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

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:



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.



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

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



Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Fuse fuse is what material
Melt materials are divided into low melting point and high melting point
Q:According to the breaking speed, can be divided into
Fast fuses (generally indicated by F)
Q:How do the use of circuit breakers in the end?
Thermal relay after manual reset and automatic reset.
Q:What is the difference between resistance and resistance fuses
Have the function of resistance, but the resistance fuse is equal to the resistance plus fuse,
Q:How to classify fuses
Fuses for overcurrent protection are commonly known as fuses (also known as current limiting fuses). Fuses for overtemperature protection are commonly referred to as "temperature fuses".
Q:Where the induction cooker fuse is located
one-time over-voltage protection components, only a moment into the high voltage, such as 380V, or lightning, the general situation is very bad chance of bad
Q:What is a spiral fuse:
the current level of 200A the following circuit, for short circuit protection.
Q:What is an open fuse
Breaking the current in the atmosphere to produce a larger sound and light.
Q:What is the fuse of the fuse?
when the arc off, the melting tube can be filled with different current levels of the melt,
Q:What is the best material for electric brake fuses?
Fuse material is mainly made of low-melting alloy such as aluminum antimony alloy. Is to achieve the purpose of lower melting points added.
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
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

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:
No. of Production Lines
Contract Manufacturing
Product Price Range