3-phase induction motors
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IMfinity® 3-phase induction motors IE2 High efficiency & IE3 Premium efficiency and IE4 Super Premium efficiency motors Non IE for current or special use Variable speed and fixed speed Frame size 56 to 450 Power rating 0.09 to 1250 kW

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency This catalogue presents the induction motors of the IMfinity® generation, in all their efficiency classes and construction shapes. IMfinity® motors are designed to reach a very high efficiency, whether supplied directly through mains or controlled by a speed drive. Premium efficiency IMfinity® aluminium frame motors are designed to comply with European and US energy regulations. Many other countries in the world impose minimum efficiency levels for electric motors. Refer to the information presented at the end of the...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency Leroy-Somer - IMfinity® 3-phase induction motors - 5147en-2017.07/g 3

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IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Introduction In this catalogue, Leroy-Somer describes the IMfinity® new generation 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 in the Leroy-Somer range. Other motors, ranging in power from 0.045 to 2200 kW and special construction types, are included in the Leroy-Somer motor programme. NON IE EFFICIENCY IP 55 ALUMINIUM ON MAINS* IE2 IP55 ALUMINIUM ON...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Quality commitment Leroy-Somer’s quality management system is based on: - Control of procedures right from the initial sales offering until delivery to the customer, including design, manufacturing start-up 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...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information 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...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Standards and approvals Reference International standards IEC 60034-1 EN 60034-1 Electrical rotating machines: ratings and operating characteristics Leroy-Somer - IMfinity® 3-phase induction motors - 5147en-2017.07/g 9

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Standards and approvals MAIN PRODUCT MARKINGS WORLDWIDE There are lots of special markings throughout the world. They mainly concern product conformance with current user safety standards in different countries. Some markings or labels only concern energy regulations. The same country can therefore have two markings: one for safety and one for energy. This marking is mandatory throughout the European Economic Community. It means that the product conforms to all the relevant directives. If...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General General information Standards and approvals Note: DIN 748 tolerances do not conform to IEC 60072-1. Leroy-Somer - IMfinity® 3-phase induction motors - 5147en-2017.07/g 11

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Definition of «lndex of protection» (IP) INDEXES OF PROTECTION OF ELECTRICAL EQUIPMENT ENCLOSURES In accordance with IEC 60034-5 - EN 60034-5 (IP) - IEC 62262 (IK) 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. 12 Leroy-Somer - IMfinity® 3-phase induction motors - 5147en-2017.07/g

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Environmental limitations NORMAL OPERATING CONDITIONS ACCORDING TO IEC 60034-1, MOTORS CAN OPERATE IN THE FOLLOWING NORMAL CONDITIONS: • ambient temperature within the range -16°Cto +40°C • altitude less than 1000 m • atmospheric pressure: 1050 hPa (mbar) = (750 mm Hg) POWER CORRECTION FACTOR For operating conditions outside these limits, apply the power correction coefficient shown in the chart on the right while maintaining the thermal reserve, as a function of the altitude and...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General 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 relativeandabsolutehumidity calculation method, on preceding page). The symbols used refer to permutations of components, materials, impregnation methods and finishes (varnish or paint). The protection of the winding is generally...

IMfinity® 3-phase induction motors - IE2 - IE3 - IE4 - Non IE Efficiency General Environment Heaters SPACE HEATERS Severe climatic conditions, e.g. T amb < - 40°C, RH > 95% etc, may require the use of space heaters (fitted to one ortwo winding end coils) which serve to maintain the average temperature of the motor, provide trouble-free starting, and/or eliminate problems caused by condensation (loss of insulation). The heater supply wires are brought out to a terminal block in the motor terminal box. The heaters must be switched off while the motor is running. D.C. SUPPLY INJECTION...