Nema 48 Frame Motor Dimensions

Iec nema standard torques iec and nema torque classifications of electrical motors.

Nema 48 frame motor dimensions. Horsepower speed rpm and enclosure determine appropriate motor frame. Keyseat dimensions frame 42 48 56 56h 143t 145t 182 184 182t 184t 213 215 213t 215t 254u 256u 254t 256t 284u 286u 284t 286t 284ts 286ts 324u 326u 324t 326t. Nema quick reference chart nema frame de2f h nop uvaa ab ah aj ak ba bb bd xo tap. Searching for nema 48 motors.

In any standard frame number designation there are either two or three numbers. For this type of frame you will have to get clarification on dimensions from the motor oem. Frames 48 to 66 inclusive. Nema motor the ba dimensions are.

Typical examples of frame numbers 48 56 145 and 215. These exceptions are noted in the general catalog. Nema national electrical manufacturers association national electrical manufacturers association. There are many motors of the same horsepower built in different frames.

Nema c face ba dimensions 143 5tc 2 3 4 182 4tc 3 1 2 213 5tc 4 1 4 254 6tc 4 3 4 5000. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t 145t mounting dimensions. 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. The h dimension is diameter of hole.

These motors are many times referred to as above nema or anema motors since there isn t a nema frame to match to. The h dimension is width of slot. Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat. 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.

Nema national electrical manufacturers association frame size refers to mounting only and has no direct bearing on the motor body diameter. Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value. Can figure that a 48 frame motor will have a shaft height of 48 divided by 16 or 3 inches. Drawings represent standard tefc general purpose motors refer data section 502 for various models open or tefc.

Frames 143 to 505s inclusive. Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value. Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase. Frame is a designation that helps provide critical motor dimensions such as shaft length diameter height and mounting pattern.

Similarly a 56 frame motor would have a shaft height of 3 1 2 inches.