To accommo date the larger mechanical horsepower capability shaft and.
T frame motor meaning.
Electrical motor shaft power electrical motors are rated in horsepower or watt.
The u frame motors were designed for use with class a insulation which has a rating of 105 c.
See nema mg1 1998 18 78 for example.
Nema motor dimensions reference chart a ft e r l e t t e r i n d i c a t e s t h e n u m b e r i s a n app r o x i m a te v a l ue.
Y square with threaded shaft y frame motors feature a square metal flange for bolting to the pump housing.
Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase.
This t frame motor has a standard nema defined c.
284 frame is 28 4 7 d 7 lp or lph.
Three digit frame numbers are by definition integral frames.
Y a y indicates that the motor has a special mounting configuration.
By nema definition two digit frame numbers are fractional frames even though 1 hp or larger motors may be built in them.
Discontinued nema frame.
The third numeral indicates the distance between the mounting holes parallel to the base.
Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions.
Electrical motor efficiency ratings nema electrical motor efficiency ratings.
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.
Critical mounting dimensions for all manufacturers are as defined in nema standard mg 1.
U a u indicates that the motor is of the 1952 1964 u frame vintage.
J round flange with threaded shaft this is the standard for round flange motors for modern pumps.
Suffixes to nema frames and what they mean.
Motors designated 56h have two sets of 2f mounting holes 3 and 5.
Dimension of a 213 frame motor is 5 21 divided by 4 5.
Sizes ran at very low temperatures.
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.
K sump pump motors.
No details may be assumed regarding this designation.
T frame motor designs are based on utilizing class b insulation with a temperature rating of 130 c.
C round flange with keyed shaft these motors have a notch that runs the length of the exposed motor shaft.
The j frame features a threaded shaft for impeller installation.
This increase in temperature capability made it possible to pack more horsepower into the same size frame.
This motor is a modern standard t frame motor.
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.
These motors are generally made to manufacturers specifications.
