How to classify switches and sockets?

86 type switch

First, the classification of switch socket

1. There are 86 type, 120 type, 118 type, 146 type and 75 type according to panel type

86 type switch: The appearance of the most common switch socket is square, the external size is 86mm×86mm, and the center distance of the mounting hole is 60.3.

Switch socket and optional switch socket