How to choose rotary switch
In our daily life, the switch is one of the essential hardware accessories. At present, there are many kinds of switches, among which the rotary switch is a more common one. It is widely used in electric products such as electric fans and table lamps. So how to choose a rotary switch, rotary switch what brand is good, the following text will come to tell you under the bar.
How to choose rotary switch
1. Look at the shell material
At present, the excellent quality rotary switch panels are mainly made of PC material. The PC material has excellent impact resistance and high temperature resistance, and is not prone to discoloration. Therefore, it is best to choose the PC material rotary switch when buying.
2. Look at the contact material
At present, the rotary switch contact materials on the market are mainly divided into three types: silver nickel alloy, silver cadmium alloy and pure silver. Among them, the silver-nickel alloy is the most excellent, has excellent conductivity, excellent hardness, and is not prone to oxidation and rust. The silver-cadmium alloy contact is also excellent in all aspects, but cadmium is a heavy metal element, which is harmful to human health. At the same time, the fusion of the silver-cadmium alloy is relatively poor, it is easy to generate small particles on the surface of the contact, and it is easy to cause arcing when conducting .
3. Look at the weight
When we choose a rotary switch, we can also pick up the switch. The excellent quality switch usually uses a lot of copper and silver metal, which will not give people a light and fluttering feeling. In addition, we also need to test the switch. The excellent quality of the switch spring is excellent in elasticity, and there will be no situation where the switch button stops at a certain position in the middle.
What brand of rotary switch is good
1. CHINT CHINT
Zhengtai is a switch brand under Zhejiang Zhengtai Construction Electric Co., Ltd. It is a well-known trademark in China, and one of the top 500 private enterprises in China. It is the largest low-voltage electrical appliance manufacturer in China with excellent product quality and is favored by many consumers.
2. Hongyan
Founded in 1981, Hongyan is a brand of Hangzhou Hongyan Electric Co., Ltd. It is a well-known manufacturer of construction electrical products in China and a key industrial enterprise in Hangzhou. It has great influence in China's switch electrical industry.
3. Longsheng
Longsheng Switch is also a well-known brand of switch sockets in China. It belongs to the brand of Zhejiang Longsheng Electric Co., Ltd. and is one of the earliest manufacturers of wall switches in China. The product quality is excellent, and it has always been in the forefront of market sales.
Article Summary: The above is a rotary switch on how to choose a good brand and what related presentations rotary switch, so that we hope to be able to choose good quality rotary switch. If you have other related needs, please pay attention to Qijia Information.
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