Rotary Cam Switches Manufacturer Since 1981

The LW31 series cam switch is mainly used for kitting electric appliance switch cabinets, 3-phase asynchronous motors, and switching between main and auxiliary circuits. It is an ideal replacement for other rotary switches, and this series features an on/off and changeover function according to specific application cases.

Technical parameter

Type specification	LW31-20	LW31-25	LW31-32	LW31-50	LW31-75
Conventional thermal current Ith A	20	25	32	50	75
Rated working voltage Ue V	110220440	110220440500690	110220440500690	110220440500690	110220440500690
Rated working current Ie
AC-21A A	20	25	32	50	75
AC-22A A	16	20	32	40	63
DC-20 A	20	25	32	50	75
Rated control power
AC-23A kW	5 7.5	7.5 11 15	11 18.5 22	15 22 30	18.5 30 37
AC-3 kW	4 5.5	5.5 7.5 11	7.5 15 18.5	11 18.5 22	15 22 30
AC-4 kW	2.2 3	2.2 4	3 5.5	5.5 7.5 9	7.5 11 15
DC-23 kW	0.77 1.2	2 2.2	2 2.2	3 6	4 8

Shown here are welder switches with different currents. Please do not hesitate to contact us about customization or more information.

LW31-20 0-1 2P

Rated working current: 20A
Panel: 54*54mm
Diagram code: 0-1 2P
Color: White
Handle: R type
IP rating: IP20

Parameter

Specification	LW31-20
Rated thermal current Ith A	20
Rated working voltage Ue V	110	220	440
Rated working current Ie
AC-21A A			20
AC-22A A			16
DC-20 A		20
Power
AC-23A kW		5	7.5
AC-3 kW		4	5.5
AC-4 kW		2.2	3
DC-23 kW	0.77	1.2

LW31-32 0-1 3P

Rated working current: 32A
Panel: 72*72mm
Diagram code: 0-1 3P
Color: White
Handle: R type
IP rating: IP20

Parameter

Specification	LW31-32
Rated thermal current Ith A	32
Rated working voltage Ue V	110	220	440	500	690
Rated working current Ie					32
AC-21A A					32
AC-22A A		32
DC-20 A
Power
AC-23A kW		11	18.5		22
AC-3 kW		7.5	15		18.5
AC-4 kW		3	5.5	5.5
DC-23 kW	2	2.2

LW31-75 0-1 4P

Rated working current: 75A
Panel: 105*105mm
Diagram code: 0-1 4P
Color: White
Handle: R type
IP rating: IP20

Parameter

Specification	LW31-75
Rated thermal current Ith A	75
Rated working voltage Ue V	110	220	440	500	690
Rated working current Ie					75
AC-21A A					63
AC-22A A		75
DC-20 A
Power
AC-23A kW		18.5	30		37
AC-3 kW		15	22		30
AC-4 kW		7.5	11	15
DC-23 kW	4	8

LW31-75 1-0-2 2P

Rated working current: 75A
Panel: 105*105mm
Diagram code: 1-0-2 2P
Color: White
Handle: R type
IP rating: IP20

Parameter

Specification	LW31-75
Rated thermal current Ith A	75
Rated working voltage Ue V	110	220	440	500	690
Rated working current Ie					75
AC-21A A					63
AC-22A A		75
DC-20 A
Power
AC-23A kW		18.5	30		37
AC-3 kW		15	22		30
AC-4 kW		7.5	11	15
DC-23 kW	4	8