Koffler Electrical Apparatus Repair & Electric Motor Sales

 

Search All Motors:
GO
Use a (*) to broaden your search results

View Koffler Electrical Videos

EASA Logo

ISES Logo

IEEE Logo

 

View RFQs  | Shipping 
 | Tax 
 | Terms
 Request for Quote 0 Items
All Categories > Products > AC Motors > Explosion-Proof Motors > Leeson C Face with Rigid Base Three Phase Cast Iron Frame Explosion-Proof Motors > Item # G850592  
Request Quote

Item # G850592, Leeson C Face with Rigid Base Three Phase Cast Iron Frame Explosion-Proof Motors


20 HP, 3450 RPM, NEMA Frame 256TC, 230/460 V,
  • Three Phase
  • C Face with Base
  • Division I, Division II, Class I, Groups C & D-Class II Groups F & G with Conduit Box
  • EPACT motors

    Explosion-proof For Hazardous Locations
    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.

    Application Notes:
    These motors must be applied in accordance with the National Electrical Code, Article #500. A partial listing of explosive agents is noted below. Consult NFPA Publication 497M for a complete listing. Please note subheads above each column for qualifications of LEESON motors.





Specifications  · Technical Details  · Features

Specifications

Base

C Face with Rigid Base

Phase

Three

HP

20

RPM 60 Hz

3450

Voltage

230 V
460
V

FL Amps 460 V

23.0

% FL Eff.

90.2

NEMA Frame

256TC

Disc. Sym.

C

C Dimension

25.27 in

Approx. Weight

263 lbs

Frame Construction

Cast Iron

Manufacturer



Technical Details
    No LEESON motors are listed for Class I, Group A or B.
    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 and other metal dusts with similar characteristics.
    Group F: Carbon black, coke or coal dust.
    Group G: Flour, starch or grain dust.




Features
  • Explosion-proof motors are Class I, Groups C & D-Class II, Groups F & G.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.
  • NEMA1.0 Service Factor except as noted.
  • Explosion-proof conduit box included at no extra cost.
  • Division I areas are environments where a hazard is present continuously or would be subject to fire or explosion if the hazard was present as a result of an accident or uncommon occurrence.
  • Division II areas are environments where the threat of fire or explosion is not normally present and not likely to result in the event of an abnormal occurrence.




    Download PDF Download PDF   
    border="0" Printable Page  
    Email Email This Page  
    Save To Favorites Save To Favorites
  

Request Quote