i
ii
TECHNICAL DATA (Cont’d)
EI-2.40 3� Exciting RMS Volt-Amp./Lb.vs. Induction . . . . . . . . . . . . . . . . . . . 40
EI-3.60 3� Core Loss vs. Induction-Watts/Lb. . . . . . . . . . . . . . . . . . . . . . . 41
EI-3.60 3� Exciting RMS Volt-Amp./Lb.vs. Induction . . . . . . . . . . . . . . . . . . . 42
SINGLE PHASE LAMINATIONSEE — 24-25 . . . . . . . . . . . . . . . . . . . . . . 43EE — 26-27 . . . . . . . . . . . . . . . . . . . . . . 44EI — 3⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 45EI — 3⁄8H (Low Profile) . . . . . . . . . . . . . . 46EI — 1⁄2H . . . . . . . . . . . . . . . . . . . . . . . . 47EI — 1⁄2L . . . . . . . . . . . . . . . . . . . . . . . . 48EI — 1⁄2H (Low Profile) . . . . . . . . . . . . . . 49EI — 5⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 50EI — 5⁄8HW (Wide Window) . . . . . . . . . . 51UI — 5⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 104Cruciform TO-5⁄8 (Ferro-Resonant) . . . . 125EI — 5⁄8LW (Ferro-Resonant) . . . . . . . . . 52EI — 5⁄8H (Low Profile) . . . . . . . . . . . . . . 53EI — 3⁄4H . . . . . . . . . . . . . . . . . . . . . . . . 54EI — 3⁄4H (Low Profile) . . . . . . . . . . . . . . 55EI — 7⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 56EI — 7⁄8MH . . . . . . . . . . . . . . . . . . . . . . . 57EI — 7⁄8HW (Wide Window) . . . . . . . . . . 58EI — 7⁄8H (Low Profile) . . . . . . . . . . . . . . 59EI — 15⁄16H . . . . . . . . . . . . . . . . . . . . . . . 60EI — 1H . . . . . . . . . . . . . . . . . . . . . . . . . 61EI — 1MH . . . . . . . . . . . . . . . . . . . . . . . 62EI — 1HX . . . . . . . . . . . . . . . . . . . . . . . . 63EI — 1H (Low Profile) . . . . . . . . . . . . . . 64UI — 1MH . . . . . . . . . . . . . . . . . . . . . . . 105Cruciform TO-1 (Ferro-Resonant) . . . . 126EI — 11⁄16LW (Ferro-Resonant) . . . . . . . 65EI — 11⁄8H . . . . . . . . . . . . . . . . . . . . . . . 66EI — 11⁄8MH . . . . . . . . . . . . . . . . . . . . . . 67EI — 11⁄8HW (Wide Window) . . . . . . . . . 68EI — 11⁄4H . . . . . . . . . . . . . . . . . . . . . . . 69EI — 11⁄4MH . . . . . . . . . . . . . . . . . . . . . . 70EI — 11⁄4(2)HLW (Ferro-Resonant) . . . . 71EI — 11⁄4(2)HLC (Ferro-Resonant) . . . . 72Cruciform TO-11⁄4 (Ferro-Resonant) . . . 127EI — 13⁄8H . . . . . . . . . . . . . . . . . . . . . . . 73EI — 13⁄8MH . . . . . . . . . . . . . . . . . . . . . . 74EI — 13⁄8HW (Wide Window) . . . . . . . . . 75EI — 13⁄8HXW (Ferro-Resonant) . . . . . . 76
iii
SINGLE PHASE LAMINATIONS (Cont’d)
EI — 13⁄8LW (Ferro-Resonant) . . . . . . . . 77EI — 13⁄8(2)HLC (Ferro-Resonant) . . . . 78Cruciform TO-13⁄8 (Ferro-Resonant) . . . 128EI — 11⁄2H . . . . . . . . . . . . . . . . . . . . . . . 79EI — 11⁄2MH . . . . . . . . . . . . . . . . . . . . . . 80EI — 15⁄8H . . . . . . . . . . . . . . . . . . . . . . . 81EI — 15⁄8(2)HLW (Ferro-Resonant) . . . . 82EI — 15⁄8(2)HLC (Ferro-Resonant) . . . . 83EI — 13⁄4H . . . . . . . . . . . . . . . . . . . . . . . 84EI — 13⁄4(3)MH . . . . . . . . . . . . . . . . . . . 85EI — 13⁄4(3)HLW (Ferro-Resonant) . . . . 86EI — 1.80HW (Ferro-Resonant) . . . . . . 87EI — 1.80MHC . . . . . . . . . . . . . . . . . . . . 88UI — 1.80H . . . . . . . . . . . . . . . . . . . . . . 106UI — 1.80MH . . . . . . . . . . . . . . . . . . . . . 107UI — 1.80MHW . . . . . . . . . . . . . . . . . . . 108EI — 2(3)HW (Ferro-Resonant) . . . . . . . 89EI — 2MH . . . . . . . . . . . . . . . . . . . . . . . 90EI — 21⁄8(3)HLW (Ferro-Resonant) . . . . 91EI — 21⁄8(3) HLC (Ferro-Resonant) . . . . 92EI — 21⁄8H . . . . . . . . . . . . . . . . . . . . . . . 93EI — 21⁄4 Short . . . . . . . . . . . . . . . . . . . . 94EI — 21⁄4(3)MH . . . . . . . . . . . . . . . . . . . 95UI — 2.40H . . . . . . . . . . . . . . . . . . . . . . 109UI — 2.40MH . . . . . . . . . . . . . . . . . . . . . 110UI — 2.40MHW . . . . . . . . . . . . . . . . . . . 111EI — 21⁄4MHC . . . . . . . . . . . . . . . . . . . . 96EI — 21⁄2(3)MH . . . . . . . . . . . . . . . . . . . 97EI — 21⁄2HW (Wide Window) . . . . . . . . . 98EI — 25⁄8(3)HLW (Ferro-Resonant) . . . . 99EI — 3(3)MH . . . . . . . . . . . . . . . . . . . . . 100EI — 3H . . . . . . . . . . . . . . . . . . . . . . . . . 101EI — 4(3)MH . . . . . . . . . . . . . . . . . . . . . 102EI — 5(3)MH . . . . . . . . . . . . . . . . . . . . . 103
U-I DESIGNSUI — 5⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 104UI — 1MH . . . . . . . . . . . . . . . . . . . . . . . 105UI — 1.80H . . . . . . . . . . . . . . . . . . . . . . 106UI — 1.80MH . . . . . . . . . . . . . . . . . . . . . 107UI — 1.80MHW (Wide Window) . . . . . . 108UI — 2.40H . . . . . . . . . . . . . . . . . . . . . . 109UI — 2.40MH . . . . . . . . . . . . . . . . . . . . . 110UI — 2.40MHW (Wide Window) . . . . . . 111
iv
THREE PHASE LAMINATIONSEI — 1⁄4 3� . . . . . . . . . . . . . . . . . . . . . . . 112EI — 3⁄8 3� . . . . . . . . . . . . . . . . . . . . . . . 113EI — 1⁄2 3� . . . . . . . . . . . . . . . . . . . . . . . 114EI — 1⁄2L 3� . . . . . . . . . . . . . . . . . . . . . . 115EI — 9⁄16 3� . . . . . . . . . . . . . . . . . . . . . . 116EI — 5⁄8 3� . . . . . . . . . . . . . . . . . . . . . . . 117EI — 7⁄8 3� . . . . . . . . . . . . . . . . . . . . . . . 118EI — 1.00 3� . . . . . . . . . . . . . . . . . . . . . 119EI — 1.20 3� . . . . . . . . . . . . . . . . . . . . . 120EI — 1.50 3� . . . . . . . . . . . . . . . . . . . . . 121EI — 1.80 3� . . . . . . . . . . . . . . . . . . . . . 122EI — 2.40 3� . . . . . . . . . . . . . . . . . . . . . 123EI — 3.60 3� . . . . . . . . . . . . . . . . . . . . . 124
FERRO-RESONANT/CRUCIFORM LAMINATIONSEI — 5⁄8LW (16mm) . . . . . . . . . . . . . . . . 52EI — 11⁄16LW (27 mm) . . . . . . . . . . . . . . 65EI — 11⁄4(2)HLW (32 mm) . . . . . . . . . . . 71EI — 13⁄8HXW (35mm) . . . . . . . . . . . . . . 76EI — 13⁄8LW (35mm) . . . . . . . . . . . . . . . 77EI — 15⁄8(2)HLW (41 mm) . . . . . . . . . . . 82EI — 13⁄4(3)HLW (44 mm) . . . . . . . . . . . 86EI — 1.80HW . . . . . . . . . . . . . . . . . . . . . 87EI — 2(3)HW (51 mm) . . . . . . . . . . . . . . 89EI — 25⁄8(3)HLW (64 mm) . . . . . . . . . . . 99Cruciform TO-5⁄8 (16 mm) . . . . . . . . . . . 125Cruciform TO-1 (25 mm) . . . . . . . . . . . 126Cruciform TO-11⁄4 (32 mm) . . . . . . . . . . 127Cruciform TO-13⁄8 (35 mm) . . . . . . . . . . 128
FERRO-RESONANT WITHBUILT-IN CENTER LEG AIR-GAPEI — 11⁄4(2)HLC . . . . . . . . . . . . . . . . . . . 72EI — 13⁄8(2)HLC . . . . . . . . . . . . . . . . . . . 78EI — 15⁄8(2)HLC . . . . . . . . . . . . . . . . . . . 83EI — 21⁄8(3)HLC . . . . . . . . . . . . . . . . . . . 92
LOW PROFILE LAMINATIONSEI — 3⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 46EI — 1⁄2H . . . . . . . . . . . . . . . . . . . . . . . . 49EI — 5⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 53EI — 3⁄4H . . . . . . . . . . . . . . . . . . . . . . . . 55EI — 3⁄8H . . . . . . . . . . . . . . . . . . . . . . . . 59EI — 1H . . . . . . . . . . . . . . . . . . . . . . . . . 64
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42
43
Sing
le-P
hase
44
Sing
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hase
45
Sing
le-P
hase
46
Sing
le-P
hase
THICKNESS LAMINATION WEIGHTS
in. mm. lb./1 K Kg./1 K EI’s/lb. EI‘s/kg
0.0185 0.47
0.014 0.35 6.29918 2.857245056 158.7508215 349.9874811
0.011 0.28 4.9468045 2.243821053 202.1507015 445.6683382
0.009 0.23 4.0473855 1.835853589 247.0730796 544.7057467
.007 0.18
.006 0.15
.004 0.10
VOLUME WEIGHT WINDOW AREA
cu. in. cu. cm. lbs. grams sq. in. sq. cm.
0.6088125 9.976671319 0.168641063 76.49389954 0.467064 3.013310102
1.871(47.6)
.187(4.75)
.094(2.38)
.094(2.38)
1.684(42.77)
.687(17.45)
.187(4.75)
.312(7.93)
.375(8.82)
.312(7.93)
.187(4.75)
1.497(38.02)
.094 Dia.(2.38)
(2 Places)
1.375(34.93)
SINGLE PHASE EI—3⁄8H(10mm) LOW PROFILE
CHARACTERISTICS OF CORE STACKHAVING SQUARE CENTER
MAGNETIC PATH DIMENSIONS ANDDESIGN FORMULAS
Area = 0.140625 in.2 = 0.90725625 cm.2
47
Sing
le-P
hase
48
Sing
le-P
hase
49
Sing
le-P
hase
THICKNESS LAMINATION WEIGHTS
in. mm. lb./1 K Kg./1 K EI’s/lb. EI‘s/kg
0.0185 0.47
0.014 0.35 9.3469588 4.239687042 106.9866704 235.8664661
0.011 0.28 7.3402535 3.329465585 136.2350769 300.3485017
0.009 0.23 6.0056619 2.724108181 166.5095399 367.0926165
.007 0.18
.006 0.15
.004 0.10
VOLUME WEIGHT WINDOW AREA
cu. in. cu. cm. lbs. grams sq. in. sq. cm.
1.204505 19.73834389 0.333647885 151.3393442 0.505752 3.262909603
2.121(53.87)
.250(6.35)
.125(3.18)
.125(3.18)
1.871(47.6)
.812(20.63)
.250(6.35)
.312(8.51)
.500(12.7)
.312(8.51)
.250(6.35)
1.621(41.17)
.125 Dia.(3.18)
(2 Places)
1.625(41.28)
SINGLE PHASE EI—1⁄2H(13mm) LOW PROFILE
CHARACTERISTICS OF CORE STACKHAVING SQUARE CENTER
MAGNETIC PATH DIMENSIONS ANDDESIGN FORMULAS
Area = 0.25 in.2 = 1.6129 cm.2
50
Sing
le-P
hase
51
Sing
le-P
hase
52
Sing
le-P
hase
53
Sing
le-P
hase
THICKNESS LAMINATION WEIGHTS
in. mm. lb./1 K Kg./1 K EI’s/lb. EI‘s/kg
0.0185 0.47
0.014 0.35 13.52568 6.135113191 73.93343625 162.9961777
0.011 0.28 10.621842 4.817961313 94.14562936 207.5566687
0.009 0.23 8.690598 3.941968347 115.0668803 253.6803729
.007 0.18
.006 0.15
.004 0.10
VOLUME WEIGHT WINDOW AREA
cu. in. cu. cm. lbs. grams sq. in. sq. cm.
2.17875 35.70339413 0.60351375 273.7478019 0.583752 3.766134403
2.495(63.37)
.312(7.93)
.156(3.96)
.156(3.96)
1.871(47.52)
.937(23.8)
.312(7.93)
.312(7.93)
.625(15.88)
.312(7.93)
.312(7.93)
1.871(47.52)
.125 Dia.(3.18)
(2 Places)
1.875(47.63)
SINGLE PHASE EI—5⁄8H(16mm) LOW PROFILE
Sing
le-P
hase
CHARACTERISTICS OF CORE STACKHAVING SQUARE CENTER
MAGNETIC PATH DIMENSIONS ANDDESIGN FORMULAS
Area = 0.390625 in.2 = 2.52015625 cm.2
54
Sing
le-P
hase
55
Sing
le-P
hase
THICKNESS LAMINATION WEIGHTS
in. mm. lb./1 K Kg./1 K EI’s/lb. EI‘s/kg
0.0185 0.47
0.014 0.35 19.477212 8.834668591 51.34205039 113.1904372
0.011 0.28 15.295635 6.93794708 65.37812912 144.1348555
0.009 0.23 12.514611 5.676502403 79.90659877 176.1648157
.007 0.18
.006 0.15
.004 0.10
VOLUME WEIGHT WINDOW AREA
cu. in. cu. cm. lbs. grams sq. in. sq. cm.
3.764925 61.69620247 1.042884225 473.0418556 0.842625 5.43627945
2.997(76.12)
.375(9.53)
.187(4.75)
.187(4.75)
2.622(66.60)
1.125(28.58)
.375(9.53)
.375(9.53)
.750(19.05)
.375(9.53)
.375(9.53)
2.247(57.07)
.156 Dia.(3.96)
(2 Places)
2.250(57.15)
SINGLE PHASE EI—3⁄4H(19mm) LOW PROFILE
CHARACTERISTICS OF CORE STACKHAVING SQUARE CENTER
MAGNETIC PATH DIMENSIONS ANDDESIGN FORMULAS
Area = 0.5625 in.2 = 3.629025 cm.2
56
Sing
le-P
hase
57
Sing
le-P
hase
58
Sing
le-P
hase
59
Sing
le-P
hase
THICKNESS LAMINATION WEIGHTS
in. mm. lb./1 K Kg./1 K EI’s/lb. EI‘s/kg
0.0185 0.47
0.014 0.35 26.41182 11.98013743 37.8618361 83.47149651
0.011 0.28 20.741447 9.408112945 48.21264399 106.291241
0.009 0.23 16.970275 7.697547037 58.92656424 129.9115153
.007 0.18
.006 0.15
.004 0.10
VOLUME WEIGHT WINDOW AREA
cu. in. cu. cm. lbs. grams sq. in. sq. cm.
5.95627375 97.60605357 1.649887829 748.3726202 1.145377 7.389514253
3.495(88.77)
.437(11.1)
.218(5.54)
.218(5.54)
2.621(66.57)
.437(11.1)
.437(11.1)
.875(22.23)
.437(11.1)
2.621(66.57)
.156 Dia.(3.96)
(2 Places)
2.187(55.55)
2.625(66.68)
2.625(66.68)
SINGLE PHASE EI—7⁄8H(22mm) LOW PROFILE
Sing
le-P
hase
CHARACTERISTICS OF CORE STACKHAVING SQUARE CENTER
MAGNETIC PATH DIMENSIONS ANDDESIGN FORMULAS
Area = 0.765625 in.2 = 4.93950625 cm.2
60
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hase
61
Sing
le-P
hase
62
Sing
le-P
hase
63
Sing
le-P
hase
64
Sing
le-P
hase
THICKNESS LAMINATION WEIGHTS
in. mm. lb./1 K Kg./1 K EI’s/lb. EI‘s/kg
0.0185 0.47
0.014 0.35 33.952134 15.40034846 29.45322966 64.93359566
0.011 0.28 26.662926 12.0940366 37.50526105 82.68537898
0.009 0.23 21.815121 9.895120734 45.83976408 101.0599089
.007 0.18
.006 0.15
.004 0.10
VOLUME WEIGHT WINDOW AREA
cu. in. cu. cm. lbs. grams sq. in. sq. cm.
8.75055 143.3961379 2.42390235 1099.457867 1.4985 9.6677226
3.997(101.52)
.500(12.7)
.250(6.35)
.250(6.35)
3.497(88.82)
.500(12.7)
.500(12.7)
1.000(25.4)
.500(12.7)
3.497(88.82)
.218 Dia.(5.54)
(2 Places)
2.500(63.5)
3.000(76.2)
3.000(76.2)
SINGLE PHASE EI—1H(25mm) LOW PROFILE
Sing
le-P
hase
CHARACTERISTICS OF CORE STACKHAVING SQUARE CENTER
MAGNETIC PATH DIMENSIONS ANDDESIGN FORMULAS
Area = 1 in.2 = 6.4516 cm.2
65
Sing
le-P
hase
66
Sing
le-P
hase
67
Sing
le-P
hase
68
Sing
le-P
hase
69
Sing
le-P
hase
70
Sing
le-P
hase
71
Sing
le-P
hase
72
Sing
le-P
hase
73
Sing
le-P
hase
74
Sing
le-P
hase
75
Sing
le-P
hase
76
Sing
le-P
hase
77
Sing
le-P
hase
78
Sing
le-P
hase
79
Sing
le-P
hase
80
Sing
le-P
hase
81
Sing
le-P
hase
82
Sing
le-P
hase
83
Sing
le-P
hase
84
Sing
le-P
hase
85
Sing
le-P
hase
86
Sing
le-P
hase
87
Sing
le-P
hase
88
Sing
le-P
hase
89
Sing
le-P
hase
90
Sing
le-P
hase
91
Sing
le-P
hase
92
Sing
le-P
hase
93
Sing
le-P
hase
Sing
le-P
hase
94
95
Sing
le-P
hase
Sing
le-P
hase
96
97
Sing
le-P
hase
98
Sing
le-P
hase
99
Sing
le-P
hase
Sing
le-P
hase
100
101
Sing
le-P
hase
102
Sing
le-P
hase
103
Sing
le-P
hase
104
UI’s
UI’s
105
106
UI’s
107
UI’s
108
UI’s
109
UI’s
110
UI’s
111
UI’s
112
Thre
e-Ph
ase
113
Thre
e-Ph
ase
114
Thre
e-Ph
ase
115
Thre
e-Ph
ase
116
Thre
e-Ph
ase
117
Thre
e-Ph
ase
118
Thre
e-Ph
ase
119
Thre
e-Ph
ase
120
Thre
e-Ph
ase
121
Thre
e-Ph
ase
122
Thre
e-Ph
ase
123
Thre
e-Ph
ase
124
Thre
e-Ph
ase
125
Cruc
form
s
126
Cruc
form
s
127
Cruc
form
s
128
Cruc
form
s
129
Corporate Offices
1120 East 23rd St.Indianapolis, IN 46205
P.O. Box 150Indianapolis, IN 46206Phone: 317/923-2501
Fax: 317/923-5919Alnico Fax: 317/924-4826
Transformer Lamination Servicenters
Eastern Region Western Region16 Law Drive 1550 S. Sunkist St., Suite G
Fairfield, NJ 07004 Anaheim, CA 92806Phone: 973/227-4222 Phone: 714/634-3880
Fax: 973/227-6735 Fax: 714/634-3885
Other Manufacturing LocationsSintered Alnico
Osgood Grinding
Western AvenueOsgood, IN 47037
Phone: 812/689-4811
Electro-Magnetic Ferrite Subsidiary
Ceramic Magnetics, Inc.16 Law Drive
Fairfield, NJ 07004Phone: 973/227-4222
Fax: 973/227/6735
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