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11 - TECHNICAL SPECIFICATIONS
11.1 - POWER SUPPLY
Rated voltage: according product nameplate;
Voltage tolerance: -10% to +10%;
Frequency: 50/60 Hz (48Hz to 62Hz);
Phase imbalance: ≤3% of the rated phase-to-phase input voltage;
Minimum interval between consecutive starts: 5 minutes.
Maximum 1 connection from power supply cycle per 5 minutes.
11.2 - STANDARDS AND DIRECTIVES
WECM motors comply with the latest versions of the following standards and regulations:
EN 60034-1: Rotating electrical machines - Part 1: Rating and performance
EN 60034-2-1: Rotating electrical machines - Part 2-1: Standard methods for
determining losses and efficiency from tests (excluding machines for traction vehicles)
EN 60034-5: Rotating electrical machines - Part 5: Degrees of protection provided by the
integral design of rotating electrical machines (IP code) – Classification
EN 60034-6: Rotating electrical machines - Part 6: Methods of cooling (IC code)
EN 60034-7: Rotating electrical machines - Part 7: Classification of types of
constructions, mounting arrangements and terminal box position (IM code)
EN 60034-8: Rotating electrical machines - Part 8: Terminal markings and direction of
rotation
EN 60034-9: Rotating electrical machines - Part 9: Noise limits
EN 60034-14: Rotating electrical machines - Part 14: Mechanical vibration of certain
machines with shaft heights 56 mm and higher - measurement, evaluation and limits of
vibration
IEC TS 60034-30-2: Rotating electrical machines - Part 30-2: Efficiency classes of
variable speed AC motors (IE-code)
IEC 60072-1: Dimensions and Output Series for Rotating Electrical Machines Part 1:
Frame Numbers 56 to 400 and Flange Numbers 55 to 1080
EN 60204-1: Safety of machinery - electrical equipment of machines - Part 1: General
requirements
IEC 61800-3: Adjustable speed electrical power drive systems - Part 3: EMC
requirements and specific test methods
IEC 61000-3-2: Electromagnetic compatibility (EMC) - Part 3-2: Limits - Limits for
harmonic current emissions
IEC 61000-3-3: Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of
voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for
equipment with rated current ≤16A per phase and not subject to conditional connection
IEC 61800-5-1:2007: Adjustable speed electrical power drive systems - Part 5-1: Safety
requirements - Electrical, thermal and energy
2017/2102 (amending 2011/65/EU) - RoHS
2014/35/EU - The Low Voltage Directive (LVD)
2014/30/EU - Electromagnetic Compatibility (EMC) Directive
42 | WECM / Emerald eZA Manual
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