T Frame Motor Meaning

This t frame motor has a standard nema defined c.

T frame motor meaning.

Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase. U a u indicates that the motor is of the 1952 1964 u frame vintage. See nema mg1 1998 18 78 for example. This motor is a modern standard t frame motor.

Y a y indicates that the motor has a special mounting configuration. The j frame features a threaded shaft for impeller installation. 284 frame is 28 4 7 d 7 lp or lph. Dimension of a 213 frame motor is 5 21 divided by 4 5.

Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat. Standard short shaft for direct drive applications. Critical mounting dimensions for all manufacturers are as defined in nema standard mg 1. This increase in temperature capability made it possible to pack more horsepower into the same size frame.

K sump pump motors. Motors designated 56h have two sets of 2f mounting holes 3 and 5. D dimension shaft height of a motor or generator in these frame sizes equals the value of the first two digits in the frame number. To accommo date the larger mechanical horsepower capability shaft and.

The motor designs were such that the capability would be used at the hottest spot within the motor. Discontinued nema frame. Sizes ran at very low temperatures. By nema definition two digit frame numbers are fractional frames even though 1 hp or larger motors may be built in them.

C round flange with keyed shaft these motors have a notch that runs the length of the exposed motor shaft. Electrical motor efficiency ratings nema electrical motor efficiency ratings. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions. Electrical motor shaft power electrical motors are rated in horsepower or watt.

The third numeral indicates the distance between the mounting holes parallel to the base. T h e s e d i m en s i o n s a r e s p e c i f i c t o e a c h m anu f a c t u r e r. Y square with threaded shaft y frame motors feature a square metal flange for bolting to the pump housing. T frame motor designs are based on utilizing class b insulation with a temperature rating of 130 c.

Suffixes to nema frames and what they mean. J round flange with threaded shaft this is the standard for round flange motors for modern pumps. The u frame motors were designed for use with class a insulation which has a rating of 105 c. These motors are generally made to manufacturers specifications.

T a t indicates that the motor is of the 1964 and later t frame vintage. No details may be assumed regarding this designation.