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 does fuse insurance mean?
- When the circuit occurs short circuit or over current, through the melt current to heat; when the melt metal melting temperature to achieve their own fuse
- Q: What is a tube fuse
- The fuse is a completely sealed insulating tube with a metal cap or a stylus at both ends
- Q: The difference between the fuse and the air switch
- fast fuse in the fault can only disconnect the three-phase power phase or two phases, and electrical equipment is charged
- Q: What is a spiral fuse:
- the current level of 200A the following circuit, for short circuit protection.
- Q: If it is possible, is it possible to have an electric shock?
- The line is too long and the wire Too thin, then there will be a pressure drop! There is the use of this line is too high! I use the voltage meter to find the voltage when the voltage is 170V
- Q: When the melt is blown, what are the possible reasons
- the use of the melt too long, the melt due to oxidation or high temperature during operation, so that the characteristics of the melt and make mistakes.
- Q: What is the fuse often used?
- Fuse material is mainly made of low-melting alloy such as aluminum antimony alloy.
- Q: Is the fuse blown depending on the size of the current flowing through it?
- This shows that the fuse can only be placed in the operating voltage is less than or equal to the rated voltage fuse circuit.
- Q: The difference between DC fuses and AC fuses
- Alternating current is a sinusoidal waveform alternating conduction, the weekly wave has a zero, then the minimum value of electricity is very easy to extinguish the arc
- Q: What is a semi-enclosed fuse
- and is inserted into a porcelain box with a metal receptacle at both ends for use in low-pressure indoor use
1. Manufacturer Overview
| Location | Zhejiang,China |
| Year Established | 2010 |
| Annual Output Value | |
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2. Manufacturer Certificates
| a) Certification Name | |
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3. Manufacturer Capability
| a) Trade Capacity | |
| Nearest Port | SHGNHAI |
| Export Percentage | |
| No.of Employees in Trade Department | |
| Language Spoken: | ENGLISH,CHINESE |
| b) Factory Information | |
| Factory Size: | |
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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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