WEGeuro - Indústria Eléctrica, S.A. Português - English
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1.7 The WEG Flameproof Motors in its standard execution are supplied with flameproof
terminal boxes “Ex db”. As optional can be supplied with Increase Safety terminal
boxes “Ex eb”. In this case the description code for the motor protection is “Ex db eb”.
1.8 “Ex db” motors are manufactured according to the Standards EN 60079-
0:2012/A11:2013, IEC 60079-0:2011 and EN 60079-1:2014, IEC 60079-1:2014. “Ex
db eb” motors are according to the same standards and EN 60079-7:2015, IEC 60079-
7:2015. The motors with equipment Ex i are also according to EN 60079-11:2012 and
IEC 60079-11:2011. The gas group is IIB, IIC or I depending on motor type.
1.9 The instalation should be in accordance to the standards EN 60079-14:2014, IEC
60079-14:2013, EN 60079-25:2010/AC:2013 and IEC 60079-25:2010 for intrinsic
safety.
1.10 Flameproof joints of WEG motors can have values more restricted than the
minimum values indicated in the standards EN/IEC 60079-1. The authorized repair
shops must contact WEG After Sales Services every time they need detailed
information concerning flameproof joints values. For using in group I (mines) the user
will take into consideration that this equipment underwent only a shock corresponding
to an energy of a low risk.
1.11 Motors with IP65 or IP66 protection degree, designed to be used on combustible
dust environments (Ex tb IIIC T125ºC or T135ºC Db IP6X), are additionally in
accordance with EN 60079-31:2014 and IEC 60079-31:2013.
1.12 The motors may be equipped with adapters mounted on top of the frames or on
other adapters, which allow the mounting of additional terminal boxes in different
positions. The adapters may have flameproof protection “Ex db” or increased safety
protection “Ex eb” and allow the mounting of flameproof terminal box “Ex db” or
increased safety terminal boxes “Ex eb”.
In the case of motors equipped with phase segregated or phase insulated terminal
boxes with increased safety protection “Ex eb”, the mounting is made on an adapter
with increased safety protection “Ex eb” and can be used up to a minimal ambient
temperature of -20°C.
1.13 When the motors are equipped with intrinsic safety components “Ex i” for winding
and/or bearing protection and for detections and/or control of vibrations, their circuits
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