1.Internatonal standard: IEC 2.Authoritative certificate:CCC, CE,EU, TUV & ROHS 3.Rated Voltage:660V,DC voltage 440V.

1.Application

LAY39-22 series button switch, adapted in AC 50HZ( or 60HZ), voltage is up to 660V and DC voltage is up to 440V, used for control, signals, reverse function in CNC machine tools, shipbuilding, textiles, printing, electrical and other equippments control circuit.

Implementation of standards:

GB14048.1-2006 Low-voltage switchgear and control equipment Part 1: General provisions.

GB14048.5-2008 Low-voltage switchgear and control equipment Part 5-1: Control circuit devices and Switching component-Electromechanical control circuit devices.

2.Structure type and means

Structure type

Button switch is modular structure, the contact is instantaneous type double breakpoints, installed by screw. Its structure parade by operate device, base board, contact system.

instate normally opencontact

instate normally contact volume

instate relative code(as table)

Code name	means	Code name	means
	General button	X	Role button
*	General symbol buttons	XB	Rotary button
D	With light button	XD	With light knob
Z	Self lock button	XF	Self reset role button
ZD	Self-locking with light button	XBF	Self reset rotary button
P	Level button	Y	Key button
PD	Flat button with light button	SW	Double-button
ZP	Self lock level button	M	Mushroom button
ZPD	Self-locking type flat button with light button	ZM	Self lock mushroom button
MJ	Mushroom rush button	MJL	Drawing button
XDA	Signal light	SD	Two-tone signal light
XDB	Signal light	M	Buzzer
XDB/k	Anti-interference type signal light	SM	Flash buzzer

3. Working condition

relative humidity is not exceeding 85% at the maximum ambient temperature +40.C . Should give consideration to the dews, which would appear due to temperature change.;

pollution grade: Grade 3

installation categories:class 2

Vibration condition: button switch should be installed at the place without significantly shaken,shock and vibration.

Protection grade before board is IP40, general button type after add gasket, protection grade can reach IP65.

4. Production line

 Raw materials testing  

Plastic shell processing

 

Coil winding processing

 

Magnet processing

 

Spring winding

 

 

Metal parts processing

 

 

Product assemble 

 

 

 

Product testing