2 Gang and 3 Pin Socket

Pay attention to the structural process.

Try to make sure that the spring force of the switch is moderate, and the position of the opening and closing panel changes greatly, so that the switch button will not stop at a certain position in the middle and affect the function.

1. Surface technology: good products have smooth surface, uniform color, texture, clear and full brand logo.

The screw pressing wire mode is relatively tight, which is suitable for parallel connection of multiple wires with different wire diameters. Electricians are quite used to it. It is a traditional wiring mode, which is used by most manufacturers. However, the brand products have taken some improvement on how to increase the contact area between Screws and wires and reduce the damage of wires. The copper screw head is of circular arc design with anti screw falling structure.

The fast wiring mode mainly uses the combination of multiple spring plates to press the line, which is characterized by fast construction speed, not afraid of line rotation, and the multiple lines are difficult to parallel.

Nailboard crimping mode is a new wiring mode after 2006. The main function of wiring is basically the same as that of small circuit breaker, but it occupies a large space in the back seat.

Switch, as the name implies, is a kind of appliance with opening and closing functions. Therefore, the quality of this kind of switch is difficult to be guaranteed. We suggest that you buy less.

The switch of pure silver contact is prone to pull arc when turning on or off large current load, the surface of contact will be burned by arc, and pure silver itself is easy to oxidize. There are three kinds of silver alloys: Silver lithium alloy, silver cadmium alloy and silver nickel alloy. Silver nickel alloy has the best comprehensive properties such as conductivity, wear resistance and arc reduction, followed by silver lithium alloy and silver cadmium alloy, but cadmium is a heavy metal, which is toxic to human body and environment. Material is to see the contact material.

Contact point is the contact point of conductive parts in the process of switching.