Explosion-Proof
AC Motors - Three Phase, Cast Iron Frame, For Hazardous Locations|
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FOR HAZARDOUS LOCATIONS
THREE PHASE • CAST IRON FRAME
Underwriters Laboratories and Canadian Standards Association Listed
General Specifications:
These explosion
proof motors are designed and approved for application in hazardous environments
having certain explosive gases or materials present.
Features:
Rugged mechanical
construction meeting all requirements for safety. UL and CSA listed.
Double shielded, pre-lubricated ball bearings are standard. All motors
have inherent automatic overload protection. NEMA 1.0 Service Factor except
as noted.
Explosion-proof conduit box included at no extra cost.
Capacitors on single phase designs are mounted inside the motor frame.
Application Notes:
These
motors must be applied in accordance with the National Electric Code,
Article #500. A partial listing of explosive agents is noted below.
Consult NFPA Publication 497M for a complete listing. No LEESON motors
are listed for Class I, Group A or B. Please note subheads above each
column for qualifications of LEESON motors.
Class I
Group A: Acetylene
Group B: Butadiene, ethylene oxide, hydrogen, propylene oxide,
manufactured gases containing more than 30% hydrogen by volume.
Group C: Acetaldehyde, cyclopropane, diethyl ether, ethylene.
Group D: Acetone, acrylonitrile, ammonia, benzene, butane, ethanol,
ethylene dichloride, gasoline, hexane, isoprene, methane (natural gas),
methanol, naphtha, propane, propylene, styrene, toluene, vinyl acetate,
vinyl chloride, xylene.
Class II
Group E: Aluminum, magnesium an other metal dusts with similar
characteristics.
Group F: Carbon black, coke or coal dust.
Group G: Flour, starch or grain dust.
ALL EPACT EXPLOSION-PROOF MOTORS HAVE 1.15 SERVICE FACTOR, T3B TEMPERATURE CODE; AND NEC-SIZE CONDUIT BOX AS STANDARD
CLASS I, GROUPS C & D - CLASS II, GROUPS F & G • W/ CONDUIT BOX
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3
to 10 HP
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15
to 30 HP
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40
to 100 HP
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125
to 250 HP
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