Product Description:Application Model and meaning
Basic specification and main parameters The over-current tripping unit protection feature
Dimensions(mm) Characteristics curve
Technique parameter:Application
KNB6-40 series Miniature Circuit Breaker is nice in appearance,reasonable in structure,sound in feature and high in breaking capacity.Installed with standard din rail,it is convenient and easy in usage.It is mainly used in the line of AC 50/60Hz,rated working voltage to 240V,and rated current to 40A as protection against overload and short-circuit.It can be used as infrequent on-and-off operation and changeover.
It complies with standard of GB10963 and IEC/EN60898.
Basic specification and main parameters
| Frame class | 40A |
| Rated working voltage | 240V |
| Rated frequency | 50/60Hz |
| Rated working current | 6,10,16,20,25,32,40A |
| Making and breaking capacity | 6000A |
| Release type | C |
| Poles | 1P+N |
| Mechanical life | 8000 |
| Electric life | 4000 |
Dimensions(mm) 
Model and meaning 
The over-current tripping unit protection feature
Sequence
NO . | Release | Test
current I/In | Start state | Tripping
time | Expected
restlt |
| 1 | C | 1.13In | Cold state | t≤1h | Not tripping |
| 2 | C | 1.45In | Start right after
the serial NO.1test | t<1h | Tripping |
| 3 | C | 2.55In | Cold state | 1s | Tripping |
| 4 | C | 5In | Cold state | t≤0.1s | Not tripping |
| 5 | C | 10In | Cold state | t<0.1s | Tripping |
Characteristics curve
Wenzhou Korlen Electric Appliances Co., Ltd, It is a joint venture. My company is a manufacturer including design, development, produce and sale, professional producing MCB, MCCB, RCCB and AC contactor etc. Product enterprises. The company owns import and export power of self-run, expanding Europe and America, Middle East, Southeast Asia etc. Market, set a good Public praise.
The company have more than 1500 workers, including senior engineer among them, engineer at inside of more than 100 technician. And then set up to cover area more than 50 acres, construct area is more than 38000 square meters of the modern industrial zone, providing with the forerunner's standard laboratory and various examination equipments.
Under Korlen people to make great effort unremittingly, designed and developed by oneself, develop and produce the series of MCB, RCCB filled up local blank, attain inter-national advanced level, and acquire more than 20 national patents. The company acquires "30 strong eminent enterprises, top ten of export income, yueqing star class enterprise, attach importance to contract and keeps promise" title of honor for many times past years. Company still the initiative pass ISO 9001 management system verification and 14001 environments management system verification. Our product passed quality verification of domestic and international authority organization like the CB\ SEMKO\ NF\ SIRIM\ SNI\ CE \PCT\ TSE, In the meantime high breaking capacity breaker of our company in this city is the unique product which got " Yueqing famous brand product" by Yueqing people government.
Korlen Electric Appliances is willing to make friends with social public, the world outside businessman join hands together for prosperous society and development to build a brighter future.
