Nema motor size chart

Step motors are categorized by frame size , such as size or size 23. Ever wonder how that came to be or what it means? The National Electrical Manufacturers Association sets standards for many electrical products, including step motors.

Generally speaking, size mean the mounting face of the . Most of our models are the high torque style, with holding torques up to.

Industrial Electric Motors and Drives.

NEMA is National Electrical Manufacturers Association and their standard for motor mounts is commonly used in the industry to ensure that replacement parts will fit and be readily available, and that motors from different mfgs will be interchangeable.

The NEMA number is related to the diameter of the . All motors can be wired in series or parallel, depending on the requirement. Frame numbers are not intended to indicate electrical characteristics such as horsepower. There are many motors of the same horsepower built in different frames.

AA dimensions shown in chart are Baldor typical values meeting or exceeding NEMA.

Please check motor drawing for actual dimensions. Frame L449T is not included in this chart. Please refer to the Large AC motor chart , or to the specific motor drawings for L449T dimensions.

For standard NEMA base dimensions , see chart on back cover. All dimensions are measured in inches.

For “C” dimensions , refer to the appropriate catalog page. Certified drawings are available upon request - contact LEESON for details . Nema Starter Sizes based on Motor Horsepower and Voltage. Reed Electric is an electric motor repair and sales operation with facilities located in Los Angeles, California and Reno, Nevada. THREE PHASE FRAME SIZES — GENERAL PURPOSE.

Figure - Nameplate position of Wmotors.

We will discuss common industrial applications with guides for the proper use of electric motors on these. For the convenience of the motor buyer or specifier, the National Electrical Manufacturers. Association ( NEMA ), a nonprofit trade organization, establishes standards which set forth critical mounting dimensions . Drawings represent standard TEFC general purpose motors.

Refer Data Section 5for various models, OPEN or TEFC. Dimensions are for reference only.