SPECIFICATION CHART-INTERNATIONAL SIZES OF TRANSFORMER LAMINATION (E&I)
LAMINATION DIMENSION (mm)/(INCHES)
Type
UNIT
a
b
c
d
e
f
h
i
k1
k2
Remarks
EI 30 MM 30.00 20.00 15.00 10.00 20.00 5.00 0.00 0.00 0.00 0.00 without hole
INCH 1.181 0.787 0.591 0.394 0.787 0.197 0.000 0.000 0.000 0.000
EI 38 MM 38.40 25.60 19.20 12.80 25.60 6.40 0.00 0.00 0.00 0.00 without hole
INCH 1.512 1.008 0.756 0.504 1.008 0.252 0.000 0.000 0.000 0.000
EI 42 MM 42.00 28.00 21.00 14.00 28.00 7.00 3.50 35.00 3.50 24.50 4 hole
INCH 1.654 1.102 0.827 0.551 1.102 0.276 0.138 1.378 0.138 0.965
EI 48 MM 48.00 32.00 24.00 16.00 32.00 8.00 3.50 40.00 4.00 28.00 4 hole
INCH 1.890 1.260 0.945 0.630 1.260 0.315 0.138 1.575 0.157 1.102
EI 54 MM 54.00 36.00 27.00 18.00 36.00 9.00 3.50 45.00 4.50 31.50 4 hole
INCH 2.126 1.417 1.063 0.709 1.417 0.354 0.138 1.772 0.177 1.240
EI 60 MM 60.00 40.00 30.00 20.00 40.00 10.00 3.50 50.00 5.00 35.00 4 hole
INCH 2.362 1.575 1.181 0.787 1.575 0.394 0.138 1.969 0.197 1.378
EI 66 MM 66.00 44.00 33.00 22.00 44.00 11.00 4.50 55.00 5.50 38.50 4 hole
INCH 2.598 1.732 1.299 0.866 1.732 0.433 0.177 2.165 0.217 1.516
EI 75 MM 75.00 50.00 37.50 25.00 50.00 12.50 4.50 62.50 6.25 43.75 4 hole
INCH 2.953 1.969 1.476 0.984 1.969 0.492 0.177 2.461 0.246 1.722
EI 78 MM 78.00 52.00 39.00 26.00 52.00 13.00 4.50 65.00 6.50 45.50 4 hole
INCH 3.071 2.047 1.535 1.024 2.047 0.512 0.177 2.559 0.256 1.791
EI 84 MM 84.00 56.00 42.00 28.00 56.00 14.00 4.50 70.00 7.00 49.00 4 hole
INCH 3.307 2.205 1.654 1.102 2.205 0.551 0.177 2.756 0.276 1.929
EI 90 MM 90.00 60.00 45.00 30.00 60.00 15.00 4.50 75.00 7.50 52.50 4 hole
INCH 3.543 2.362 1.772 1.181 2.362 0.591 0.177 2.953 0.295 2.067
EI 96 MM 96.00 64.00 48.00 32.00 64.00 16.00 5.50 80.00 8.00 56.00 4 hole
INCH 3.780 2.520 1.890 1.260 2.520 0.630 0.217 3.150 0.315 2.205
EI 105 MM 105.00 70.00 52.50 35.00 70.00 17.50 5.50 87.50 8.75 61.25 4 hole
INCH 4.134 2.756 2.067 1.378 2.756 0.689 0.217 3.445 0.344 2.411
EI 108 MM 108.00 72.00 54.00 36.00 72.00 18.00 5.50 90.00 9.00 63.00 4 hole
INCH 4.252 2.835 2.126 1.417 2.835 0.709 0.217 3.543 0.354 2.480
EI 120 MM 120.00 80.00 60.00 40.00 80.00 20.00 7.00 100.00 10.00 70.00 4 hole
INCH 4.724 3.150 2.362 1.575 3.150 0.787 0.276 3.937 0.394 2.756
EI 126 MM 126.00 84.00 63.00 42.00 84.00 21.00 7.00 105.00 10.50 73.50 4 hole
INCH 4.961 3.307 2.480 1.654 3.307 0.827 0.276 4.134 0.413 2.894
EI 135 MM 135.00 90.00 67.50 45.00 90.00 22.50 7.50 112.50 11.25 78.75 4 hole
INCH 5.315 3.543 2.657 1.772 3.543 0.886 0.295 4.429 0.443 3.100
EI 150 N MM 150.00 100.00 75.00 50.00 100.00 25.00 8.00 125.00 12.50 87.50 4 hole
INCH 5.906 3.937 2.953 1.969 3.937 0.984 0.315 4.921 0.492 3.445
EI 174 MM 174.00 116.00 87.00 58.00 116.00 29.00 10.50 145.00 14.50 101.50 4 hole
INCH 6.850 4.567 3.425 2.283 4.567 1.142 0.413 5.709 0.571 3.996
EI 180 MM 180.00 120.00 90.00 60.00 120.00 30.00 10.00 150.00 15.00 105.00 4 hole
INCH 7.087 4.724 3.543 2.362 4.724 1.181 0.394 5.906 0.591 4.134
EI 192 MM 192.00 128.00 96.00 64.00 128.00 32.00 11.00 160.00 16.00 112.00 4 hole
INCH 7.559 5.039 3.780 2.520 5.039 1.260 0.433 6.299 0.630 4.409
EI 216 MM 216.00 144.00 108.00 72.00 144.00 36.00 11.50 180.00 18.00 126.00 4 hole
INCH 8.504 5.669 4.252 2.835 5.669 1.417 0.453 7.087 0.709 4.961
EI 240 MM 240.00 160.00 120.00 80.00 160.00 40.00 11.50 200.00 20.00 140.00 4 hole
INCH 9.449 6.299 4.724 3.150 6.299 1.575 0.453 7.874 0.787 5.512

 

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