How to choose suitable key switch?

Key switch is a switch that we often see in our daily lives. This switch is mainly used to provide protection for some industries (elevators, security, electromechanical equipment, medical equipment). Also known as power key switches that require power supply.

WELFNOBL have been specializing in the production of key switches for over ten years, with reliable quality and highly competitive prices. We support customization and have received widespread praise from customers.

And how to choose suitable key switch?

1. According to the current and voltage used, it can be divided into low-voltage key switches (such as 4A, 2A and below) and high-voltage key switches (10A, 16A and above).

2. Different mounting size, for key switch, we have 12mm, 16mm, 19mm, 22mm. These sizes are quite commonly used. The size must be selected correctly, otherwise the switch cannot be installed. If you need, we can provide you the drawing for your choose.

3. Number of position, we have 2 or 3 position key switch, it depends on how many sets of lines do you want to use it to control. At the same time, for key, we also have the option of single or double removable.

4. Function, the switch is divided into momentary or latching type. 

Momentary: When you rotate the key and then move your finger, the actuator will back to the original position.
Latching: When you rotate the key, it will be ON and keeps locked until you press again, it will return to original position.