Hazardous Locations Motors

Here at Dietz, we’re proud to specialize in the supply and servicing of various types of hazardous location motors, designed to optimize workplace safety by containing explosions inside the motor itself. By keeping any flame source¬ — such as sparks, flares, or combustions — contained, these motors help to prevent the spread of fire, as well as prevent further ignition and explosions outside the motor.

Also known as explosion proof motors, hazardous location motors play a critical role in protecting workers from potential injuries and even death.

The Importance of Hazardous Location Motors

In many industrial settings, workers operate equipment in environments that contain gas, vapor, dust, or other combustible elements. If an explosion was to occur within a machine’s motor in this type of setting, the initial explosion could ignite elements in the air, creating a much bigger explosion and putting workers’ lives at risk.

For this reason, explosion proof motors play an extremely important role in protecting employees and the environments in which they work by containing any possible explosions and also preventing larger ones from occurring. Hazardous location motors also protect company equipment and facilities as a whole, ensuring machinery is not damaged or ruined. Today, many government regulations and workers’ rights advocacy groups require that motors meet certain standards.

At Dietz, we have years of experience supplying motors that meet the requirements set forth by the National Fire Protection Association (NFPA), and we are certified by several leading safety organizations, including UL, FM, and the Canadian Standards Association (CSA).

We remain committed to meeting both domestic and international standards, as set forth by UL, CSA, ATEX, and the International Electrotechnical Commission System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres (IECEx).

Applications and Classifications for Hazardous Location Motors

Dietz offers a variety of different motors to fit different settings and application needs. The ideal motor for a particular facility will depend on the intended use environment and specific application needs. Hazardous location motors are determined to be appropriate for a certain setting based on the physical hazardous materials that may be present there. It’s in this way that motors are classified.

Class I motors are used for settings involving gases, vapors, or liquids, while Class II motors are intended for areas containing dust. Within these classes, there are various groups, labeled A through G, which refer to how an element will react after ignition occurs. These labels are arranged in descending order based on the stringency of specific motor design requirements.

Hazardous locations are also further classified into divisions. In Division I locations, combustible elements are always present or are periodically present during operating hours. In Division II locations, combustible elements are found in operator-handled containers or storage tanks that could spill or leak in the event of equipment failure.

Dietz’s Hazardous Location Motor Options

Dietz offers a wide selection of hazardous location motors to fit diverse application needs. We currently stock explosion proof motors up to 100 horsepower (hp) that fall under the classification of standard National Electrical Manufacturing Association (NEMA) Class I, Group C and D, Division 1 motors.

Working with top manufacturers, we can supply Division 1 motors to locations falling under Class I (gases, vapors), Groups C and D and Class II (combustible dusts), Groups E, F, and G. Additionally, we offer motors that meet the requirements of the National Electric Code NFPA 70 501-(b) 1999 for operation in Class I, Division 2 locations.

In addition to standard explosion proof motors, Dietz can also provide motors that are suitable for use in Class I, Group A and B, Division 1 hazardous locations. These motors are designed to operate in areas in which hydrogen is present (or gases or vapors posing the same degree of danger as hydrogen gas). We can offer these motors in all NEMA frame sizes, ¼-100 hp, in foot and flange mountings. Single-phase motors are available as well.

The expert team at Dietz has years of experience supplying explosion proof motors that will easily meet international standards, as certified by ATEX and IECEx, including EExd Flameproof gas groups IIA, IIB, IIC, Zone 1; ExN Type N Non-Sparking Zone 2; and EExe Increased Safety, Zone 1. We are proud to offer motors in both NEMA and International Electrotechnical Commission frame sizes, which comply with the standards of all European countries in accordance with EN 50 014 and EN 50 018 for explosive groups and temperature classes.

Learn More

At Dietz, we understand the importance of fully protecting your workers, and we are proud to offer a wide selection of hazardous location motor solutions specifically designed to enhance employee safety. We partner with the most trusted manufacturers in the industry to find the right explosion proof motor for our clients, based on specific location, function, and use.

With our demonstrated commitment to quality in everything we do, you can be sure that your employees are in good hands with a motor supplied by Dietz. To learn more about our hazardous location motor offerings, contact us today, or request a quote to discuss options for your unique needs.


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