Audited Supplier
Low Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Air
Fixed
MCCB
4
Circuit Breaker
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB, Short-Circuit
ISO9001-2000, CCC
JI CHENG
Wooden Box
Wen Zhou
8536620000
Product Description
Product Description
QDW3 series universal Air circuit breaker(hereinafter referred to as breaker)is suitable for the circuit of AC 50Hz with rated voltage 400V, 690V and rated current up to 6300A. It is mainly used to distribute electric energy and protect circuits and power-supply equipment from overload, under-voltage, short-circuit and single-phase earthing. with intelligentized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure. The breaker is applicable for power stations, factories, mines(for 690V) and modern high-buildings, especially for the distribution system of intelligentized building. This breaker conforms to IEC60947-2 and GB14048.2 and CE.
Specifications of Q&S brand QDW3 series Intelligent Air circuit breaker
| Type | QDW3 -2000 | QDW3-3200 | QDW3-6300 | ||
| Pole | 3P, 4P | 3P, 4P | 3P, 4P | ||
| Using category | B | B | B | ||
| Rated current In | A | 630, 800, 1000, 1250, 1600, 2000 | 2000, 2500, 3000 | 4000, 5000, 6300 | |
| Rated frequency | Hz | 50/60 | 50/60 | 50/60 | |
| Rated operation voltage Ue | V | 400 690 | 400 690 | 400 690 | |
| Rated insulation voltage Ui | V | 800 | 800 | 800 | |
| Arcing distance | mm | 0 | 0 | 0 | |
| Rated impulse withstanding voltage Uimp | V | 8000 | 8000 | 8000 | |
| Rated operation short circuit breaking capacity Ics(O-t-CO-t-CO) | 400V | ka | 50 | 80 | 100 |
| 690V | ka | 40 | 50 | 75 | |
| Rated limiting short circuit breaking capacity Icu(O-t-CO) | 400V | ka | 80 | 100 | 120 |
| 690V | ka | 50 | 65 | 85 | |
| Rated short circuit closing capacity Icm | 400V | ka | 176 | 220 | 264 |
| 690V | ka | 105 | 143 | 187 | |
| Rated short time withstanding current Icw(O-t-CO, AC400V 0.4s) | 400V | ka | 50 | 65 | 85 |
| Operation life | per hour | Times | 20 | 20 | 10 |
| Electrical | Times | 1000 | 500 | 500 | |
| Mechanical | Times | 10000 | 5000 | 5000 | |
| Full breaking time | ms | 20~30 | 20~30 | 20~30 | |
| Full closing time | ms | 55~70 | 55~70 | 55~70 | |
| Power consumption | 3P | W | 360 | 1200 | 2000 |
| 4P | W | 450 | 1750 | 2300 | |
| Resistance of each pole | Fixed type | μ Ω | 11 | 9 | - |
| Draw out type | μ Ω | 20 | 14 | 10 | |
| Dimensions(L*W*H) | 3P fixed type | mm | 362*323*402 | 422*323*402 | |
| 3P draw out type | mm | 375*461*452 | 435*471*452 | ||
| 4P fixed type | mm | 457*323*402 | 537*323*402 | ||
| 4P draw out type | mm | 470*461*452 | 550*471*452 | ||
| Approximate weight | 3P fixed type | kg | 41 | 55 | |
| 3P draw out type | kg | 71 | 95 | 245 | |
| 4P fixed type | kg | 51.5 | 65 | ||
| 4P draw out type | kg | 86 | 115 | 260 |
Performance parameters
Product overview
In recent years, with the increasing mobility of the population, the hot season, and distribution transformers in rural areas during the Spring Festival period of severe overload short run problem of rural electricity appears. In order to solve such problem of electricity, the company response to the State Grid Corporation of China in recent years advocated actively develop rural power distribution transformers and high overload capacity application work, we developed a high overload capacity distribution transformers.
High overload capacity integrated rural power distribution transformer station area based on typical load characteristics, high overload distribution transformer overload performance will meet the 1.5 times the rated capacity of six hours, 1.75 times the rated capacity of 3 hours, 2.0 times the rated capacity of one hour of continuous operation stage design requirements, and does not affect the normal life of the
Jicheng Electric Co.. Ltd.is a modern technology companyintegrating R&D,production and sales of electrical equip-ment.it mainly produces high and low voltage complete setsofequipment,box type substations, power transformers, andDC panels.
The company is market-oriented and actively develops newvarieties with independent intellectual property rights andbright science and technology.Products are moving towardszero defects.The company's full implementation of "customeisatisfaction project" has specifically established a strongtechnical after-sales service team to solve various technicaproblems for customers
Faced with the challenges of economic globalization, Kyrgyz-stan has a far-sighted vision. With its brand as its banner andits science and technology as the driving force,it isdetermined to base itself on industrial electrics and adhere tothe development direction of "internationalization, scienceand technology,andindustrialization."
The company'sbroad-mindedness and positive response to the country'scall for the development of electric power for the benefit ofmankind have created a new gloryin the electric powerindustry
