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Hazardous Area
Hazardous Area Motors & Resolvers
Automating an industrial process is a complex problem when combustible vapors or dust are present in the work environment.
Two commonly used methods are Explosion Proof (EP) and Purged and Pressurized (PT). Explosion Proof devices are intended to withstand and contain an expected explosion, Purged and Pressurized systems are intended to prevent an explosion from occurring. While Explosion Proof is more widely known the Purged and Pressurized technique is more flexible and universally recognized.
The National Fire Protection Association publishes “Purged and Pressurized Enclosures for Electrical Equipment in Hazardous Locations“, (NFPA496), which describes the application of positive pressure with dry air or nitrogen to convert the interior of a motor to a non-hazardous area. A copy of the standard is available from the NFPA, (call 800/344-3555). Additional information is included in the National Electric Code, also written by the NFPA.
For applications and information, the following article may be of interest:
Using Purge and Pressurization to Prevent Explosions
Note:
Empire Magnetics makes no claim as to the suitability of pressurized motors for any particular application. These products are not rated or warranted as Explosion Proof Motors, nor does Empire Magnetics assume any liability for their use in proximity to volatile materials. Responsibility for motor use lies solely with the user.
Each unit includes a ten foot cable. Cables up to 100 feet in length may be ordered. NPT cable penetration allows connection of conduit. Use of pressurized conduit is recommended. Motors are otherwise supplied with air fittings.
Hazardous Area Stepper Motors
Stepper Motors
Empire Magnetics’ PT Series Hazardous Area Step Motors are sealed and equipped with air fittings for pressurization. With an optional temperature sensor, PT Hazardous Area Step Motors can be easily designed into a system which meets NFPA requirements for Class I, Class II and Class III hazardous locations.
Hazardous Area Rotor Nut Motors
Rotor Nut Motors
Motors are typically made in groups or families, the families are identified by the outer diameter or size of the square, these references are called frame sizes. In the American system, a 23 frame is a nominal 2.3 inches in diameter. For motors less than one inch in diameter, the reference is typically known as a size.
Hazardous Area Stand Alone Resolvers
Stand Alone Resolvers
EMR 57 Stand Alone Resolver
Hazardous Area Brushed DC Motors
Brushed DC Motors
Explosion-proof PMDC motors allow safe operation in potentially explosive environments. These motors can be used in specific applications where vapors, gases or dust particles mix and form flammable or explosive environments covered by the classifications listed below.
Empire Magnetics’ Stepper and Brushless Servo Motors are sealed and equipped with air fittings for pressurization. With an optional temperature sensor, these Hazardous area motors can be easily designed into a system that meets NFPA requirements for Class I, Class II and Class III hazardous locations. In a typical installation – such as spray painting, printing, flour mills, fuel processing, alcohol production, chemical processing or rocket fuel machining – the motor is remotely located in a hazardous area.
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Learn about Hazardous Area Motor Applications
Typical Applications:
- Spray painting
- Flour mills
- Fuel processing
- Alcohol production
- Rocket fuel machining
- View Explosive Hazards Applications
Frequently Asked Questions (FAQ)
About Hazardous Area Motors
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Why Choose Empire Magnetics
Government Projects & Defense Applications
Empire Magnetics has been awarded and completed US Navy contracts in excess of $100,000 as a prime contractor. The Cage code number assigned was OYMU1, CEC code 19665900H. As a subcontractor to RSI/Comsat, SAIC, Lockheed Martin, Westinghouse, General Electric and other prime contractors for the US Government, contracts in excess of $200,000 have been awarded and completed.
Nationwide & International Distributors for Specialty Motors & Complete Motor System Solutions
Empire Magnetics products are distributed by a nationwide and international network of motion control sales professionals. Your local distributor carries the drives and controls, and the accessories needed to build a complete motion control system.