Suffixes to nema frames and what they mean.
T frame motor meaning.
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.
The u frame motors were designed for use with class a insulation which has a rating of 105 c.
Discontinued nema frame.
Dimension of a 213 frame motor is 5 21 divided by 4 5.
Three digit frame numbers are by definition integral frames.
Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase.
To accommo date the larger mechanical horsepower capability shaft and.
Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions.
Critical mounting dimensions for all manufacturers are as defined in nema standard mg 1.
Standard short shaft for direct drive applications.
T frame motor designs are based on utilizing class b insulation with a temperature rating of 130 c.
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.
Sizes ran at very low temperatures.
Electrical motor shaft power electrical motors are rated in horsepower or watt.
Y square with threaded shaft y frame motors feature a square metal flange for bolting to the pump housing.
Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat.
K sump pump motors.
See nema mg1 1998 18 78 for example.
J round flange with threaded shaft this is the standard for round flange motors for modern pumps.
By nema definition two digit frame numbers are fractional frames even though 1 hp or larger motors may be built in them.
These motors are generally made to manufacturers specifications.
The j frame features a threaded shaft for impeller installation.
C round flange with keyed shaft these motors have a notch that runs the length of the exposed motor shaft.
No details may be assumed regarding this designation.
The motor designs were such that the capability would be used at the hottest spot within the motor.
Motors designated 56h have two sets of 2f mounting holes 3 and 5.
284 frame is 28 4 7 d 7 lp or lph.
U a u indicates that the motor is of the 1952 1964 u frame vintage.
Y a y indicates that the motor has a special mounting configuration.
This t frame motor has a standard nema defined c.
Electrical motor efficiency ratings nema electrical motor efficiency ratings.
T frame motor designs are based on utilizing class b insulation with a temperature rating of 130 c.
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.
