High-Performance Air Circuit Breaker for 3p and 4p Systems

Product Description

TNCW1-1600 Universal Frame Circuit Breaker

      Universal circuit breaker, also known as frame circuit breaker, is a mechanical switchgear that can connect, carry and disconnect current under normal circuit conditions, as well as connect, carry and disconnect current for a certain period of time under specified abnormal circuit conditions. Universal circuit breakers are used to distribute electrical energy and protect lines and power equipment from overload, undervoltage, short circuits, etc.

      This type of circuit breaker usually has a steel frame, and all components are installed inside the frame. It has a large capacity and can be equipped with multiple functional release devices and more auxiliary contacts. It has high segmentation ability and thermal stability, so it is commonly used in places that require high breaking capacity and selective protection.

     The circuit breaker is arranged in a three-dimensional form, with the contact system and the left and right side plates of the instantaneous overcurrent release installed on one insulation board. The upper part is equipped with an arc extinguishing system, and the operating mechanism can be installed in the front or right side, with "open" and "close" indicators and a manual disconnect button. It is equipped with a shunt release on the upper left and an undervoltage release connected to the release half shaft on the back. The speed saturation current transformer or current voltage converter is mounted on the lower busbar. Undervoltage delay devices, thermal relays, or semiconductor release devices can be installed below. 
     The intelligent universal circuit breaker is suitable for distribution networks with AC 50Hz, rated voltage of 380V, 660V, and rated current of 200A-6300A. It is mainly used to distribute electrical energy and protect lines and power equipment from overload, undervoltage, short circuit, single-phase grounding and other faults. The circuit breaker has multiple intelligent protection functions, can achieve selective protection, has precise action, avoids unnecessary power outages, and improves power supply reliability. Under normal conditions, it can be used for infrequent switching of lines. Circuit breakers below 1250A can be used to protect motors from overload and short circuit in AC 50Hz voltage 380V networks. Under normal conditions, it can also be used for infrequent starting of electric motors.
 

Working Environment:

1.The upper limit of the surrounding air temperature shall not exceed+40 ºC, the lower limit shall not be lower than -5 ºC, and the average value over 24 hours shall not exceed+35 ºC.

2.The installation location shall not exceed an altitude of 2000m.

3.The relative humidity of the atmosphere shall not exceed 50% when the ambient air temperature is+40 ºC.

4.Installation conditions: Can be installed vertically or horizontally.

5.Installation category: The main circuit and undervoltage vent of the circuit breaker are connected, the installation category of the primary coil of the power transformer is IV, and the installation category of other auxiliary circuits and control circuits is III.

 

Product Parameters

 

Detailed Photos

 

 

 

 

 

      Wenzhou Naisite Electric Co., Ltd is a technology oriented transmission and distribution equipment manufacturing enterprises, since its establishment in 2011, focus on transmission and distribution equipment technology progress, advocating technological innovation, introduce new energy prefabricated, a secondary fusion ring cage, environmental protection cabinet,Transformers, cable branch box, box type substation such as intelligent high and low voltage transmission and distribution equipment. Applicable to electric power, railway, petrochemical, subway, municipal construction, steel, coal and other industries. The company's products have achieved a number of technological breakthroughs in environmental protection, miniaturization, intelligence, maintenance free and other aspects. The headquarters of Wenzhou Naisi Electric Co., Ltd is located in the core area of Wenzhou Yueqing Economic Development Zone, "the capital of Electrical appliances in China". Has an excellent domestic intelligent distribution network products assembly line.

      The company has a vacuum box helium leak detection system, local discharge test laboratory and other advanced inspection and test equipment system. With the basic experimental facilities and research environment needed for advanced technology development and scientific research, the products are tested according to the international IEC standards. The enterprise has passed the IS09001 quality system certification, IS014001 environmental system certification and OHSAS18001 occupational health and safety management system certification, the products have been obtained the CNAS national accreditation laboratory certification report.

 

 

 

Q: Are you a trading company or manufacturer ?

A: We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc.Our factory is the excellent supplier of State Grid Corporation of China .

 

Q: Do you accept customized serveice ?

A: We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters .

 

Q: What is your MOQ?

A: Our MOQ is 1 piece .

 

Q:How long is your delivery lead time ?

A: It depends on your product requirement and quantity . Generally , 5~10 working days is available .

 

Q: How do you solve quality problems?

A: Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days.

 

Q: What is your payment terms ?

A: 30%T/T in advance,70% before shipment . West union , L/C are also acceptable .