L7 Mini Circuit Breaker MCB

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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 material is used for the fuse: Fuses must be easy to melt the wire, in order to fuse when the current is large, play a protective role, so usually lead-antimony alloy wire.

Q: What should you pay attention to when using high voltage fuses?: check the outdoor fuse of the conductive part of the contact is tight, the fuse itself with or without damage, insulation tube with or without damage;

Q: Is the home fuse fine fine or thick?: with two computers, three TV, a refrigerator actual power of nearly 5KW, you can use 20 - 30A fuse

Q: When selecting a fuse, you must consider several elements: Taking into account the actual use and laboratory differences, the use of ambient temperature of 25 ℃ under the conditions,

Q: How do the use of circuit breakers in the end?: the current is too large when the expansion coefficient of the first expansion, play a role in cutting off the powe

Q: When using low-voltage fuses, note that: he correct choice of melt. Fuse and line voltage is the same, the rated current of the melt is less than the rated current of the fuse;

Q: What is the factor of the fuse tube?: The life of the fuse is very long and can be synchronized with the life of the device in the event of no trouble.

Q: What is a quick fuse:: As the semiconductor components of the overload capacity is very low

Q: What material can be used to make fuse fuse: fuse generated when the metal vapor less suitable for high breaking Ability to fuse

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

We are a professional manufacturer engaged in the research, development, production, sale and service of Low voltage electrical products, such as AC contactors, MCBs, MCCBs and RCCBs. Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as the Middle East, Southeast Asia, and so on. We also welcome OEM and ODM orders

1. Manufacturer Overview

Location	Zhejiang,China
Year Established	2010
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Nearest Port	SHGNHAI
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Language Spoken:	ENGLISH,CHINESE
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