IEC Brochure Bulletin 1855
8Pages

Industrial and Commercial Duty IEC Motors Five product families delivering a world of opportunity

LEESON Passport Series IEC Motors. There’s a world of opportunity right here at home. Get to know IEC. The global standard. The impact of a global economy on the way we do business is changing more than ever before. At LEESON, we’re proud to offer the Passport Series—electric motor solutions that enable OEMs to deliver products matched to this global standard. Rely on our expertise to help you make the right decisions. The International Electromechanical Commission (IEC) is the global governing body for electric motors. Over its century-plus history, IEC has developed standards that tend to...

Where will you find LEESON Passport Series IEC motors? Industries such as Machine Tool, Textile Machinery, Food and Beverage Processing Equipment, Compressors and Material Handling rely on LEESON IEC motors for global solutions. Nema Code Letters For Locked Rotor KVA/HP CODE Key Factors of IEC Metric Motors Specific considerations must be taken into account when building to IEC specifications including dimensions, nameplate markings, torque and temperature performance, and ingress (IP) protection. Many IEC standards have been nationalized to parallel IEC 60034-1. The broad line of LEESON...

IEC Product Differentiators Conduit Boxes: The IEC standard location is on the top of the motor, with optional left side mounting indicated as F1 or right-side location indicated as F2. Terminal boxes can generally be rotated 4x90 degrees and terminal posts ensure easy lead connection. The NEMA standard location is on the left side of the motor, facing the output shaft is indicated as F1. A right-side location is indicated as F2, and on top of the motor as F0 or F3. Typically, IEC motors will have terminal blocks. Orientation: All references to an IEC configuration are based on looking at...

Connections: IEC motors typically use post- or stud-type terminal blocks, to connect the motor leads to the power leads. Wye Start/Delta Run connections are common in Europe and standard in the industry. In general, 7.5kW ratings and above are Wye/Delta. IEC Motor leads are marked U1, V1, W1 etc. NEMA motor leads are typically marked T1, T2, T3, etc. Foot- and flange-mounted with feet, large flange Mounting Codes: LEESON Passport Series IEC motors will be offered in foot-mounted B3, B3/B5, B3/B14 configurations, as well as vertical shaft-down mounted V5 and V1/V5 configurations. See the...

Mount: IM B3/450 Frame (custom) LEESON Passport Series. Stock standard solutions ready to deliver from locations across the country. IEC Motors Aluminum Frame AC Enclosure Type Cast Iron Frame AC Stainless TENV – TEFC TENV – TEFC 60 Hz (50 Hz derated to next lowest HP) 60 Hz (50 Hz derated to next lowest HP) 60 Hz (50 Hz derated to next lowest HP) Speed Frequency IEC Frame Mounting Flanges Ambient Class F Class B Rise Class F Class B Rise Class F Class B Rise NEMA Design B Breakdown Torque NEMA Design B Breakdown Torque 175–300% IEC Design N Breakdown Torque IEC Design N Breakdown Torque...

The formulas for success. Once you get to know the LEESON IEC motor product line you’ll find a world of applications waiting for these solutions. To know the product is one thing—understanding the technical relationships with NEMA motors is another. We are confident that the formulas below will help you when specifying a LEESON Passport Series IEC motor. Example: HP to kW Motor: 25HP NEMA (25 * 0.746) = 18.7kW Full load torque And horsepower Full Load Torque: FL TRQ = (HP * 5252) / RPM Example: Full Load Torque Motor: 50HP, 1800 RPM (50 * 5252) / 1800 = 145.9 ft-lbs newton meters and foot...

LEESON Electric ©2013 Regal-Beloit Corporation BULLETIN 1855 M/Z-01-13/10,000 Printed in the USA