Motor Nomenclature
Motor Nomenclature
(OP)
Would someone be able to direct me to a site that would describe motor nomenclature.
I want to know what Division and Classes mean. I've looked but can't seem to come up with some good source material.
Thanks
Zoobs
I want to know what Division and Classes mean. I've looked but can't seem to come up with some good source material.
Thanks
Zoobs





RE: Motor Nomenclature
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RE: Motor Nomenclature
See NEC or CEC.
For motor nomenclature in general see the NEMA site. Also check some motor manufacturer site such as the Baldor site.
yours
RE: Motor Nomenclature
About your request in electric motors you could find
Explosion-Proof Motors The motor ambient temperature shall not exceed +400oC. Motors are approved for the classes:
CLASS I (Gases, Vapors)
• Group A - Acetylene
• Group B - Butadiene, ethylene oxide, hydrogen, propylene oxide
• Group C - Acetaldehyde, cyclopropane, diethel ether, ethylene, isoprene
• Group D - Acetone, acrylonitrite, ammonia, benzene, butane, ethylene dichloride, gasoline, hexane, methane, methanol, naphtha, propane, propylene, styrene, toluene, vinyl acetate, vinyl chloride, xylem
CLASS II (Combustible Dusts)
• Group E - Aluminum, magnesium and other metal dusts with similar characteristics.
• Group F - Carbon black, coke or coal dust
• Group G - Flour, starch or grain dust
Regards
Petronila
RE: Motor Nomenclature
Group; defines the hazardous materials (as above).
Division; The exposure e.g., Div 1 means the hazardous material is always present. Div 2 means occasional presence of the hazardous material, like due to equipment failure.