High-Speed Overcurrent Protection Gwiec 3pole MCB Mini Circuit Breaker L7

Product Description

Product Description

L7 APPLICATION

The products of GIEL7 belong to the advanced lavel of the nineties in the international instead of the older generation of GIEL7. They have protective function as shortage as overload. and are used in lighting distribution system in industry, commerce and dwelling, and protecting fractional electric motors. And they also have many merits of high protective grade (up to IP20), high break capacity, reliable sensitive action, convenient, multipole assembing, long life etc. They are mainly adapted to the circuit of AC 50Hz, 230V in single pole, 400V in double, three, four polas for protecting overload and short circuit. Meanwhile. thev are also used in turning on or off the electric apparatus and lightina circuit under the normal condition.

 

Poles (P)						1,2,3,4
Rated Voltage(V)						230/400
Mechanical and Electrical life						(0-C)not less then 6000 operations
Rated current(V)						1,2,3,4,6,10,16,20,25,32,40,50,63
Rated voltage(Un)						AC240/415V
Protective grade						IP20
Breaking capacity						IEC60898
Rated breaking capacity(Icn)						10000A
Endurance						≥2500
Circumstance temperature						-5ºC+40ºC
Electrical life						≥8000 times
Mechanical life						4000 times
Tropical ration						Treatment 2(RH95%,at 55ºC)
Protection grade						IP20

Company Profile

 

 

FAQ

FOR MINI CIRCUIT BREAKER
1.  Question: What is the primary function of a miniature circuit breaker?
Answer: The primary function of an MCB is to protect electrical circuits from damage caused by overcurrent, short circuits, and in some cases, overload. It automatically interrupts the flow of electricity when a fault is detected and can be manually reset after the issue is resolved.
2.  Question: How do I know the correct size of MCB to use for my circuit?
Answer: The correct size of an MCB should be chosen based on the circuit's load requirements. It should not be rated lower than the maximum current the circuit will draw, but also not so high that it fails to trip during an overload.
3.  Question: Can MCBs be used for overload protection?
Answer: Yes, MCBs can provide overload protection, but they are not as sensitive as thermal overload protectors. They are more effective at protecting against short circuits and severe overloads.
4.  Question: What happens if an MCB is rated too high for a circuit?
Answer: If an MCB is rated too high, it may not trip during an overload, which can lead to overheating and potential damage to the wiring or connected devices. It is crucial to select the correct rating to ensure safety and proper operation.
5.  Question: How often should MCBs be tested to ensure they are functioning properly?
Answer: MCBs should be tested regularly to ensure they can trip under fault conditions. This is typically done using a test button that simulates a trip condition. The frequency of testing can depend on local regulations and the specific application, but it is generally recommended to test at least annually.
6.  Question: Do MCBs require maintenance?
Answer: MCBs generally require minimal maintenance, but they should be visually inspected periodically for signs of wear or damage. If an MCB trips frequently without an apparent cause, it may need to be replaced or the circuit should be checked for underlying issues.
7.  Question: What should I do if an MCB trips frequently?
Answer: If an MCB trips frequently, first check for any obvious signs of overload, such as too many devices being used on the same circuit. If no overload is apparent, consult an electrician to diagnose and correct any underlying electrical issues.
8.  Question: Can MCBs be used in outdoor applications?
Answer: MCBs can be used in outdoor applications, but they must be installed in weatherproof enclosures to protect them from the elements and ensure they function correctly.