Ac Induction Motor Frame Sizes

For this type of frame you will have to get clarification on dimensions from the motor oem.

Ac induction motor frame sizes.

71 page 1 of 9. For the squirrel cage 3 phase induction motors of 1000v or lower. Frame size 2 pole 4 pole 6 pole 100 5200 3600 2400 112 5200 3600 2400 132 4500 2700 2400 160 4500 2700 2400. Similarly a 56 frame motor would have a shaft height of 3 1 2 inches.

Dimensions of electrical motor frames according nema 1984 are indicated below. The terminal box for frame size 90s to 160l is fitted on the right hand side seen from the driving end. Three phase ac induction motors from 90w to 500kw filtered by frame. Ac induction motor 5 anema electric motor 5 electric motor rotor 5 variable frequency drive 5.

Tec ie1 0 25kw aluminium three phase motor 230v 400v 4 pole 71 frame b14. 71m4a teca b14 0 2543tecab14 order code. The largest of the current fractional horsepower frame sizes is a 56 frame which is available in horsepowers greater than those normally associated with fractionals. The first are the most commonly chosen induction motors for demanding industrial uses and cover frame sizes 63 450 or 0 12 1 000 kw.

Side t box can be provided on request in frame sizes 180 and above. The frame size provides a standard for details such as the location of mounting holes a height of the shaft above the mounting plate etc. Furthermore these motors exist in three energy efficiency classes. You can figure that a 48 frame motor will have a shaft height of 48 divided by 16 or 3 inches.

1 in inch 25 4 mm 1 inch 25 4 mm sorry to see that you are blocking ads on the engineering toolbox. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions. Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value. Cage 3 phase induction motors lower than 1000v and smaller than 315 frame size can safely run continuously at the speed in the table below.

Now you do have to be careful in regard to medium voltage or high voltage motor frame sizes as these are not regulated like the nema frames. Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat. This name plate shows a frame size 326t. The following specifications documents and dimension charts are available as acrobat pdf files.

These exceptions are noted in the general catalog. Manufacturer s type and frame designation nema defines standard frame sizes. Terminal box on left hand side can also be provided in frame size 90s to 160lon request. Figure 1 typical induction motor nameplate information.