European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D210-00-031-IS
Issue 5
12-09-2022
Sheet 2 of 6
3. Marking & Rating Information
The BExH120D Alarm Horns comply with the following standards for
hazardous locations:
3.1 ATEX / IECEx & UKEx Ratings
Standards
EN60079-0:2018/IEC60079-0:2017
(ed.7):
Explosive
Atmospheres - Equipment General Requirements.
EN60079-1:2014/IEC60079-1:2014
(ed.7):
Explosive
Atmospheres - Equipment Protection by Flameproof Enclosures
“d”.
EN60079-31:2014/IEC60079-31:2013
(ed.2):
Explosive
Atmospheres - Equipment Dust Ignition Protection by enclosure
“t”.
Model No:
Rating
BExH120D
Ex db IIC T4 Gb Ta. -50°C to +55°C
Ex db IIB T4 Gb Ta. -50°C to +70°C
Ex tb IIIC T100°C Db Ta. -50°C to +55°C
Ex tb IIIC T115°C Db Ta. -50°C to +70°C
See Product table for electrical ratings of each unit model
Certificate No.
KEMA 99ATEX6312X
IECEx KEM 10.0003X
UL22UKEX2638X
Epsilon x
Equipment Group
and Category:
II 2G
II 2D
CE Marking and
Notified Body No.
2813
UKCA Marking and
Approval Body No.
0518
4. Zones, Gas Group, Category and
Temperature Classification
The units can be installed in locations with the following conditions:
Area Classification Gas
Zone 1
Explosive gas air mixture likely to occur in normal
operation.
Zone 2
Explosive gas air mixture not likely to occur in
normal operation, and if it does, it will only exist for
a short time.
Gas Groupings
Group IIA
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene (up to 55°C ambient)
Temperature Classification for Gas Applications
T1
450
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
Area Classification Dust
Zone 21
Explosive dust air mixture likely to occur in normal
operation.
Zone 22
Explosive dust air mixture not likely to occur in
normal operation, and if it does, it will only exist for
a short time.
Dust Groupings
Group IIIA
Combustible Dusts
Group IIIB
Non-Conductive Dusts
Group IIIC
Conductive Dusts
Equipment Category
2G, 2D
Equipment Protection Level
Gb, Db,
Maximum Surface Temperature for Dust Applications
100°C at +55°C
115°C at +70°C
Ambient Temperature Range
-50°C to +55°C Gas Groups IIA, IIB and IIC
-50°C to +70°C Gas Groups IIA and IIB
-50°C to +70°C Dust Groups IIIA, IIIB and IIIC
IP Rating
IP66/67 to EN/IEC60529 and
IP6X to EN/IEC60079-0, EN/IEC60079-31
The sounder must only be installed by suitably qualified personnel in
accordance with the latest issues of the relevant standards:
EN60079-14 / IEC60079-14: Explosive atmospheres - Electrical
installations design, selection and erection
EN60079-10-1 / IEC60079-10-1: Explosive atmospheres -
Classification of areas. Explosive gas atmospheres
EN60079-10-2 / IEC60079-10-2: Explosive atmospheres -
Classification of areas. Explosive dust atmospheres
The installation of the sounder must also be in accordance with any
local codes that may apply and should only be carried out by a
competent electrical engineer who has the necessary training.
