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FKI Rotating Machines

A.C.MOTORS EEx-d

Induction motors appear to be all the same.

Induction motors
appearto be the same
Exactness of machining
Efficient protection
Accurate dynamic balance

Standards and Specification

Classes of temperature

	CEI 31-8 pubbl. 459-CENELEC - EN 50014
Classes of temperature	T1	T2	T3	T4	T5	T6
Max superficial temperature	450^◦C	300^◦C	200^◦C	135^◦C	100^◦C	85^◦C

ASYNCHRONOUS MOTORS
L.V. Range: 0.12 to 2800 kW; from 2 to 30 poles
M.V. Range : 110 to 2000 kW; from 2 to 30 poles

EXPLOSION PROOF MOTORS
L.V. Range: 0.12 to 560 kW; from 2 to 20 poles
M.V.Range: 110 to 500 kW; from 2 to 12 poles

D.C.MOTORS
INDUSTRIAL USE
L.V.Range: 0.5 to 115 kW;
FORK LIFT TRUCK
L.V.Range : 3 to 30 kW;

VACON Frequency Converters
Power Range : 0.75 to 1500 kW
Input voltage. 200 to 690V.

Three Phase Squirrel Cage Induction Motors
TECHNICAL CHARACTERISTICS

Rated outputs and frame sizes in accordance with IEC 60072-1 standards, where applicable.
Continuous duty (S1) with sufficient thermal margins, to withstand short overloads.
Motors designed according to the rules given by IEC 60034 group and the EC's harmonised ones.
Protection degree IP 55
Insulation class F
Insulation class F
Temperature rise compatible with class B
Maximum ambient temperature +40^◦C
Installation≤ 1000 m a.s.l.
Normal noise level of less than 80db(A) for 4 or more poles

ENERGY SAVING

MarelliMotori have undersigned the voluntary agreement with the CEMEP who, in co-operation with the European Commission, designated energy efficiency classes for three phase squirrel cage induction motors, TEFC, 1.1 to 90kW, 2 and 4 pole, rated for 400V, 50Hz, S1 duty in standard design. These classes are identified as eff1, eff2 and eff3 in descending order. The replacement of standard motors with these new designs will lead to the following benefits :

Increased lifetime of the motor and its bearings, due to reduced operating temperatures
Better capability of the motor to run under voltage variations, poor Voltage and current wave shapes.
Increased resistance to handle overload conditions

High Efficiency Motors

Efficiency Classification
This agreement, undersigned by MarelliMotori, establishes a classification scheme which, based on easy to read information, will ensure users of the correct selection of the motors.

Motors covered by this classification
Three phase squirrel cage induction motors, TEFC, 1.1 to 90 kW,2 and 4 pole, rated for 400V, 50 Hz, S1 duty class, in standard design.
Efficiency classes
Essentially there will be three classes,
identified as eff1, eff2 and eff3

Efficiency Information
In the catalogue the efficiency, expressed as a percentage at full In the catalogue the efficiency, expressed as a percentage at full load and 3/4 load, will be specified together with a band label.
Motor Labeling
A label giving information about the efficiency class will appear on the motor rating plate.

An accurate calculation of the energy savings associated with the use of a high efficiency motor is available by consulting the database EURODEEM, developed by the European Commission.