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, 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. All 2, 4 and 6-pole motors, rated 0.75 to 375 kW, offered for sale on the European Union market must be efficiency class IE3 or IE2 and used with a variable...

IMfinity®- LC Liquid-Cooled 3-Phase Induction Motors Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2017.05 / b 3

In this catalog, 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 Leroy-Somer liquid-cooled IMfinity® platform. Liquid-cooled motors are particularly suitable for and are used in applications requiring a low noise level, high output power with IP55 protection, compact dimensions and operation on a drive. Advantages - Motor cooled by a water circuit integrated in the housing (IC71W) - Reduced noise level:...

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. - Corrective actions and advancements with tools such as FMECA, QFD, MAVP, MSP/MSQ and Hoshin type improvement...

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 three-phase induction motors responds to changes in the standards as well as the latest demands of system integrators...

Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2017.05 / b 7

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, it cannot be CE-rated and hence cannot bear the CE mark. USA and Canada: EISA commercial...

Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2017.05 / b 9

Many countries have already implemented energy regulations concerning electric motors. Others are in the process of preparing them. Some regulations require that before they can be offered for sale, products must be registered with the local authorities. In these cases, market surveillance is undertaken before the products are put into use, unlike the EU where thememberstatesare responsible for organizing surveillance on their own territory. The majority of countries requiring registration before products are offered for sale also usually require special product labeling. For Europe, there Is...

INGRESS PROTECTION OF ELECTRICAL EQUIPMENT ENCLOSURES In accordance with IEC 60034-5 - EN 60034-5 (IP) -1 EC 62262 (IK) .5 : Machine protected against jets of water from all directions from hoses at 3 m distance with a flow rate of 12.5 l/min at 0.3 bar. The test will last for 3 minutes. Test result: no damage from water projected onto the machine. Leroy-Somer - Liquid-Cooled Motors - LC Series - 5370 en - 2017.05 / b 11

NORMAL OPERATING CONDITIONS According to IEC 60034-1, motors can operate in the following normal conditions: • ambient temperature between -16°C and +40°C • altitude less than 1000 m • atmospheric pressure: 1050 hPa (mbar) = (750 mm Hg) The ambient temperature must not be less than +5°C for water-cooled motors. If this is the case, antifreeze must be added to the water for temperatures less than +5°C. Special operating conditions can be discussed on request. NORMAL STORAGE CONDITIONS The storage area must be closed and covered, protected against mold, vapors and other harsh, corrosive (chemical) substances....

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). Tropicalization refers to protection of the motor's electrical parts (rotor, stator and coil end turns). It is available as an...

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). The heater supply wires are brought out to a terminal block in the motor's auxiliary terminal box. A.C. INJECTION HEATING 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....