SIEMENS
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Siemens D 83.1 · 2016
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Introduction
General technical specifications
Designs in accordance with standards and specifications
■
Overview
(continued)
The following applies to explosion-proof motors:
Since the requirements of explosion-proof motors comply
with the European standards EN 60079-0, EN 60079-15,
EN 60079-31 and Directive 2014/34/EU (ATEX 95), the
certificates issued by authorized testing agencies (PTB,
DEKRA EXAM, etc.) are accepted by all member states of
the EU. The remaining members of CENELEC, Switzerland
in particular, also accept the certificates.
Certifications
Product certifications are to be differentiated in terms of safety-
related certificates and efficiency certificates. Since 2011, it has
been obligatory for low-voltage motors with power ratings in the
range of 0.75 to 375 kW (2-, 4- and 6-pole) to be classified in
accordance with the IEC 60034-30-1 efficiency standard
and to be marked with the corresponding IE code (International
Efficiency IE1, IE2 or IE3). The efficiency is determined using the
summed losses method in accordance with IEC 60034-2-1.
Energy-saving motors for the European Economic Area in
accordance with EU Directive 640/2009
Since June 2011, all low-voltage motors that fall within the scope
of the EU directive must fulfill the specifications of international
efficiency class IE2.
•
Line voltage
1000 V
•
Line frequency 50 or 50/60 Hz
•
Power range 0.75 to 375 kW
•
Pole number 2-, 4- and 6-pole
•
Continuous duty S1
Since January 2015, the efficiency requirements for motors
within the 7.5 to 375 kW range have increased to IE3, otherwise
IE2 motors must be converter-fed.
This will also apply from January 2017 for 0.75 to < 7.5 kW
motors.
© Siemens AG 2016