MT339-I
Rev.0.3 08/04/2022
7 - 25
Document classified as: 2 - Company Confidential
3
Suitability of the equipment for the installation place
In the case of use in areas with danger of explosion, it must be verified that the type of equipment
provided is suitable for the classification of the area and any flammable substances present.
The essential safety requirements against the risk of explosion in classified areas are established by
Directive 2014/34 / EU of the European Parliament and of the Council of 26 February 2014 (as regards
equipment) and 1999/92 / EC of 16 December 1999 (as regards the plants).
The criteria for the classification of areas with risk of explosion are given by the EN60079-10 standard.
The technical requirements of electrical systems in classified areas are given by the EN60079-14
standard.
The following table shows the legend of the marking for use in a hazardous area:
II 1 G
Equipment for surface systems with the presence of gas or vapours, category 1 suitable for zone 0
and with redundancy for zones 1 and 2
Ex ia
Intrinsically safe equipment, category ia
IIA
Equipment of group IIA suitable for substances (gases) of groups IIA.
IIB
(Version B only) Group IIB equipment suitable for substances (gases) of groups IIB.
T3
Equipment temperature class (maximum surface temperature)
Ga
Equipment protection level
Conformity marking to applicable European directives
Marking of conformity to 2014/34 / EU directive and related technical standards
0425 ATEX 004371 X
0425
Number of the laboratory that issued the CE certificate
ATEX
Reference directive
004371
Certificate number.
X
indicates that there are particular conditions of use which are indicated in the manual with safety
instructions.
1370
Number of the Notified Body (Bureau Veritas) which carries out the surveillance of the production
system.
Tamb
Ambient operating temperature of the equipment
Equipment with temperature class T3 are also suitable for substances with higher temperature class (T2,
T1)
The following table shows the legend of the marking for use in a safe area as associated equipment.
II (1) G
Associated equipment of category (1), to be installed in a safe area, for surface installations.
[Ex ia Ga]
Associated equipment of category ia with EPL Ga
IIB
Equipment of group IIB suitable for substances (gases) of groups IIB.
Conformity marking to applicable European directives
Marking of conformity to 2014/34 / EU directive and related technical standards
0425 ATEX 004371 X
0425
Number of the laboratory that issued the CE certificate
ATEX
Reference directive
004371
Certificate number.
X
indicates that there are particular conditions of use which are indicated in the manual with
safety instructions.
1370
Number of the Notified Body (Bureau Veritas) which carries out the surveillance of the
production system.
Tamb
Ambient operating temperature of the equipment
