Frame Circuit Breaker
Frame circuit breaker is used for protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. Embedding Micro Logic control units, it contributes to safety and energy efficiency. The range covers ratings from 800 to 6300 A in two different sizes.
Description
Wenzhou Lanen Electrical Co., Ltd. is one of the leading manufacturers and suppliers of frame circuit breaker in China. We are committed to provide high quality customized products with low price. If you're going to buy advanced frame circuit breaker made in China, welcome to get more discount information from our factory.
Description
Frame circuit breaker is used for protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. Embedding Micro Logic control units, it contributes to safety and energy efficiency. The range covers ratings from 800 to 6300 A in two different sizes.
In the event of a short circuit or fault, breakers quickly isolate the issue, unloading the excess current from the system. This helps prevent lasting damage to equipment and ensures power is restored safely and efficiently. Beyond protection, frame circuit breaker play a vital role in routine switching operations to maintain system stability and control. Their precise design and fast response are critical to ensuring uninterrupted, reliable electricity supply across today's complex power networks.

◇Featured with complete intelligence,high breaking capacity and zero arc;
◇AC rated current200A-6300A,short-circuit breaking capacity 85kA~120kA;
◇3 and 4 poles,draw-out type and fixed type,and can be installed with inverted wires;
◇With multiple intelligent controllers,providing different functions;intelligent function,display function

Technical data and performance
◎1.The rated current of the circuit breaker is shown in Table1
|
Rated frame current Inm A |
Rated current In A |
|
2000 |
400,630,800,1000,1250,1600,2000 |
|
3200 |
2000,2500,2900,3200 |
|
4000 |
3200,3600,4000 |
|
6300 |
4000,5000,6300 |
◎2.The rated short-circuit breaking capacity and short-term withstand current of the circuit breaker are shown in Table2,and the arc distance of the circuit breakers "zero"(i.e.there is no arc outside the circuit breaker) Table2
|
Rated frame current InmA |
2000 |
3200 |
4000 |
6300 |
|
|
Rated ultimate short-circuit breaking capacity Icu (KA)0-CO |
400V |
80 |
100 |
100 |
120 |
|
690V |
50 |
65 |
65 |
85 |
|
|
Rated short-time making capacity n×lcu(KA)/-cos |
400V |
176/0.2 |
220/0.2 |
220/0.2 |
264/0.2 |
|
690V |
105/0.25 |
143/0.2 |
143/0.2 |
187/0.2 |
|
|
Rated service short-circuit breaking capacity Ics(KA)O-CO-CO |
400V |
65 |
80 |
80 |
100 |
|
690V |
50 |
50 |
65 |
75 |
|
|
Rated short-time withstand current Icw (KA)1s,delay 0.4s,O-CO |
400V |
50 |
65 |
65/80(MCR) |
85/100(MCR) |
|
690V |
40 |
50 |
50/65(MCR) |
65/75(MCR) |
|
Draw-out Type – NW1-2000, 2000/4

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