Three Phase Squirrel Cage Induction Motors A5 - B5 SERIES 160 - 500 SIZES LOW AND HIGH VOLTAGE INDUSTRIAL APPLICATIONS

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PRODUCT CODE STRUCTURE 2 CE MARK DECLARATION OF CONFORMITY 4 BALANCING AND VIBRATION GRADES 11 AXIAL ROTOR POSITION 13 BEARINGS FOR STANDARD MOTORS 13 DRAWINGS BEARINGS FOR STANDARD MOTORS 14 AXIAL FORCES - HORIZONTAL MOUNTING 15 AXIAL FORCES - VERTICAL MOUNTING 16 CONSTRUCTION FOR HIGH RADIAL LOADS 18 TERMINAL BOXAND CABLE ENTRY 22 TERMINAL BOXES - DIMENSIONS 22 MOTORS FOR VARIABLE SPEED APPLICATIONS 29 ROUTINE, TYPE AND SPECIAL TESTS 30 TOLERANCES FOR ELECTROMECHANICAL CHARACTERISTICS 30 DATA TABLES - LOW VOLTAGE 32 DATA TABLES - MEDIUM VOLTAGE 36 DATA TABLES - HIGH VOLTAGE 38 THREADED HOLES...

Product Code Structure MarelliMotori products are identified by a 13-digit code shown on the nameplate. The code is constructed as follows. Single Polarity Industrial Applications Double Polarity Industrial Applications Single Polarity Self Ventilated for Inverter Application Single Polarity Marine Applications Design Revision High Voltage Single Polarity Forced Ventilation for Inverter Application Option Code See last Page Double Polarity Code 44 Frame Size [mm] 160-280 Polarity (Poles) Single Special Mounting

RATING PLATES All identification plates are laser engraved with data as shown in the following standard typologies. Motors subject to the efficiency classification in accordance to IEC 60034-30 and the commission regulation (EC) No 640/2009, have the correspondent efficiency level and the nominal efficiency at full, 3/4 and 2/4 rated load. From 160 to 315 frame size: High efficiency motors IE2 Motors not IE2 ^^^^ MADE IN ITALY - ARZIGNANO (VI) AD OGNI ASSIEM. RIPRIST. IL GRASSO SUI GIJNTI - APPLY GREASE ON THE MATING SURFACES BEFORE REASSEMBLING From 355 frame size and above: High efficiency...

STANDARDS TITLE International Standard Standard methods for determining losses and efficiency from tests Degrees of protection provided by the integral design of rotating electrical machines (IP code) - Classification Methods of cooling (IC Code) Classification of types of construction, mounting arrangements and terminal box position (IM Code) Terminal markings and direction of rotation Noise limits Thermal protection Starting performance of single-speed three-phase cage induction motors Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and...

ENERGY SAVING The International Electrotechnical Commission (IEC), in order to harmonize the energy consumption regulations aimed to reduce the CO2 emissions and the impact of industrial operations on the environment, has established the standard IEC 60034-30:2008 which defines energy efficiency classes for singlespeed, three-phase, 50 Hz and 60 Hz induction motors. To that regard, the European Community (EC) has recently passed the regulation EC N° 640/2009 which is essentially based on the IEC 60034-30 and requires all the EU countries to conform themselves to the new efficiency standards....

Scope The efficiency classes specified in the IEC 60034-30 are relevant to single speed, three-phase, 50Hz and 60Hz induction motors with: • 2, 4 or 6 pole • rated output from 0,75 to 375kW; • rated voltage UN up to 1000V; • duty type S1 (continuous duty) or S3 (intermittent periodic duty) with a rated cyclic duration factor of 80% or higher; • direct on-line starting. The following motors are excluded from the IEC 60034-30: • motors made solely for converter operation; • motors completely integrated into a machine (for example, pump, fan or compressor) that cannot be tested separately from the...

TECHNICAL CHARACTERISTICS Continuous duty S1: The type of duty is indicated by the symbols S1…S9 as defined in standard IEC 60034-1. Duty type S1 refers to operation at a constant load maintained for sufficient time to allow the machine to reach thermal equilibrium. Degree of Protection IP55 The motors in standard execution have IP55 protection degree, where: 5 (first number in code): Ingress of dust is not totally prevented but dust does not enter in sufficient quantity to interfere with satisfactory operation of the machine. 5 (second number in code): Water projected against the machine from...

Minimum Thickness Two component paint formulated with solid epoxy resins modified with vinyl polyamide catalysers Typical Marine Application Base paint: epoxy vinyl paint Final Paint: polyacrilic paint For aggressive atmosphere and environment classification C5I Base paint: epoxy vinyl paint + Final Paint: polyacrilic paint Base Painting Finishing paint Internal surfaces All internal surfaces of motors from 280 frame size are tropicalised with an insulating enamel to prevent motor corrosion due to humidity and agressive substances. 107 Tropicalisation can also be applied to motors from 160 to...

MOUNTINGS AND POSITIONS Mountings and positions are defined by the following codes according to IEC 60034-7: Code I (Simplified) IM _ Mounting code Type of shaft extension (1-9) Mounting arrangement Frame Size Frame Size 1) Motors with feet 2) Flanged Motor: unthreaded through holes • Standard Not applicable X Consult Marelli Motori For other mounting arrangements refer to IEC 60034-7 The motors should be installed on a rigid foundation with negligible structural vibrations. MarelliMotori

Cooling The cooling method designation is given by IC (International Cooling) code, according to IEC 60034-6. The designation system is made up as follows, using the example IC 411 for simplified designation: IC 1 Circulation mode for secondary fluid (1: self-circulating) Circulation method for primary fluid (1: self-circulating) Circuit arrangement (4: machine surface-cooled) International cooling Motors in standard execution are supplied with IC 411 cooling system, cooling is achieved by a bi-directional fan mounted at the NDE of the motor, inside a fan cover which acts as a safety guard. The...