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Technical

NEMA FRAME DIMENSIONS
Foot-Mounted AC Machines

 Go To Frames 500 - 6085

mfg - manufacturers' specifications vary

FRAME D E 2F H U BA N-W V MIN. KEYSEAT
R ES MIN. S
48 3 2.12 2.75 .34 .5 2.5 1.5 - .453 - Flat
56 3.5 2.44 3 .34 .625 2.75 1.88 - .517 1.41 .188
143 3.5 2.75 4 .34 .75 2.25 2 1.75 .643 1.41 .188
143T 3.5 2.75 4 .34 .875 2.25 2.25 2 .771 1.41 .188
145 3.5 2.75 5 .34 .75 2.25 2 1.75 .643 1.41 .188
145T 3.5 2.75 5 .34 .875 2.25 2.25 2 .771 1.41 .188
182 4.5 3.75 4.5 .41 .875 2.75 2.25 2 .771 1.41 .188
182T 4.5 3.75 4.5 .41 1.125 2.75 2.75 2.5 .986 1.78 .25
184 4.5 3.75 5.5 .41 .875 2.75 2.25 2 .771 1.41 .188
184T 4.5 3.75 5.5 .41 1.125 2.75 2.75 2.5 .986 1.78 .25
203 5 4 5.5 .41 .75 3.12 2.25 2 .643 1.53 .188
204 5 4 6.5 .41 .75 3.12 2.25 2 .643 1.53 .188
213 5.25 4.25 5.5 .41 1.125 3.5 3 2.75 .986 2.03 .25
213T 5.25 4.25 5.5 .41 1.375 3.5 3.38 3.12 1.201 2.41 .312
215 5.25 4.25 7 .41 1.125 3.5 3 2.75 .986 2.03 .25
215T 5.25 4.25 7 .41 1.375 3.5 3.38 3.12 1.201 2.41 .312
224 5.5 4.5 6.75 .41 1 3.5 3 2.75 .857 2.03 .25
225 5.5 4.5 7.5 .41 1 3.5 3 2.75 .857 2.03 .25
254 6.25 5 8.25 .53 1.125 4.25 3.37 3.12 .986 2.03 .25
254U 6.25 5 8.25 .53 1.375 4.25 3.75 3.5 1.201 2.78 .312
254T 6.25 5 8.25 .53 1.625 4.25 4 3.75 1.416 2.91 .375
256U 6.25 5 10 .53 1.375 4.25 3.75 3.5 1.201 2.78 .312
256T 6.25 5 10 .53 1.625 4.25 4 3.75 1.416 2.91 .375
284 7 5.5 9.5 .53 1.25 4.75 3.75 3.5 .986 2.03 .25
284U 7 5.5 9.5 .53 1.625 4.75 4.88 4.62 1.416 3.78 .375
284T 7 5.5 9.5 .53 1.875 4.75 4.62 4.38 1.591 3.28 .5
284TS 7 5.5 9.5 .53 1.625 4.75 3.25 3 1.416 1.91 .375
286U 7 5.5 11 .53 1.625 4.75 4.88 4.62 1.416 3.78 .375
286T 7 5.5 11 .53 1.875 4.75 4.62 4.38 1.591 3.28 .5
286TS 7 5.5 11 .53 1.625 4.75 3.25 3 1.416 1.91 3.75
324 8 6.25 10.5 .66 1.625 5.25 4.87 4.62 1.416 3.78 .375
324U 8 6.25 10.5 .66 1.875 5.25 5.62 5.38 1.591 4.28 .5
324S 8 6.25 10.5 .66 1.625 5.25 3.25 3 1.416 1.91 .375
324T 8 6.25 10.5 .66 2.125 5.25 5.25 5 1.845 3.91 .5
324TS 8 6.25 10.5 .66 1.875 5.25 3.75 3.5 1.591 2.03 .5
326 8 6.25 12 .66 1.625 5.25 4.87 4.62 1.416 3.78 .375
326U 8 6.25 12 .66 1.875 5.25 5.62 5.38 1.591 4.28 .5
326S 8 6.25 12 .66 1.625 5.25 3.25 3 1.416 1.91 .375
326T 8 6.25 12 .66 2.125 5.25 5.25 5 1.845 3.91 .5
326TS 8 6.25 12 .66 1.875 5.25 3.75 3.5 1.591 2.03 .5
364 9 7 11.25 .66 1.875 5.88 5.62 5.38 1.591 4.28 .5
364S 9 7 11.25 .66 1.625 5.88 3.25 3 1.416 1.91 .375
364U 9 7 11.25 .66 2.125 5.88 6.37 6.12 1.845 5.03 .5
364US 9 7 11.25 .66 1.875 5.88 3.75 3.5 1.591 2.03 .5
364T 9 7 11.25 .66 2.375 5.88 5.88 5.62 2.01 4.28 .625
364TS 9 7 11.25 .66 1.875 5.88 3.75 3.5 1.591 2.03 .5
365 9 7 12.25 .66 1.875 5.88 5.62 5.38 1.591 4.28 .5
365S 9 7 12.25 .66 1.625 5.88 3.25 3 1.416 1.91 .375
365U 9 7 12.25 .66 2.125 5.88 6.37 6.12 1.845 5.03 .5
365US 9 7 12.25 .66 1.875 5.88 3.75 3.5 1.591 2.03 .5
365T 9 7 12.25 .66 2.375 5.88 5.88 5.62 2.021 4.28 .625
365TS 9 7 12.25 .66 1.875 5.88 3.75 3.5 1.591 2.03 .5
404 10 8 12.25 .81 2.125 6.62 6.37 6.12 1.845 5.03 .5
404S 10 8 12.25 .81 1.875 6.62 3.75 3.5 1.591 2.03 .5
404U 10 8 12.25 .81 2.375 6.62 7.12 6.88 2.021 5.53 .625
404US 10 8 12.25 .81 2.125 6.62 4.25 4 1.845 2.78 .5
404T 10 8 12.25 .81 2.875 6.62 7.25 7 2.45 5.65 .75
404TS 10 8 12.25 .81 2.125 6.62 4.25 4 1.845 2.78 .5
405 10 8 13.75 .81 2.125 6.62 6.37 6.12 1.845 5.03 .5
405S 10 8 13.75 .81 1.875 6.62 3.75 3.5 1.591 2.03 .5
405U 10 8 13.75 .81 2.375 6.62 7.12 6.88 2.021 5.53 .625
405US 10 8 13.75 .81 2.125 6.62 4.25 4 1.845 2.78 .5
405T 10 8 13.75 .81 2.875 6.62 7.25 7 2.45 5.65 .75
405TS 10 8 13.75 .81 2.125 6.62 4.25 4 1.845 2.78 .5
444 11 9 14.5 .81 2.375 7.5 7.12 6.88 2.021 5.53 .625
444S 11 9 14.5 .81 2.125 7.5 4.25 4 1.845 2.78 .5
444U 11 9 14.5 .81 2.875 7.5 8.62 8.38 2.45 7.03 .75
444US 11 9 14.5 .81 2.125 7.5 4.25 4 1.845 2.78 .5
444T 11 9 14.5 .81 3.375 7.5 8.5 8.25 2.88 6.91 .875
444TS 11 9 14.5 .81 2.375 7.5 4.75 4.5 2.021 3.03 .625
445 11 9 16.5 .81 2.375 7.5 7.12 6.88 2.021 5.53 .625
445S 11 9 16.5 .81 2.125 7.5 4.25 4 1.845 2.78 .5
445U 11 9 16.5 .81 2.875 7.5 8.62 8.38 2.45 7.03 .75
445US 11 9 16.5 .81 2.125 7.5 4.25 4 1.845 2.78 .5
445T 11 9 16.5 .81 3.375 7.5 8.5 8.25 2.88 6.91 .875
445TS 11 9 16.5 .81 2.375 7.5 4.75 4.5 2.021 3.03 .625
447TS 11 9 20 mfg mfg mfg mfg mfg mfg mfg mfg
449TS 11 9 25 mfg mfg mfg mfg mfg mfg mfg mfg

 
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