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Download NowDimensions of electrical motor frames according NEMA 1984 are indicated below:

| NEMA Frame Designation | Frame Dimensions (inches) | ||||||
|---|---|---|---|---|---|---|---|
| D | E | 2F | BA | N-W | V | U | |
| 42 | 2 5/8 | 1 3/4 | 11/16 | 2 1/16 | 1 1/8 | 3/8 | |
| 42C | 2 5/8 | 1 3/4 | 11/16 | 2 1/16 | 1 1/8 | 3/8 | |
| 48 | 3 | 2 1/8 | 2 3/4 | 2 1/2 | 1 1/2 | 1/2 | |
| 48C | 3 | 2 1/8 | 2 3/4 | 2 1/2 | 1 1/2 | 1/2 | |
| 48H | 3 | 2 1/8 | 4 3/4 | 2 1/2 | 1 1/2 | 1/2 | |
| 56 | 3 1/2 | 2 7/16 | 3 | 2 3/4 | 1 7/8 | 5/8 | |
| 56C | 3 1/2 | 2 7/16 | 2 3/4 | 1 7/8 | 5/8 | ||
| 56H | 3 1/2 | 2 7/16 | 5 | 2 3/4 | 1 7/8 | 5/8 | |
| 56HZ | 3 1/2 | 2 7/16 | 5 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 56J | 3 1/2 | 2 7/16 | 2 3/4 | 2 7/16 | 5/8 | ||
| 66 | 4 1/8 | 2 15/16 | 5 | 3 1/8 | 2 1/4 | 3/4 | |
| 140T | 3 1/2 | 2 3/4 | 4 | 2 3/4 | 2 1/4 | 7/8 | |
| 142AT | 3 1/2 | 2 3/4 | 3 1/4 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 143AT | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 1 3/4 | 1 1/2 | 7/8 |
| 143JM | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 7/8 | ||
| 143JP | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 7/8 | ||
| 143T | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 2 1/4 | 2 | 7/8 |
| 143TC | 3 1/2 | 2 3/4 | 4 | 2 3/4 | 2 1/4 | 7/8 | |
| 143TR | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 2 5/8 | 1 3/4 | 7/8 |
| 144AT | 3 1/2 | 2 3/4 | 4 1/2 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 145AT | 3 1/2 | 2 3/4 | 5 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 145JM | 3 1/2 | 2 3/4 | 5 | 2 1/4 | 7/8 | ||
| 145JP | 3 1/2 | 2 3/4 | 5 | 2 1/4 | 7/8 | ||
| 145T | 3 1/2 | 2 3/4 | 5 | 2 1/4 | 2 1/4 | 2 | 7/8 |
| 145TC | 3 1/2 | 2 3/4 | 5 | 2 3/4 | 2 1/4 | 7/8 | |
| 145TR | 3 1/2 | 2 3/4 | 5 | 2 1/4 | 2 5/8 | 1 3/4 | 7/8 |
| 146AT | 3 1/2 | 2 3/4 | 5 1/2 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 146ATC | 3 1/2 | 2 3/4 | 5 1/2 | 2 3/4 | 2 1/4 | 7/8 | |
| 147AT | 3 1/2 | 2 3/4 | 6 1/4 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 148AT | 3 1/2 | 2 3/4 | 7 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 149AT | 3 1/2 | 2 3/4 | 8 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1410AT | 3 1/2 | 2 3/4 | 9 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1411AT | 3 1/2 | 2 3/4 | 10 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1412AT | 3 1/2 | 2 3/4 | 11 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1412ATC | 3 1/2 | 2 3/4 | 11 | 2 3/4 | 2 1/4 | 7/8 | |
| 162AT | 4 | 3 1/8 | 4 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 163AT | 4 | 3 1/8 | 4 1/2 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 164AT | 4 | 3 1/8 | 2 1/2 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 165AT | 4 | 3 1/8 | 5 1/22 1/2 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 166AT | 4 | 3 1/8 | 6 1/4 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 167AT | 4 | 3 1/8 | 7 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 168AT | 4 | 3 1/8 | 8 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 169AT | 4 | 3 1/8 | 9 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 1610AT | 4 | 3 1/8 | 10 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 182 | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| L182ACY | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 182AT | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| L182AT | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 | 1 1/8 | |
| 182JM | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 7/8 | ||
| 182JP | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 3/4 | 7/8 | |
| 182T | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 3/4 | 2 1/2 | 1 1/8 |
| 182TC | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 3 3/8 | 1 1/8 | |
| 182TR | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 1/4 | 1 1/8 |
| 183AT | 4 1/2 | 3 3/4 | 5 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 184 | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 184AT | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 184JM | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 7/8 | ||
| 184JP | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 7/8 | ||
| 184TC | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 3/4 | 1 1/8 | |
| 184T | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 3/4 | 2 1/2 | 1 1/8 |
| 184TR | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 3 3/8 | 2 1/4 | 1 1/8 |
| 185AT | 4 1/2 | 3 3/4 | 6 1/4 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 186ACY | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 186AT | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| L186AT | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 186ATC | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 1 1/8 | |
| 187AT | 4 1/2 | 3 3/4 | 8 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 188AT | 4 1/2 | 3 3/4 | 9 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 189AT | 4 1/2 | 3 3/4 | 10 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 189ATC | 4 1/2 | 3 3/4 | 10 | 2 3/4 | 2 1/4 | 1 1/8 | |
| 1810AT | 4 1/2 | 3 3/4 | 11 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 203 | 5 | 4 | 5 1/2 | 3 1/8 | 2 1/4 | 2 | 3/4 |
| 204 | 5 | 4 | 6 1/4 | 3 1/8 | 2 1/4 | 2 | 3/4 |
| 213 | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 3 | 2 3/4 | 1 1/8 |
| 213AT | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 213JM | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 7/8 | ||
| 213JP | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 1 1/4 | ||
| 213T | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 3 3/8 | 3 1/8 | 1 3/8 |
| 213TC | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 3 3/8 | 1 3/8 | |
| 213TR | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 4 1/8 | 2 5/8 | 1 3/8 |
| 214AT | 5 1/4 | 4 1/4 | 6 1/4 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 215 | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 3 | 2 3/4 | 1 1/8 |
| 215AT | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 215JM | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 7/8 | ||
| 215JP | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 1 1/4 | ||
| 215T | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 3 3/8 | 3 1/8 | 1 3/8 |
| 215TC | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 3 3/8 | 1 3/8 | |
| 215TR | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 4 1/8 | 2 5/8 | 1 3/8 |
| 216AT | 5 1/4 | 4 1/4 | 8 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 217AT | 5 1/4 | 4 1/4 | 9 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 218AT | 5 1/4 | 4 1/4 | 10 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 219AT | 5 1/4 | 4 1/4 | 11 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 219ATC | 5 1/4 | 4 1/4 | 11 | 3 1/2 | 2 3/4 | 1 3/8 | |
| 2110AT | 5 1/4 | 4 1/4 | 12 1/2 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 2110ATC | 5 1/4 | 4 1/4 | 12 1/2 | 3 1/2 | 2 3/4 | 1 3/8 | |
| 224 | 5 1/2 | 4 1/2 | 6 3/4 | 3 1/2 | 3 | 2 3/4 | 1 |
| 225 | 5 1/2 | 4 1/2 | 7 1/2 | 3 1/2 | 3 | 2 3/4 | 1 |
| 253AT | 6 1/4 | 5 | 7 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 254 | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 3 3/8 d> | 3 1/8 | 1 1/8 |
| 254AT | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 254T | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 4 | 3 3/4 | 1 5/8 |
| 254TC | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 4 | 1 5/8 | |
| 254TR | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 4 1/2 | 2 7/8 | 1 5/8 |
| 254U | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 3 3/4 | 3 1/2 | 1 5/8 |
| 255AT | 6 1/4 | 5 | 9 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 256AT | 6 1/4 | 5 | 10 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 256T | 6 1/4 | 5 | 10 | 4 1/4 | 4 | 3 3/4 | 1 5/8 |
| 256TC | 6 1/4 | 5 | 10 | 4 1/4 | 4 | 1 5/8 | |
| 256TR | 6 1/4 | 5 | 10 | 4 1/4 | 4 1/2 | 2 7/8 | 1 5/8 |
| 256U | 6 1/4 | 5 | 10 | 4 1/4 | 3 3/4 | 3 1/2 | 1 3/8 |
| 257AT | 6 1/4 | 5 | 11 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 258AT | 6 1/4 | 5 | 12 1/2 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 259AT | 6 1/4 | 5 | 14 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 283AT | 7 | 5 1/2 | 8 | 4 3/4 | 3 1/4 | 3 1/2 | 1 7/8 |
| 284 | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 3 3/4 | 3 1/2 | 1 1/4 |
| 284AT | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 284T | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 5/8 | 4 3/8 | 1 7/8 |
| 284TC | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 5/8 | 1 7/8 | |
| 284TR | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 3/4 | 3 1/8 | 1 7/8 |
| 284TC | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 3 1/4 | 3 | 1 5/8 |
| 284U | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 7/8 | 4 5/8 | 1 5/8 |
| 285AT | 7 | 5 1/2 | 10 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 286AT | 7 | 5 1/2 | 11 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 286T | 7 | 5 1/2 | 11 | 4 3/4 | 4 5/8 | 4 3/8 | 1 7/8 |
| 286TC | 7 | 5 1/2 | 11 | 4 3/4 | 4 5/8 | 1 7/8 | |
| 286TR | 7 | 5 1/2 | 11 | 4 3/4 | 4 3/4 | 3 1/8 | 1 7/8 |
| 286TS | 7 | 5 1/2 | 11 | 4 3/4 | 3 1/4 | 3 | 1 7/8 |
| 286U | 7 | 5 1/2 | 11 | 4 3/4 | 4 7/8 | 4 5/8 | 1 7/8 |
| 287AT | 7 | 5 1/2 | 12 1/2 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 288AT | 7 | 5 1/2 | 14 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 289AT | 7 | 5 1/2 | 16 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 323AT | 8 | 6 1/4 | 9 | 4 3/4 | 4 1/4 | 4 | 2 1/8 |
| 324 | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 4 7/8 | 4 5/8 | 1 5/8 |
| 324AT | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 324TR | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 5 1/4 | 3 1/2 | 2 1/8 |
| 324TS | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 324U | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 5 5/8 | 5 3/8 | 1 7/8 |
| 325AT | 8 | 6 1/4 | 11 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 326 | 8 | 6 1/4 | 12 | 5 1/4 | 4 7/8 | 4 5/8 | 1 5/8 |
| 326AT | 8 | 6 1/4 | 12 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 326T | 8 | 6 1/4 | 12 | 5 1/4 | 5 1/4 | 5 | 2 1/8 |
| 326TR | 8 | 6 1/4 | 12 | 5 1/4 | 5 1/4 | 3 1/2 | 2 1/8 |
| 326TS | 8 | 6 1/4 | 12 | 5 1/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 326U | 8 | 6 1/4 | 12 | 5 1/4 | 5 5/8 | 5 3/8 | 1 7/8 |
| 327AT | 8 | 6 1/4 | 14 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 328AT | 8 | 6 1/4 | 16 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 329AT | 8 | 6 1/4 | 18 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 363AT | 9 | 7 | 10 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 364 | 9 | 7 | 11 1/4 | 5 7/8 | 5 5/8 | 5 3/8 | 1 7/8 |
| 364AT | 9 | 7 | 11 1/4 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 364S | 9 | 7 | 11 1/4 | 5 7/8 | 3 1/4 | 3 | 1 5/8 |
| 364T | 9 | 7 | 11 1/4 | 5 7/8 | 5 7/8 | 5 7/8 | 2 3/8 |
| 364TR | 9 | 7 | 11 1/4 | 5 7/8 | 5 3/4 | 3 3/4 | 2 3/8 |
| 364TS | 9 | 7 | 11 1/4 | 5 7/8 | 3 3/4 | 3 1/2 | 1 7/8 |
| 364U | 9 | 7 | 11 1/4 | 5 7/8 | 6 3/8 | 6 1/8 | 2 1/8 |
| 365 | 9 | 7 | 12 1/4 | 5 7/8 | 5 5/8 | 5 3/8 | 1 7/8 |
| 365AT | 9 | 7 | 12 1/4 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 365T | 9 | 7 | 12 1/4 | 5 7/8 | 5 7/8 | 4 7/8 | 2 3/8 |
| 324T | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 5 1/4 | 5 | 2 1/8 |
| 365TR | 9 | 7 | 12 1/4 | 5 7/8 | 5 3/4 | 3 3/4 | 2 3/8 |
| 365TS | 9 | 7 | 12 1/4 | 5 7/8 | 3 3/4 | 3 1/2 | 1 7/8 |
| 365U | 9 | 7 | 12 1/4 | 5 7/8 | 6 3/8 | 6 1/8 | 2 1/8 |
| 366AT | 9 | 7 | 14 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 364AT | 9 | 7 | 11 1/4 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 367AT | 9 | 7 | 16 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 368AT | 9 | 7 | 18 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 369AT | 9 | 7 | 20 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |