NEMA Magnetic Motor Starters

National Motor Starters is proud to carry a large selection of NEMA motor starters used in industrial and commercial applications in North America.

Applications where NEMA enclosed magnetic motor starters are commonly used include:

HVAC systems to control the electric motors that power air conditioning and heating systems in commercial and industrial buildings.
Pumps to control the electric motors that power pumps in industrial and commercial settings such as water treatment plants, irrigation systems, and more.
Conveyor belts to control the electric motors that power conveyor belts in industrial settings such as manufacturing plants, warehouses, and more.

Machinery to control the electric motors that power various types of industrial machinery such as lathes, drill presses, and more.
Power generators to control the electric motors that power generators in industrial and commercial settings.

Professionals choose NEMA magnetic motor starters because they provide protection and control for your electric motor. The starter is responsible for starting and stopping your motor, as well as protecting it from damage caused by overloading or other abnormal conditions. NEMA magnetic motor starters provide a way to control and protect the motor by using a switch and a set of contacts, as well as other components such as overload protection and control circuits.

An enclosed magnetic motor starter consists of a magnetic switch (also known as a "magnetic contactor") and an overload protection device (such as a thermal overload relay) enclosed in a protective metal housing.

Broken down, this looks like:

a starter enclosure to house the components of the starter
a motor control circuit which controls the flow of electricity to the motor

You can find NEMA motor starters with different voltages, horsepower, control transformers, and enclosure types, and control switches.

Benefits of NEMA Enclosed Magnetic Motor Starter

Protection of the motor and starter components from dust, debris, and other environmental factors.

Improved safety for operators by enclosing live electrical components.

Ease of installation and maintenance as all components are in one enclosure.

Increased reliability by reducing the potential for damage to the starter components.

Noise reduction by enclosing the starter components.

Compliance with NEMA standards, which ensures that the starter meets certain safety and performance requirements.

Choosing a NEMA magnetic motor starter means you can rest easy knowing your equipment meets certain safety and performance standards as per NEMA, which can provide peace of mind and ensure that the starter is suitable for your application.

NEMA standards are specific to the North American market, and equipment manufactured to meet these standards may not be compatible with equipment manufactured to meet International Electrotechnical Commission (IEC) or other international standards. Consult with a qualified electrician or engineer to determine the best starter for your specific application and to ensure compliance with local and national codes.

Consult with a qualified electrician or engineer to determine the best starter for your specific application and to ensure compliance with local and national codes

FAQs

What are the benefits of using an enclosed motor starter?

An enclosed motor starter is designed to protect the components of the starter from damage, potentially extending its life. The enclosure works to keep your motor starter safe from dust, dirt, moisture, and other potential contaminants.

What does IEC mean when it comes to enclosed magnetic motor starters?

The National Electrical Manufacturers Association (NEMA) is a trade association that sets standards for electrical equipment and components. When it comes to enclosed magnetic motor starters, NEMA sets standards for their construction, performance, and safety. These standards cover things such as the materials and finishes used, the environmental conditions the starter can operate in, and the safety features that must be included. By meeting these standards, manufacturers can ensure that their starters are safe, reliable, and suitable for a wide range of applications.

A NEMA rated enclosed magnetic motor starter means that the starter is constructed and tested to meet the standards set by the trade association. Therefore, it can be used in a variety of industrial and commercial settings, ensuring that the starter meets certain safety and performance requirements.

What is a NEMA magnetic motor starter?

A NEMA magnetic motor starter is a device that controls the starting, stopping, and protection of an electric motor. It typically consists of a switch and a set of contacts, as well as other components such as overload protection and control circuits.

How does a NEMA magnetic motor starter work?

A NEMA magnetic motor starter works by controlling the flow of electricity to the motor. When the starter is turned on, it sends a current to the motor, which causes it to start. When the starter is turned off, it interrupts the flow of electricity to the motor, causing it to stop.

What are the benefits of using a NEMA magnetic motor starter?

Some benefits of using a NEMA magnetic motor starter include increased safety, improved reliability, and reduced maintenance. It also provides protection for the motor and starter components from dust, debris and other environmental factors.

How do I know if a NEMA magnetic motor starter is right for my application?

NEMA magnetic motor starters are suitable for a wide range of applications, but it is important to ensure that the starter is rated for the specific voltage and current requirements of your motor. It is also important to consider any specific environmental or safety requirements of your application.

What is the difference between an open and enclosed NEMA magnetic motor starter?

An open NEMA magnetic motor starter is not enclosed, while an enclosed NEMA magnetic motor starter is enclosed in a metal housing. Enclosed starters provide additional protection for the starter and motor components and improved safety for operators by enclosing live electrical components.

How long can I expect my NEMA magnetic motor starter to last?

The lifespan of a NEMA magnetic motor starter can vary depending on several factors, but a well-built, high-quality starter that is properly maintained and used under normal conditions can last for several years. It's essential to follow the manufacturer's instructions and schedule regular maintenance to extend the life of your starter.

National Motor Starters is proud to carry a large selection of NEMA motor starters used in industrial and commercial applications in North America.

Applications where NEMA enclosed magnetic motor starters are commonly used include: