The Ultimate Electric Motor Frame Size Chart

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Looking for the ideal frame size for your electric motor? We’ve got you covered! Selecting the right size is essential for optimal performance, just like finding the perfect pair of shoes. In this blog, we’ll dive into the various electric motor frame sizes to help you find the perfect fit for your needs.

Electric Motor Frame Size Chart:

NEMA Frame DesignationFrame Dimensions (inches)
DE2FBAN-WVU
422 5/81 3/41 11/162 1/161 1/8 3/8
42C2 5/81 3/41 11/162 1/161 1/8 3/8
4832 1/82 3/42 1/21 1/2 1/2
48C32 1/82 3/42 1/21 1/2 1/2
48H32 1/84 3/42 1/21 1/2 1/2
563 1/22 7/1632 3/41 7/8 5/8
56C3 1/22 7/16 2 3/41 7/8 5/8
56H3 1/22 7/1652 3/41 7/8 5/8
56HZ3 1/22 7/1652 3/42 1/427/8
56J3 1/22 7/16 2 3/42 7/16 5/8
664 1/82 15/1653 1/82 1/4 3/4
        
140T3 1/22 3/442 3/42 1/4 7/8
142AT3 1/22 3/43 1/42 3/41 3/41 1/27/8
143AT3 1/22 3/442 1/41 3/41 1/27/8
143JM3 1/22 3/442 1/4  7/8
143JP3 1/22 3/442 1/4  7/8
143T3 1/22 3/442 1/42 1/427/8
143TC3 1/22 3/442 3/42 1/4 7/8
143TR3 1/22 3/442 1/42 5/81 3/47/8
144AT3 1/22 3/44 1/22 3/41 3/41 1/27/8
145AT3 1/22 3/452 3/41 3/41 1/27/8
145JM3 1/22 3/452 1/4  7/8
145JP3 1/22 3/452 1/4  7/8
145T3 1/22 3/452 1/42 1/427/8
145TC3 1/22 3/452 3/42 1/4 7/8
145TR3 1/22 3/452 1/42 5/81 3/47/8
146AT3 1/22 3/45 1/22 3/41 3/41 1/27/8
146ATC3 1/22 3/45 1/22 3/42 1/4 7/8
147AT3 1/22 3/46 1/42 3/41 3/41 1/27/8
148AT3 1/22 3/472 3/41 3/41 1/27/8
149AT3 1/22 3/482 3/41 3/41 1/27/8
1410AT3 1/22 3/492 3/41 3/41 1/27/8
1411AT3 1/22 3/4102 3/41 3/41 1/27/8
1412AT3 1/22 3/4112 3/41 3/41 1/27/8
1412ATC3 1/22 3/4112 3/42 1/4 7/8
162AT43 1/842 1/21 3/41 1/27/8
163AT43 1/84 1/22 1/21 3/41 1/27/8
164AT43 1/82 1/22 1/21 3/41 1/27/8
165AT43 1/85 1/22 1/22 1/21 3/41 1/27/8
166AT43 1/86 1/42 1/21 3/41 1/27/8
167AT43 1/872 1/21 3/41 1/27/8
168AT43 1/882 1/21 3/41 1/27/8
169AT43 1/892 1/21 3/41 1/27/8
1610AT43 1/8102 1/21 3/41 1/27/8
1824 1/23 3/44 1/22 3/42 1/427/8
L182ACY4 1/23 3/44 1/22 3/42 1/427/8
182AT4 1/23 3/44 1/22 3/42 1/421 1/8
L182AT4 1/23 3/44 1/22 3/4 21 1/8
182JM4 1/23 3/44 1/22 3/4  7/8
182JP4 1/23 3/44 1/22 3/42 3/4 7/8
182T4 1/23 3/44 1/22 3/42 3/42 1/21 1/8
182TC4 1/23 3/44 1/22 3/42 3/4 1 1/8
182TR4 1/23 3/44 1/22 3/42 1/42 1/41 1/8
183AT4 1/23 3/452 3/42 1/421 1/8
1844 1/23 3/45 1/22 3/42 1/427/8
184AT4 1/23 3/45 1/22 3/42 1/421 1/8
184JM4 1/23 3/45 1/22 3/4  7/8
184JP4 1/23 3/45 1/22 3/4  7/8
184TC4 1/23 3/45 1/22 3/42 3/4 1 1/8
184T4 1/23 3/45 1/22 3/42 3/42 1/21 1/8
184TR4 1/23 3/45 1/22 3/43 3/82 1/41 1/8
185AT4 1/23 3/46 1/42 3/42 1/421 1/8
186ACY4 1/23 3/472 3/42 1/427/8
186AT4 1/23 3/472 3/42 1/421 1/8
L186AT4 1/23 3/472 3/42 1/421 1/8
186ATC4 1/23 3/472 3/42 1/4 1 1/8
187AT4 1/23 3/482 3/42 1/421 1/8
188AT4 1/23 3/492 3/42 1/421 1/8
189AT4 1/23 3/4102 3/42 1/421 1/8
189ATC4 1/23 3/4102 3/42 1/4 1 1/8
1810AT4 1/23 3/4112 3/42 1/421 1/8
        
203545 1/23 1/82 1/423/4
204546 1/43 1/82 1/423/4
2135 1/44 1/45 1/23 1/232 3/41 1/8
213AT5 1/44 1/45 1/23 1/22 3/42 1/21 3/8
213JM5 1/44 1/45 1/23 1/2  7/8
213JP5 1/44 1/45 1/23 1/2  1 1/4
213T5 1/44 1/45 1/23 1/23 3/83 1/81 3/8
213TC5 1/44 1/45 1/23 1/23 3/8 1 3/8
213TR5 1/44 1/45 1/23 1/24 1/82 5/81 3/8
214AT5 1/44 1/46 1/43 1/22 3/42 1/21 3/8
2155 1/44 1/473 1/232 3/41 1/8
215AT5 1/44 1/473 1/22 3/42 1/21 3/8
215JM5 1/44 1/473 1/2  7/8
215JP5 1/44 1/473 1/2  1 1/4
215T5 1/44 1/473 1/23 3/83 1/81 3/8
215TC5 1/44 1/473 1/23 3/8 1 3/8
215TR5 1/44 1/473 1/24 1/82 5/81 3/8
216AT5 1/44 1/483 1/22 3/42 1/21 3/8
217AT5 1/44 1/493 1/22 3/42 1/21 3/8
218AT5 1/44 1/4103 1/22 3/42 1/21 3/8
219AT5 1/44 1/4113 1/22 3/42 1/21 3/8
219ATC5 1/44 1/4113 1/22 3/4 1 3/8
2110AT5 1/44 1/412 1/23 1/22 3/42 1/21 3/8
2110ATC5 1/44 1/412 1/23 1/22 3/4 1 3/8
2245 1/24 1/26 3/43 1/232 3/41
2255 1/24 1/27 1/23 1/232 3/41
253AT6 1/4574 1/43 1/431 5/8
2546 1/458 1/44 1/43 3/83 1/81 1/8
254AT6 1/458 1/44 1/43 1/431 5/8
254T6 1/458 1/44 1/443 3/41 5/8
254TC6 1/458 1/44 1/44 1 5/8
254TR6 1/458 1/44 1/44 1/22 7/81 5/8
254U6 1/458 1/44 1/43 3/43 1/21 5/8
255AT6 1/4594 1/43 1/431 5/8
256AT6 1/45104 1/43 1/431 5/8
256T6 1/45104 1/443 3/41 5/8
256TC6 1/45104 1/44 1 5/8
256TR6 1/45104 1/44 1/22 7/81 5/8
256U6 1/45104 1/43 3/43 1/21 3/8
257AT6 1/45114 1/43 1/431 5/8
258AT6 1/4512 1/24 1/43 1/431 5/8
259AT6 1/45144 1/43 1/431 5/8
283AT75 1/284 3/43 1/43 1/21 7/8
28475 1/29 1/24 3/43 3/43 1/21 1/4
284AT75 1/29 1/24 3/43 3/43 1/21 7/8
284T75 1/29 1/24 3/44 5/84 3/81 7/8
284TC75 1/29 1/24 3/44 5/8 1 7/8
284TR75 1/29 1/24 3/44 3/43 1/81 7/8
284TC75 1/29 1/24 3/43 1/431 5/8
284U75 1/29 1/24 3/44 7/84 5/81 5/8
285AT75 1/2104 3/43 3/43 1/21 7/8
286AT75 1/2114 3/43 3/43 1/21 7/8
286T75 1/2114 3/44 5/84 3/81 7/8
286TC75 1/2114 3/44 5/8 1 7/8
286TR75 1/2114 3/44 3/43 1/81 7/8
286TS75 1/2114 3/43 1/431 7/8
286U75 1/2114 3/44 7/84 5/81 7/8
287AT75 1/212 1/24 3/43 3/43 1/21 7/8
288AT75 1/2144 3/43 3/43 1/21 7/8
289AT75 1/2164 3/43 3/43 1/21 7/8
        
323AT86 1/494 3/44 1/442 1/8
32486 1/410 1/25 1/44 7/84 5/81 5/8
324AT86 1/410 1/25 1/44 1/442 1/8
324TR86 1/410 1/25 1/45 1/43 1/22 1/8
324TS86 1/410 1/25 1/43 3/43 1/21 7/8
324U86 1/410 1/25 1/45 5/85 3/81 7/8
325AT86 1/4115 1/44 1/442 1/8
32686 1/4125 1/44 7/84 5/81 5/8
326AT86 1/4125 1/44 1/442 1/8
326T86 1/4125 1/45 1/452 1/8
326TR86 1/4125 1/45 1/43 1/22 1/8
326TS86 1/4125 1/43 3/43 1/21 7/8
326U86 1/4125 1/45 5/85 3/81 7/8
327AT86 1/4145 1/44 1/442 1/8
328AT86 1/4165 1/44 1/442 1/8
329AT86 1/4185 1/44 1/442 1/8
363AT97105 7/84 3/44 1/22 3/8
3649711 1/45 7/85 5/85 3/81 7/8
364AT9711 1/45 7/84 3/44 1/22 3/8
364S9711 1/45 7/83 1/431 5/8
364T9711 1/45 7/85 7/85 7/82 3/8
364TR9711 1/45 7/85 3/43 3/42 3/8
364TS9711 1/45 7/83 3/43 1/21 7/8
364U9711 1/45 7/86 3/86 1/82 1/8
3659712 1/45 7/85 5/85 3/81 7/8
365AT9712 1/45 7/84 3/44 1/22 3/8
365T9712 1/45 7/85 7/84 7/82 3/8
324T86 1/410 1/25 1/45 1/452 1/8
365TR9712 1/45 7/85 3/43 3/42 3/8
365TS9712 1/45 7/83 3/43 1/21 7/8
365U9712 1/45 7/86 3/86 1/82 1/8
366AT97145 7/84 3/44 1/22 3/8
364AT9711 1/45 7/84 3/44 1/22 3/8
367AT97165 7/84 3/44 1/22 3/8
368AT97185 7/84 3/44 1/22 3/8
369AT97205 7/84 3/44 1/22 3/8

Understanding Motor Frame Sizes

Electric motor frame sizes are an essential factor to consider when purchasing a motor or replacing one in equipment. The electric motor frame size chart assists in selecting the correct motor size based on its horsepower, shaft diameter, and mounting type. The frame size is a standardized measurement that manufacturers follow to ensure compatibility with various applications.

The higher the frame size, the larger the motor, making it important to ensure your equipment can accommodate the selected motor size. It is important to understand the motor frame size to ensure the equipment’s safe and efficient operation, reducing downtime and potential damage. With the electric motor frame size chart and understanding of frame sizes, you can make an informed, suitable decision when selecting a motor that is best for your equipment’s needs.

What is a Frame Size?

Frame size refers to the physical dimensions of an electric motor’s housing or frame. It plays a crucial role in the efficiency and effectiveness of a motor because it determines the amount of space available for components such as stators, rotors, windings, and bearings. Determining the correct frame size for a motor is vital because it affects the overall performance, durability, and maintenance of the machine.

A smaller frame size means lighter weight and more compact design, leading to energy savings and better versatility for the motor. Conversely, a larger frame size translates to more power output and increased durability, making it an ideal choice for heavy-duty applications. Therefore, understanding motor frame sizes is crucial to achieving optimal performance and longevity in electric motor applications.

electric motor frame size chart

Why is it Important to Know Your Motor’s Frame Size?

Motor Frame Sizes If you’re in the market for a new motor or are just curious about the one you have, it’s important to understand motor frame sizes. A motor’s frame size refers to the dimensions of its physical structure, and it’s a crucial specification to consider when selecting a motor for a specific application. Knowing your motor’s frame size will help ensure that you select the correct replacement motor if needed down the line.

Additionally, different frame sizes are suitable for different applications, so understanding the requirements for your particular application can help you choose the motor that will perform best. Be sure to consult with a professional if you’re unsure about your motor’s frame size or if you have any questions about selecting the right motor for your needs.

How to Determine Your Motor’s Frame Size

Motor Frame Sizes When it comes to selecting a motor, especially for industrial and mechanical equipment and appliances, understanding frame sizes is crucial. Motor frame sizes vary depending on the manufacturer and the type of motor, but generally, it refers to the physical dimensions of the motor’s housing. Determining a motor’s frame size is important to ensure proper fit and compatibility with the application.

To determine your motor’s frame size, the first step is to check the motor’s nameplate or label, which typically includes information such as the model, horsepower, voltage, and frame size. If the frame size is not listed, the next step is to measure the motor’s mounting base. Use a measuring tape to determine the distance between the mounting holes and the centerline of the shaft.

It’s important to note that even if two motors have the same horsepower and voltage, they may have different frame sizes, so it’s essential to carefully check this specification. Choosing the wrong frame size can result in improper mounting or cause damage to the motor and equipment. In conclusion, understanding motor frame sizes is essential for selecting and installing the right motor for your equipment or application.

It’s always best to consult with a certified electrician or motor specialist if you’re unsure about the proper frame size for your needs.

Electric Motor Frame Size Chart

An electric motor frame size chart is a useful tool for selecting the correct motor for any given application. These charts typically list motor sizes in terms of their frame number or frame size, which is a standardized dimension that encompasses the overall physical size of the motor. The frame size is typically determined by the diameter of the motor’s stator, or the stationary component of the motor that surrounds the rotor.

Using a frame size chart can help ensure that the chosen motor will fit within the required space and have the appropriate power capacity for the application. It’s important to note, however, that other factors such as voltage, speed, and horsepower must also be considered when selecting an electric motor. When selecting a motor, it’s always a good idea to consult with a professional to ensure that the motor will meet all of the requirements of the application.

NEMA Frame Sizes Chart

If you’re in the market for an electric motor, you may have come across the term “NEMA frame size”. NEMA is short for the National Electrical Manufacturers Association, a trade organization that represents electrical equipment manufacturers. Understanding NEMA frame sizes can help ensure you choose the right motor for your needs.

The NEMA frame size chart lists standard sizes for electric motors, based on their horsepower and the diameter of the motor’s mounting face. The larger the motor, the higher the frame size. Frame sizes range from 42 to 45 for small motors up to

5 horsepower, all the way up to 444 and beyond for very large motors. Why does frame size matter? It determines the physical dimensions of the motor and the way it mounts to a machine. If you’re replacing an electric motor, you need to make sure the new motor has the same frame size as the old one.

If you’re building a new machine, you need to choose a motor with the right frame size to fit in the available space and mount correctly. In summary, the NEMA frame size chart is a valuable tool when shopping for electric motors. By paying attention to frame size, you can ensure you choose a motor that will fit your needs and work seamlessly with your other equipment.

So, don’t forget to consider NEMA frame size when shopping for an electric motor!

IEC Frame Sizes Chart

Electric Motor Frame Size Chart When it comes to purchasing or replacing an electric motor, it’s important to know the frame size of the motor. The International Electrotechnical Commission (IEC) has set a standard frame size for electric motors that allows for interchangeability between different manufacturers. The IEC frame sizes range from 56 to 450 and are based on the output shaft height of the motor.

The higher the output shaft height, the larger the frame size. This chart allows for easy reference and identification of the frame size for a particular motor. It’s worth noting that some manufacturers may have slight variations in their frame sizes, but the IEC standard ensures that most motors on the market will fall under these sizes.

By knowing the motor’s frame size, it becomes easier to find a replacement that will fit and function properly in your application.

Common Frame Sizes for Different Motors

When it comes to electric motors, one of the most critical aspects to consider is the frame size. It ensures that the motor fits perfectly into the desired appliance or machine without any complications. Understanding the common frame sizes for different electric motors can make the selection process a lot easier.

For instance, the NEMA frame size chart is used for AC motors, and the IEC frame size chart is used for DC motors. NEMA motors’ frame sizes range from 42 to 449, with each providing a unique set of specifications, such as horsepower ratings and RPMs. On the other hand, IEC motors have sizes ranging from 56 to 355, and the size selection depends on the motor’s specific application.

Therefore, knowing the frame size for the motor you intend to use can significantly contribute to its longevity, efficiency, and performance.

Choosing the Right Motor Frame Size

When it comes to choosing the right electric motor for your application, it’s essential to consider the motor frame size. The electric motor frame size chart can help you determine the appropriate dimensions, such as height, width, and length, required for your specific application. The frame size may impact the motor’s performance, efficiency, and overall lifespan, so it’s essential to choose the right size carefully.

Choosing a motor with a frame that’s too small can result in overheating, while selecting a motor that’s too big can lead to additional expenses and a waste of resources. It’s important to note that frame sizes can vary across different motor manufacturers, so it’s essential to consult the chart provided by the specific manufacturer beforehand. By carefully considering the motor frame size, you can ensure optimal performance and a longer lifespan for your electric motor.

Factors to Consider

Choosing the right motor frame size is a critical factor to consider when deciding on a motor for your application. The frame size determines the physical dimensions of the motor, which can significantly impact its performance. Choosing a motor with the right frame size ensures that it is capable of handling the load and power requirements of your application.

Oversizing or undersizing the motor can lead to inefficiencies, increased costs, and potential damage to your equipment. It’s essential to pay attention to the manufacturer’s recommendations and size the motor correctly for your specific application. By doing so, you can optimize your equipment’s performance, save money, and improve the overall efficiency of your operations.

So, before selecting a motor, make sure you consider the right frame size to ensure that it meets your application’s needs.

Impact of Frame Size on Motor Performance and Efficiency

When it comes to selecting a motor for your machine or equipment, it’s crucial to pick the right frame size. The frame size of a motor refers to its physical dimensions, and it can have a significant impact on its performance and efficiency. Choosing a motor with an oversized frame might seem like a safe bet, but it can actually lead to poor performance and higher energy consumption.

On the other hand, selecting a motor with a smaller frame can lead to overheating and ultimately, premature failure. It’s important to strike a balance and select the appropriate frame size that matches your specific application needs. By doing so, you can optimize motor performance and efficiency, which can save you money on energy bills and prolong your equipment’s lifespan.

So, do your research and select the right motor frame size for your needs, whether it’s for a small DIY project or a complex industrial application.

Conclusion

In conclusion, the electric motor frame size chart may seem daunting at first, but like any good chart, it is a map to help guide you through the vast ocean of electric motor options. Think of it like a decoder ring, unlocking the secrets of motor sizing and compatibility. So the next time you’re in the market for an electric motor, don’t be intimidated by the chart – embrace it and let it lead you to the perfect motor for your needs!

FAQs

How do I choose the correct electric motor frame size?
To choose the correct electric motor frame size, start by consulting the electric motor frame size chart. Look for the frame size that matches your motor’s horsepower and RPM rating to ensure that it will fit and operate smoothly.

What is the most common frame size for electric motors?
The most common frame size for electric motors is NEMA frame size. NEMA frame sizes range from 42 to 449 and are used for a variety of industrial and commercial applications.

Can I replace an electric motor with a different frame size?
It is possible to replace an electric motor with a different frame size, but it may require modifications to the motor mount or the machine it is operating. Refer to the electric motor frame size chart to find a compatible replacement.

Why is the frame size of an electric motor important?
The frame size of an electric motor is important because it determines the motor’s physical dimensions and mounting configuration. Choosing the correct frame size ensures that the motor fits properly and operates efficiently.

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