Iec Ex Motor; Nameplate Data For Safety Aspects; Atex Motor - WEG Ex d Manual De Instalación, Operación Y Mantenimiento

2.1.2 IEC Ex MOTOR

The essential "safety Ex" requirements for the classified hazardous areas comply with International
Standards:
- IEC 60079 series
The classification criteria, for hazardous areas, are reported by IEC 60079-10 Standards.
Technical requirements of the electric motor installation, in the classified areas, are reported by IEC 60079-
14 Standard.
Standards for Type of protection:
- IEC 60079-0 and IEC 60079-1 for "Ex d"
- IEC 60079-0, IEC 60079-1 and IEC 60079-7 for "Ex de"

2.2 NAMEPLATE DATA FOR SAFETY ASPECTS

Ex d
Ex de
IIb
Temperature class for the motor (maximum surface temperature), according to the equivalent
T4
Notes:
- Motors of Zone 1 are also suitable for Zone 2.
- Motors of group IIB are suitable also for group IIA.
- Motors of a given class of temperature are suitable also for combustible materials of a greater class of
temperature (example, T4 motors are suitable for material of class T3, T2, T1).
- When the certificate number is followed by an "x", it means that in the certificate are mentioned some
special operating conditions to be respected for the safety-guarantee.
- The normal range of ambient temperature for Ex motors, is: -20°C to +40°C (if motors are used on
different ambient temperatures, these must be specified in the purchase order and also included on the
motor nameplate).
- Some components need to be changed when the ambient temperature is under -20°C. Please contact
the manufacturer to verify the special characteristics.

2.2.1 ATEX MOTOR

II 2 G Motor for surface industry, with the presence of gas or vapors of category 2, suitable for zone 1.
ab xx AB: Laboratory name (authority), that has issued the ATEX certificate.
aTEX
xx: year the certificate has been issued.
yyy yyy: certificate number.
CEx x
Only for Europe: The number of the notified authority that has made the notification of the
x x "production quality system".
2.2.2 IEC Ex MOTOR
IECEx AB: Laboratory name (authority), that has issued the IEC certificate.
ab xx
xx: year the certificate has been issued.
yyy yyy: certificate number.
- English -
Explosion proof motors.
Explosion proof motors with increased safety terminal box.
Enclosure of group IIB, suitable for materials (gas) of group IIB.
temperature class of the combustible material.
INDUCTION MOTORS FOR HAZARDOUS AREAS | 5