SEV SEVI Polarity Nonpolarity High Voltage DC Contactor 10A 20A 30A 50A 100A 150A 200A 250A 300A For Electric Vehicle

Product Features

1.Full seal construction and high safety

2.Coil voltage:12VDC and 24VDC

3.Small size and high switching power

4. Full sealed inside by epoxy encapsulation technology to insure coil and contactor against being oxidized for long time

5.Use permanent magnet to eliminate electrica arc,high reliability

6. Implementation criteria:GB/T 14048.4-2010

7. Certification: CCC number 2019010304167727

Application

Mainly used in high voltage main circuit,pre-charge circuit,slow charging circuit,fast charging circuit,high voltage auxiliary system of electromobile,as well as high voltage main circuit system in charging pile,power control system of wind power,photovoltaic

Outline And Dimensions

Coil Operating Voltage

Peformance Parameter

Product life estimated(Make/Break):

Product life estimated(Make/Break) curve under resistive load

Continuous current range

Use Precautions Of High Voltage DC Contactors

1. Contacts with the polarity of contactor,please operate according to the product identification promp.

2. Do not use fallen products.

3.Avoid installing products in strong magnetic fields(near transformers or magnets) or near objects with thermal radiation.

4. The product with energy saver has a reverse surge absorber circuit,so there is no need to use surge protector.
5.About 0.1 seconds after the product with energy saving board is connected to the power supply,the circuit starts to switch automatically.Do not turn off repeatedly at the same position,otherwise the contactor energy saving board may be damaged.
6. About the load life: This contactor is a high voltage DC switch,please do not exceed its switching ability and life parameters in the state of use,otherwise may lose the ability to cut off.Please replace if necessary.
7. If the coil and contacts of the contactor are continuously connected to the rated voltage(or current),the power supply is cut off and then switched on immediately,then the resistance of the coil will increase as the temperature of the coil increases,thus increasing the pick-up voltage of the product and possibly leading to excess of the rated suction voltage.In this case,the follwing measures should be taken: such as reducing the load current,limiting the duration of power on or using coil voltage higher than the rated pick-up voltage.
7. If the coil and contacts of the contactor are continuously connected to the rated voltage(or current),the power supply is cut off and then switched on immediately,then the resistance of the coil will increase as the temperature of the coil increases,thus increasing the pick-up voltage of the product and possibly leading to excess of the rated suction voltage.In this case,the follwing measures should be taken: such as reducing the load current,limiting the duration of power on or using coil voltage higher than the rated pick-up voltage.

Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components.

We introduced advanced quality system,management systems and high-precision automation equipment from Germany, set up multiple production bases and continue to increase product lines. Our team consist of experienced engineers, passionate business elites, and regularly trained skilled workers, which provides a solid foundation for quality assurance and productivity performance. Moreover, our products have passed safety certifications of many countries and are favored by many consumers by years’ unremitting efforts.

We cooperated with universities and colleges, and will continue to research and develop new products , committed to high-quality circuit protection solutions, and provide global customers with efficient technology, products, and testing support to meet their requirements for rapid development of new products. We are gradually updating from "Made In China" to "Created In China" and to "Intelligent Manufacturing In China", from circuit design to product testing, we will provide you with one-stop service in the field of circuit protection.After years of intensive cultivation, we have maintained a good relationship with our peers and have become distributor of many famous electronic component brands to meet the diverse needs of customers.

The main products include: Thermistors, Varistors, Temperature Sensors, Fuses and corresponding Hardware and Plastic accessories, Inductors, Thermal Protector, Overload/Composite Protectors, Discharge Tubes, Photoresistors and Wiring Harnesses etc. Through the combination of different process devices,Ampfort Electronics can meet customers' individual circuit protection requirements. Our products are widely used in: power adapters, switching power supplies, chargers, transformers, computers, telephones, household appliances, communication products, lighting products, toy products, various instruments and various electronic cables, electrical products, IT, Consumer electronics, automobiles, batteries and other fields.

Choose us, Ampfort will be your loyal and reliable partner for protection circuit products !

Philosophy  Survive with integrity and service, and develop with quality and innovation.

Goal             Standardization Systemization Internationalization Leading leader in the same industry

Purpose       Serve customers and develop enterprises

                     Benefit the employees and return to the society

Mission  Dare to compete, be good at competition, win the competition

Vision     Full of ambition today and hope tomorrow will be fruitful.

Message Innovate,forge ahead and hold hands, harvest brilliance and share together.