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Phone Number:0769-85963872
  • DongGuan FangXiong Electric Co., Ltd|通讯继电器|通用功率继电器|汽车继电器|磁保持继电器
  • DongGuan FangXiong Electric Co., Ltd|通讯继电器|通用功率继电器|汽车继电器|磁保持继电器
  • DongGuan FangXiong Electric Co., Ltd|通讯继电器|通用功率继电器|汽车继电器|磁保持继电器
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DongGuan FangXiong Electric Co.,Ltd

Tel: 0769-85963872
Fax: 0769-85878012
Headquarters / South China:
Contact: Mr. Yang
Tel: 13711958699
Q Q: 2605682589
E-mail: yzs901@163.com

Contact: Miss. Wu
Tel: 18938513087
Q Q: 1519433726
E-mail: 1519433726@qq.com

East China, North China and other regions:
Contact: Mr. Yang
Tel: 13711835029
Q Q: 446323763
E-mail: Fxrelay@163.com

Ministry of Foreign Trade:

Contact: Ken Yu
Tel: (0086)15913711992
Q Q: 2812714675
E-mail: fxrelay02@163.com

Website: www.fangxiongrelay.com
Add: No.42, Fuxing Street, Bailu Industrial Zone, Houjie Town, Dongguan City

Industry NewsCurrent Location:Home -> Industry News

What is the principle of electromagnetic relay?

Time:2018-04-13 14:19:45Clicking rate:

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The relay is an electromechanical switch. It is an enamelled copper wire wound on a round iron core for several hundred to several thousand turns. When a current flows through the coil, the round iron core generates a magnetic field, and the upper side of the round iron core is provided. The iron plate of the contact piece is attracted to open the first contact and the second switch contact. When the coil is de-energized, the core loses its magnetic properties, and due to the elastic action of the contact copper piece, the iron plate leaves the iron core and resumes connection with the first contact. Therefore, it is possible to control the switches of other circuits with a small current. The entire relay is protected by a plastic or plexiglass dust cover, and some are fully sealed to prevent electro-oxidation.
As shown in the figure above, when the switch K in the control circuit is closed, the electromagnet is magnetic, the armature is sucked down, the relay contacts are contacted, and the power supply circuit connected to the contact is turned on; when the control switch K is disconnected When the magnet's magnetism is removed, the relay contacts pop open and the power circuit is disconnected.

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