A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.
Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
Electric Motors
: Hazardous Locations
: Three-Phase : Explosion Proof - High Efficiency
Catalog Number: 12509XP3G504
WEG id: 11110604
Description WEG Explosion Proof motors are suitable for applications requiring UL or CSA certification for hazardous locations. Thermally protected with thermostats, all motors manufactured are submitted to hydrostatic as well as other routine testing at the factory to ensure compliance to the required specifications.
WEG High Efficiency Explosion Proof motors are specifically designed to meet or exceed all EPAct requirements for energy efficiency.
Applications
Petroleum and gasoline
Flour / feed mills
Grain elevators
Fans
Pumps
Blowers
Material handling equipment
Other applications requiring motors UL or CSA listed for hazardous locations
Standard Features
Efficiency Certification number CC029A according to US Department of Energy Regulations
Three-phase, 60Hz
Voltage: 208-230/460, 460 or 575V
143T up to 586/7 cast iron frame
Squirrel cage rotor / Aluminum die cast
Totally Enclosed Fan Cooled - TEFC (IP55)
Ball bearings are supplied as standard
Cast iron frame
Class 'F' insulation
Temperature rise: Class 'B' (80ºC)
Service factor: 1.15
Inverter Duty as per CSA Standard (LR50962)
NEMA dimensions
NEMA ratings design 'B'
Continuous Duty (S1)
104ºF (40ºC) ambient temperature
Altitude: 3300 ft (1000 m)
1045 Carbon Steel Shaft for frames up to 365T
4140 steel shaft for motors 404T and above. (3600 RPM motors supplied with 1045)
Class 'F' insulation for all frames
Class 'H' impregnation resin
F1 mount
Stainless steel nameplate
Paint: Synthetic Enamel alkyd resin base (exceeds ASTM B117 salt spray test)
Color: RAL 5009
NPT threaded terminal box
Non-sparking fan
Thermostats
Optional Features - Call Dealers for information on price and availability of optional features
Special Voltages and frequency
Stainless steel shaft
C and D flanges
F2 mount
NOTES Motors are tested according to IEEE 112 std. - method ?B? or C390 CSA
All WEG motors are energy efficiency verified by UL in addition to the DOE.
CSA and UL approved
ALSO ENERGY VERIFIED CSA C390-93(+)
CSA approved - File LR 50962 Division I, class I, groups C and D Division I, class II, groups F and G
UL approved - File E 87848 Temperature code T4 Frame 143T up to 326T Division I, class I, groups C and D Division I, class II, grops F and G
Frame 364T up to 505 Temperature code T3C Division I, class I, groups C and D Division I, class II, groups F and G (for group G, Service Factor 1.0)
Frame 586/7 Temperature code T3C Division I, class I, groups C and D Division I, class II, group F
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