1. Select by product type The 200 amp disconnect switch is an on/off switch that is often used for generators and water heaters. It is made up of a main switch and an auxiliary switch, which can be installed as a set. A product that is suitable for both single-phase and three-phase circuits can be chosen by checking the number of phases. There are two types of contacts: direct connection and plug-in. Direct connection is suitable for applications where you want to connect the circuit directly and plug-in is convenient for those who want to connect and disconnect multiple circuits. Choose the one that best suits your needs. 2. Select by operation method The 200 amp disconnect switch is used to turn the generator on and off. You can choose by checking the type of handle and whether it has a lever. The handle type can be opened and closed with your hands. If you want to use it in a place where there is a risk of electric shock, you should choose one that is easy to operate. The lever type can be turned on and off using the handle of the handle. It is an advantage that it is easy to operate and can be used even in places where the voltage is high. 3. Choose by material of contact The 200 amp disconnect switch is mainly used in power generation. It has a contact mechanism that switches the power on and off. It can be selected by checking whether the contact is made of silver, copper, etc. Silver has excellent conductivity and is suitable for places with a large power load. It is recommended for those who are worried about voltage drops and want to use it in places with large power loads. Copper has high conductivity and is suitable for places with large power loads. It is recommended for those who are worried about voltage drops and want to use it in places with large power loads. Why shop on AliExpress 1.Lower Price: Aliexpress always provides customers with quality products at reasonable prices. In addition to low prices, there are always bonus activities such as discounts and coupons, so you can buy your favorite 200 amp disconnect switch related items without hesitation. 2.Various types: There are always a wide variety of items related to the popular 200 amp disconnect switch with Aliexpress, you don't have to worry about not finding the goods that interest you. 3.Full service: Aliexpress operators will patiently and thoroughly answer your questions before purchasing. And for after-sales service, any problem can be solved early. Delivery services are also mostly free or next day delivery. See more details about 200 amp disconnect switch in AliExpress Video Page.