Electric Motors: A Selection Guide

There are several electric motor enclosure types on the market.  When choosing an enclosure, it is essential to consider the environment in which the motor will operate. Gainesville Industrial Electric Co. offers a variety of enclosures to fit your specific requirements.

There are so many options to choose from that choosing which one is ideal for your requirements might be difficult. We’ll go through the most common types of motor enclosures and provide a guide to assist you in selecting the best one for your application.

What is a motor enclosure and what are the different types of enclosures

A motor enclosure is a casing that surrounds the electric motor to protect it from environmental conditions and debris.

Engineering Notes states that the primary purpose of a motor enclosure is to provide safety for humans from getting in touch with moving parts within the enclosure, as well as protection for machines against the entrance of solid foreign bodies and water ingress.

There are several types of enclosures in the market, each with advantages and disadvantages.

  • Open Enclosures: Open drip proof enclosures offer the least protection for your electric motor. They are a good choice for indoor applications where protection from water and dust is not needed. They have vents in the motor body that allows air to circulate through the interior and helps keep the motor cool.
  • Enclosed Enclosures: Totally enclosed enclosure offers more protection than open enclosures by keeping out dust, debris, and other contaminants. They also provide some protection against water. An enclosed motor may be the best choice if you want a more durable option in harsh conditions.
  • Explosion-Proof Enclosures: Explosion-proof enclosures protect your working environment by containing internal explosions. These enclosures are made with unique materials that withstand high temperatures and pressure. If you work in an environment with flammable materials such as gases, dust, or liquids, an explosion-proof enclosure is the best option to keep you safe.

How to select the best type of enclosure for your needs

Now that you know the electric motor enclosure types, how do you know which one is the best for your needs?

The following are factors to consider when selecting a motor enclosure:

  • Application: The first step is to determine the intended use or application of the electric motor. This will help you narrow down the type of enclosure you need.
  • Environment: The next step is to assess the environmental conditions where the electric motor will be used. This includes considering factors such as dust, water, temperature, and explosion risk.
  • Budget: Once you have determined the electric motor’s intended use and environment, you can assess your budget to find an enclosure that fits your needs.

High Tech Guide notes that it is vital to understand the different types of threats your motor needs to be protected against and how much protection each type of threat requires. When dealing with a dirty environment, such as a mining site or an industrial area, ensure your enclosure can keep dust out.

Ensure you consult a certified engineer when selecting an enclosure for your electric motor. A qualified engineer can help you assess the electric motor’s environmental conditions and intended use to find the best enclosures for your application. Having the appropriate enclosure will save you money over time.

Types of enclosures we offer and their features

At Gainesville Industrial Electric Co, we provide various types of enclosures. Let’s have a closer look at each of them.

Open drip-proof Motor Enclosure

Open drip-proof motors in demand due to their reliable performance and durability. These motors feature an enclosure that protects the interior components from dust, dirt, and moisture while allowing air to freely circulate around them.

TEFC (Totally Enclosed Fan Cooled) Enclosure

TEFC (Totally Enclosed Fan Cooled) enclosures are designed to protect from dust, oil, and water vapor. These specialized enclosures are generally made of steel or aluminum with a sealable access door. TEFC enclosures typically include features such as vents, fans, and filters to help keep the environment inside the enclosure cool and clean.

TENV (Totally Enclosed Non-Ventilated) Enclosure

TENV (Totally Enclosed Non-Ventilated) enclosures are designed to protect electrical components and equipment from hazardous environmental conditions. These industrial housings provide an effective barrier against dust, dirt, oil, moisture, and other corrosive materials that can cause damage to sensitive equipment. The enclosure also helps prevent accidental contact with live parts, reducing the risk of electric shock.

WPI (Weather Protected) Enclosure

WPI enclosures are for outdoor use. They provide a reliable protection from weather, dust and rodents. These enclosures resist corrosion, animal protection, saltwater spray, and chemical exposure.

The enclosure you need to protect your electric motor

It is crucial to choose a motor with the correct enclosure so that it will be suitable for your application. This will keep you safe as well as prolong the life of the motor.

At Gainesville Industrial Electric Co, we offer motors with every enclosure option. Contact us today to learn more about our solutions and services.

Electric Motors – All You Need to Know

Electric motors are electromechanical devices that convert electrical energy into mechanical energy to power equipment. Powered by stored electrical energy or a direct electrical connection, these devices operate by generating rotating magnetic fields to produce rotational force. The force is then used to drive a shaft which, in turn, drives equipment.

Different Types of Electric Motors

While electric motors are available in a wide range of designs with various operational and safety features, they can be categorized into two broad categories: alternating current (AC) and direct current (DC).

While the power source is the most significant difference between the two motor types, each also offers different functionality and ideal applications. AC motors can drive complex and more fragile equipment, whereas DC motors usually power heavier equipment that needs easier maintenance and operation controls. AC motors can also provide higher levels of torque, leading to many industry professionals considering them as more powerful than DC motors.

Industrial Applications of Electric Motors

Electric motors find application in a variety of equipment throughout industry. Common industrial applications include:

  • Compressors
  • Fans and Blowers
  • Heavy-duty equipment
  • HVAC systems
  • Crushers
  • Pumps
  • Lathes

Choosing the Right Electric Motor for Your Needs

The right type of electric motor for an application varies depending on the equipment employed. For example, a motor must be chosen to suit the attached machine’s startup power levels and operational power output requirements. An improperly matched motor can cause significant damage to the machine or result in stalling and failure. Multi-phase motors and motors with different voltage levels are available so motor technicians can more easily match industrial equipment with the appropriate motor. Click Here to Receive a Quote 

Types of Electric Motors

At Gainesville Industrial Electric, we offer a comprehensive selection of electric motors from Marathon, Teco-Westinghouse, Leeson, Lincoln, Century, GE, Baldor and Worldwide Electric. Each motor has unique features, attributes, and recommended applications. Our product offerings range from fractional single and three phase motors to large medium and high voltage motors.

General-Purpose – Single-Phase Motors

Our selection of general-purpose, single-phase motors includes:

  • Drip Proof Motors
  • Totally Enclosed Motors
  • Hazardous Duty Division 1, Explosion-Proof Motors
General-Purpose – Single-Phase Motors

General-Purpose – Three-Phase Motors

Three-phase motors have a voltage of 208, 230, 460 or 575. We offer the following general-purpose, three-phase electric motors:

  • Drip Proof Motors
  • Totally Enclosed Motors
  • Severe Duty Motors
General-Purpose – Three-Phase Motors

Hazardous Duty – Three-Phase Motors

Hazardous duty, three-phase motors are designed and built to withstand more severe operating conditions than general-purpose motors. While all of these motors are suitable for Division 1 locations, individual models are suited for Class I and/or Class II locations with Group C, D, E, F, and/or G hazardous materials.

Hazardous Duty – Three-Phase Motors

Washdown Duty, Painted and Stainless Steel Motors

Washdown Duty painted and stainless steel motors are designed for rugged and demanding environments such as food processing, chemical processing and carwash applications. They are available in single and three phase models up to 20HP

Washdown Duty, Painted and Stainless Steel Motors

Medium Voltage Motors

These medium voltage motors run on 2,300 or 4,000 volts. Available in weather protected, blower-cooled, and totally enclosed models. Additional features include roller bearing conversion kits, WPII kits, and energy saver designs.

Medium Voltage Motors

Electric Pump Motors

Electric pump motors are designed to have enough power to drive a pump without overloading. They have special shafts for use with mechanical seals (JM Frame) or packing (JP Frame). Applications for these motors include use on centrifugal or close-coupled pumps, jet pumps, and pool pumps.

Electric Pump Motors

Inverter Duty and Vector Duty Motors

When variable frequency drives (VFDs) drive motors, they produce large voltage spikes. Inverter duty and vector duty motors can withstand these spikes and operate without overheating.

Inverter Duty and Vector Duty Motors

Permanent Magnet DC Motors

DC motors are used for immediate startups and applications where quick changes are more critical than gradual or soft changes. Permanent magnet DC motors facilitate these simpler startup operations.

Permanent Magnet DC Motors

Air Compressor Motors

Air compressor motors generate the power and high levels of torque necessary to drive portable and stationary air compressors used in facilities such as body shops and manufacturing plants.

Air Compressor Motors

Brake Motors

Brake motors are typically single-disc AC or DC motors that can stop driven motion quickly. They are designed to do so safely without jarring or shortening the lifespan of the equipment.

Brake Motors

Cooling Tower Motors

These motors provide power for cooling towers. They’re designed to withstand the hot and humid harsh conditions typical of cooling towers. TEAO and TEFC enclosures are available as well as single and two-speed motors.

Cooling Tower Motors

Farm Duty/Agricultural Motors

These motors meet high-torque requirements for farming and agricultural equipment, such as auger drivers and grain stirring machinery.

Farm Duty/Agricultural Motors

HVAC Motors

These motors power a range of HVAC equipment, such as:

  • Blowers
  • Fans
  • Oil burners
  • Pumps
  • Ventilators

. Instant Reversing Motors

These motors are suitable for applications that require the instantaneous reversal of motion, such as for opening, closing, and hoisting barriers.

. Crusher Duty Motors

These severe duty motors feature high starting and breakdown torque. Chippers and crushers typically benefit from these specialty motors due to their durable design and high-strength components.

Crusher Duty Motors

Industrial Electric Motors Solutions From GIE

Choosing the right motor for an industrial application ensures better performance over the lifespan of the equipment employed. Many specialty motors include safety features or unique power options for enhanced performance.

At Gainesville Industrial Electric, we are proud to distribute high-quality industrial electric motors from leading manufacturers, such as Marathon, Teco-Westinghouse, Leeson, Lincoln, Century, GE, Baldor, and Worldwide Electric. Additionally, we maintain a full-service motor and pump repair shop to readily service any brand of motor.

To learn more about our product and service offerings or for assistance selecting, sourcing, or maintaining an electric motor, contact us or request a quote today.