Nema mg1 part 31 inverter duty 151 constant torque service factor 115 ip55 degree of protection 033 vpi impregnation 900 56 bf8n33 2 bf8n33 5 297 62 1154 17. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions.
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Nema quick reference chart nema frame de2f h nop uvaa ab ah aj ak ba bb bd xo tap.
Nema 56 frame dimensions. The frame number relates to the d dimension distance from center of shaft to center bottom of mount. W range nema aluminum construction tefc 3 nema 56 frame foot mounted 3ph 60 hz aluminum construction performance page 77 dimensions page 67 68 10 features. Nema c face ba dimensions 143 5tc 2 34 182 4tc 3 12 213 5tc 4 1 4 254 6tc 4 34 5000 framede2fhopuvaa ab ba 5 0 7s 1 2 63 4 npt 8.
Please call for exact dimensions. Nema c and j face mounting dimensions mounting dimensions of 1the 156j face are exactly the same as the nema 456c. See illustrations and table below for specics.
C n o p ab are specific to each manufacturer. 56j face 5has 3a threaded shaft of stainless steel while all others have a keyed steel shaft. At certain nema 56z frame motors have 12 x 1 12 long shaft with 364 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. When a c flange has been added to a nema motor the ba dimensions are. 143 5tc 2 34 182 4tc 3 12 213 5tc 4 14 254 6tc 4 34 dimensions.
For the d dimension of a three digit frame number consider only the first two digits and use the divisor 4. Similarly a 56 frame motor would have a shaft height of 3 12 inches. Standard 56c defines the bolt hole spacing of mounting face plates for electrical devices and these measurements are closely adhered to by all nema members.
Nema electrical motor frame dimensions engineering toolbox resources tools and basic information for engineering and design of technical applications. Discontinued nema frame. The dimensions of a nema 56c.
For example in the two digit 56 frame the d dimension is 3 56 divided by 16 3. Nema set standards of height width and length for electrical devices so that one manufacturers products could easily interchange with anothers. Nema frames prior to 1953 framedefnuvba.
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