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  • LW28 Change over switch
  • LW28 Change over switch
Switches

LW28 Change over switch

Scope

LW28 Series Universal changeover switch mainly used for AC 50Hz, rated voltage up to 380V and below, DC voltage up to 220V, rated current to 160A electrical circuit for manually infrequent making or breaking the circuit for the purposes of control and conversion .can also controlling three -phase asynchronous motors and circuit directly as the purposes of master control and measurement. The products widely used, instead of the various national switch, can be used as the circuit control switch, measuring equipment switches, motor control switches and the master control switch, and welding machine switch and so on, Compliance with standards: The changeover switch use to the main circuit switching and direct control comply with GB14048.3-2001, IEC60947-3. The changeover switch use to master control comply with GB14048.5-2001

Normal Working Conditions

1. The ambient air temperature does not exceed +40*C, the average temperature within 24 hours and not more than +35"C.

2. The ambient air temperature is not lower than -5"C.

3. Installation site altitude does not exceed 2000m.

4. The relative humidity of the air no more than 50% when the maximum temperature is +40*C and at a lower temperature allows a higher relative humidity, such as when temperature is 20"C the relative humidity reach 90%. To condensation occasionally due to temperature changes should take special measures.


Technical Parameters

TypeIth
A
Ui
V
Ue
V
AC-21AAC-22AAC-23AAC-2AC-3AC-4AC-15DC-13
le
A
le
A
le
A
P
kw
le
A
P
kw
le
A
P
kw
le
A
P
kw
le
A

LW28-1010660240
107.51.87.52.55.51.51.750.372.5
440
107.537.53.75.52.21.750.551.5
LW28-20204402020157.5157.5115.53.51.54
240









51
120










5
LW28-2525440252522112211157.56.535
240









81.5
120










9
LW28-32324403232301530152211115.56
240









1411
120










25
LW28-63634406363573057303618.5 157.5

120










55
LW28-1251254401251259045904575303012
90
LW28-160160440160160135751355595375515
110
Operating
 cycles
No load8500Electrical life(times)
With load1500Mechanical life(times)
Total100060*10000


ModelPanel SpecificabonDimensions(mm) ModelPanel SpecificationDimensions(mm) 
ABCLABCL
LW28-10M0 Square30302822+8nLW28-32M2 Square64645829.2+12.8n
LW28-20M1 Square48484322+9.6nM2 Rectangle64805829.2+12.8n
M2 Square64644325+9.6nM3 Square88885829.2+12.8n
M2 Rectangle64804325*9.6nLW28-63M2 Square64646629.2+21.5n
LW28-20CM2 Square64646042.5+12.6nM2 Square64806629.2+21.5n
M2 Rectangle64806042.5+12.6nM3 Square88886629.2+21.5n
M3 Square88886042.5+12.6nLW28-125M3 Square88888435+26.5n
LW28-25M1 Square484845.2 23+12.8nLW28-160M3 Square88888835+32.5n
M1 Rectangle486045.2 23+12.8nLW28-315M4 Square13013012639.5+38.5n
M2 Square646445.2 23+12.8n





M2 Rectangle648045.2 26.5+12.8n





image.png


Dimensional drawing

LW28尺寸图.jpg

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