 (0.5 - 63A)
4) Short circuit breaking capacity of DC: max. 48V (KL7, 10kA) single-pole, max. 250V (KL7-DC, 6kA) single-pole
5) Performance: C, D characteristic curve
6) Max. fuse that can be connected to: 100AgL (>10kA)
7) Selective grade: 3
8) Working ambient temperature: -5 - 40°C
9) Enclosed protective class: P40 (under mounting)
10) Life:
a) Electrical: not less of 8,000 times switching operation
b) Mechanical: not less of 20,000 times switching operation
Main technical parameters
| Type | L7 |
| Number of poles | 1P 2P 3P 4P |
| Rated Current(In) | 1-63A |
| Rated Voltage(Un) | AC 230(240)/400(415)V |
| Rated frequency | 50(60)Hz |
| Curve | B C D |
| Short-circuit breaking capacity(Icn) | 10000A |
| Magnetic releases operate | B curve: between 3 and 5 In/C curve: between 5 and 10 In/D curve: between 10 and 14 In |
| Endurance | ≥ 4000 |
| Terminal protection | IP20 |
- Q:What is a tube fuse
- The melt of the tube fuse is installed in the fuse
- Q:What are the precautions for using the fuse?
- fuse rated voltage to adapt to the line voltage level, the rated current fuse is greater than or equal to the melt rated current.
- Q:Fuse letter of the fuse
- GL (DIN VDE) / gG (IEC) full range of cable and wire protection
- Q:Fuse according to the breaking current range can be divided into several
- The breaking current range of the back-up fuse refers to a range from 4 to 7 times the rated current from the rated current to the maximum breaking current
- Q:Can the fuse be connected to the zero line?
- then from the zero line to the whole line is the power line ! For maintenance is not very safe! Why does the voltage at home fail to reach 220V
- Q:Is the fuse the capacitor
- When the line occurs short circuit or overload, the heat generated by the high current flowing through the self-recovery fuse causes the polymer resin to melt and the volume grows rapidly to form a high resistance state (b), and the working current is rapidly reduced to limit and protect the circuit.
- Q:Is the fuse the same as the fuse?
- Has aroused the attention of experts and professors from the world.
- Q:What is the working principle of the fuse
- so that the principle of breaking the circuit made of a current protector.
- Q:Fuse blown current and time
- and W = PT which can be seen from the fuse fuse current and time relationship.
- Q:What are the hidden faults of the automatic reset fuse?
- Can automatically reset the fuse, in fact, before N years already have, but applied in other areas, and now the field of electric faucet has emerged some unprofessional manufacturers claim to use the domestic first fuse automatic reset technology
1. Manufacturer Overview |
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| Location | Zhejiang,China |
| Year Established | 2010 |
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| a)Trade Capacity | |
| Nearest Port | SHGNHAI |
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| Language Spoken: | ENGLISH,CHINESE |
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Send your message to us
L7 Mini Circuit Breaker MCB
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 Pieces pc
- Supply Capability:
- 10000 Pieces per Month pc/month
OKorder Service Pledge
OKorder Financial Service
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