1: Symbol used to indicate the type
LA, GQ, XB2, LAY3, Y090, AD16... The most common letters indicate the type of key switch, indicating different product categories, including plastic switches, metal keys, and signal indicators.
2: The parameter symbol indicating the color of the button
The colors here include the color of the lamp beads with lights and the color of the head of the buttons. The more common ones are R (red), green (G), white (W), black (N), blue (B), yellow (Y), and orange (O). It should be noted that black is generally distinguished from the blue B by the letter N.
3: Alphabetic symbols used to indicate the shape of the head
There are mainly the following head shapes: the most common round (Y), square (F), rectangular (J), mushroom head (M), spherical (S). The more special one is the doorbell type (M): see the product GQ16M-10 for details.
4: Alphabetic symbols indicating the shape of the keys
This is very common in metal key switches, and the common ones are flat round (F), high flat round (H), cabochon (C), and high cabochon (G). This notation is generally not commonly used. No special memory is required.
5: Symbols for operation mode
This is the most common, and it is also the key symbol that distinguishes various key switches and indicator lights. Here are some of the most common ones. Open operation (K), protection type (H), water release type/quick device type (S), explosion-proof type (B), rotary switch (X), key switch (Y), emergency stop switch (TS), self-locking Operation (Z), single-point lighted button (D), annular lighted button (E), window lighted button (DJ), rotary handle button (XB); double-position button (S). The symbols that can be seen here are the most and the most complex.
Such as the key material, caliber and a series of symbols.
Type Extra Voltage/V Extra Current/A Structure Number of Contact Pairs (Sub) Number of Buttons Button Color
Normally open Normally closed
LA2
Element 1 1 1 Black, Green, Red
LAl0-2K
Open 2 2 2 Black, Green, Red
LAl0-3K
Open 3 3 3 Black, Green, Red
LAl0-2H
Protection 2 2 2 Black, Green, Red
LAl0-3H
Protective 3 3 3 Red, Green, Red
LAl8-22J 500 5 elements (pressing type) 2 2 1 red
LAl8-44J
Component (Pressure) 4 4 1 Red
LAl8-66J
Component (Pressure) 6 6 1 Red
LAl8-22Y
Element (Key Type) 2 2 1 Natural Color
LAl8-44Y
Element (key type) 4 4 1 natural color
LAl8-22X
Element (Knob Type) 2 2 1 Black
LAl8-44X
Element (Knob Type) 4 4 1 Black
LAl8-66X
Element ( Knob ) 6 6 1 Black
LAl9 — 11J
Element (Pressure) 1 1 1 Red
LAl9 — 11D
Component (with indicator light) 1 1 1 red, green, yellow
blue, white
After explaining the symbols of the key indicator lights above, you will have a good understanding of the signal meaning of various key switches, for example: plastic key switch LAS1Y-11Y/2. Regarding this type, LAS1 is the type parameter symbol, the first Y indicates that the shape of the head is a circle, and the latter Y indicates that the operation mode is a key switch. 11 indicates the switch combination, so that you can easily understand the type of a button and its meaning
