IMfinity® Liquid cooled motors - LC series
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IMfinity® Liquid cooled motors -  LC series 3-phase induction motors IE3 Premium efficiency Variable and fixed speed Frame size 315 to 500 150 to 1500 kW

The LC induction motors in this catalog are designed to achieve very high efficiency levels and operate at variable speed. This catalog contains technical information about motors in the IE3 efficiency class (Premium efficiency) which can be used on an A.C. supply and also on a drive. On request, Nidec Leroy-Somer is able to offer IE4 motor solutions. All the motors in this catalog can be used at variable speed depending on the specified conditions. To be eligible for efficiency class IE3, the water inlet temperature for water-cooled motors must be between 0°C and 32°C.

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors Contents GENERAL TECHNICAL CHARACTERISTICS MECHANICAL CHARACTERISTICS Insulation Class - Temperature Rise and Dimensions of Foot and Flange Mounted IM 2001 Dimensions of Flange Mounted IM 3001 (IM B5) Nidec Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2020.09 / d

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors General Introduction In this catalog, Nidec Leroy-Somer describes high-efficiency liquid-cooled induction motors. These motors have been designed to incorporate the latest European standards, and can satisfy most of industry's demands. They are par excellence the leading products on the Nidec Leroy-Somer liquid-cooled IMfinity® platform. Platform IMfinity® Non-IE Aluminum IP55 Frame size 56 to 225 mm 2, 4 and 6 poles 0.09 to 45 kW IE2 - IE3 Cast iron IP55 Frame size 80 to 450 mm 2, 4 and 6 poles 0.75 to 900 kW IE3 IP23 Frame size 225 to...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors General Quality Assurance Nidec Leroy-Somer's quality management system is based on: - Tight control of procedures right from the initial sales offering through to delivery to the customer, including the design process, manufacturing startup and production. - A total quality policy based on making continuous progress in improving operational procedures, involving all departments in the company in order to give customer satisfaction as regards delivery times, conformity and cost. - Indicators used to monitor process performance. -...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors General Directive and Standards Relating to Motor Efficiency There have been a number of changes to the standards and new standards created in recent years. They mainly concern motor efficiency and their scope includes measurement methods and motor classification. Regulations are gradually being implemented, both nationally and internationally, in many countries in order to promote the use of high-efficiency motors (Europe, USA, Canada, Brazil, Australia, New Zealand, Korea, China, Israel, etc.). The new generation of Premium efficiency...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors General Standards and Approvals LIST OF STANDARDS QUOTED IN THIS DOCUMENT Reference IEC 60034-1 Rotating electrical machines: rating and performance. Rotating electrical machines: methods for determining losses and efficiency from tests (additional losses added as a fixed percentage). Rotating electrical machines: methods for determining losses and efficiency from tests (additional losses added as a measured percentage). Rotating electrical machines: classification of degrees of protection provided by casings of rotating machines....

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors General Standards and Approvals MAIN PRODUCT MARKINGS WORLDWIDE Special markings are in place all over the world. They primarily concern product compliance with safety standards for users in force in countries. Some markings or labels only apply to energy regulations. One country can have two different markings: one for safety and one for energy. This marking is mandatory in the European Economic Community market. It means that the product complies with all relevant directives. If the product does not comply with an applicable directive,...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors Environment Definition of “Index of Protection” (IP) INGRESS PROTECTION OF ELECTRICAL EQUIPMENT ENCLOSURES 2nd number: In 1st number: accordance with IEC 60034-5 - EN 60034-5 (IP) - IEC 62262 (IK) Protection against solid objects Protected against solid objects larger than 50 mm (e.g. accidental contact with the hand) Protected against solid objects larger than 12 mm (e.g. a finger) Protected against rain falling at up to 60° from the vertical Protected against solid objects larger than 1 mm (e.g. thin tools, small wires) Protected...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors Environment Environmental Limitations NORMAL OPERATING CONDITIONS According to IEC 60034-1, motors can operate in the following normal conditions: In temperate climates, relative humidity is generally between 50 and 70%. For the relationship between relative humidity and motor impregnation, especially where humidity and temperature are high, see table on next page. • ambient temperature between -16°C and +40°C Special operating conditions can be discussed on request. The ambient temperature must not be less than +5°C for water-cooled...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors Environment Impregnation and Enhanced Protection NORMAL ATMOSPHERIC PRESSURE (750 MM HG) The selection table below can be used to find the method of manufacture best suited to particular environments in which temperature and relative humidity show large degrees of variation (see relative and absolute humidity calculation method, on preceding page). The winding protection is generally described by the term "tropicalization". For high humidity environments, we recommend that the windings are pre-heated (see next page). Relative humidity...

IMfinity® - LC Liquid-Cooled 3-Phase Induction Motors Environment Heating SPACE HEATERS Severe climatic conditions may require the use of space heaters (fitted to the motor windings) which serve to maintain the average temperature of the motor, provide trouble-free starting, and eliminate problems caused by condensation (loss of insulation). A single-phase A.C. voltage (from 10 to 15% of rated voltage), can be used between 2 phases placed in series. This method can be used on the whole motor range. This function can be performed by a frequency inverter. The heater supply wires are brought...