KDHC electric welding machine switch applied to AC 50Hz&60Hz 440V and below200A and Below for control of welding machine and control of main circuits as well.
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Description
working conditions
Ambienttemperature DONOTexceed40℃, and DO NOT Less than -25℃, and theaverage temperature, measured over a period of 24 hours, DO NOT exceed 35℃
Should not be installed over 2000m about sea level.
The switch should not change the circuit when the switch is working with load.
The humidity should not exceed 50% when the ambient temperature is 40℃, and higherhumidity is allowed for lower temperature.
A clean environment was required. Dimensions and installation Designation CIas sifi cation
Classified by current ratings: 20A,25A,32A,40A,63A
Classified by handle position, there are 12 handle positions.
Classified by type of handle, R type, l type, B typ
R type I type B type
Technical parameters
Description
KDHC-20
KDHC-25
KDHC-32
KDHC-40
KDHC-63
Rated thermal current Ith A
20
25
32
40
63
Ratedworking voltage ue V
240/440
240/440
240/440
240/440
240/440
Rated working cu rent le
AC-21A A
20
25
32
40
63
operation
Non-load
8500
8500
8500
8500
8500
Load
1500
1500
1500
1500
1500
Total
10000
10000
10000
10000
10000
operation frequency times/h
1 20
1 20
1 20
1 20
1 20
Dimensions and installation
Description
Lmax
Imax
A
E
F
G
G1
G2
KDHC-20
25+1 2n
38
口48 士0.31
32 ± 0. 16
口36 ±0.31
3.5
4.5
KDHC-25
34+ 13.3n
37
口64±0.37
36 士0.31
口48 ±0.31
4.5
4.5
KDHC-32
34+ 13.3n
37
口64±0.37
36 ±0.31
口48 ±0.31
4.5
4.5
KDHC-40
34+ 1 7.5n
37
口64±0.37
36 士0.31
口48 士0.31
4.5
4.5
KDHC-63
34+ 1 7.5n
37
口64±0.37
36 ±0.31
口48 ±0.31
4.5
4.5
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