_______________________________________________________________________________________________________________________________
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
Tel: +44 (0)208 743 8880
www.e-2-s.com
Fax: +44 (0)208 740 4200
Document No.D156-00-501-IS
Issue 1
11-12-15
Sheet 1 of 3
INSTRUCTION MANUAL (ATEX / IECEx)
GNExJ
2
Flameproof Junction Box
For use in Flamma
ble Gas and Dust Atmospheres
1)
Introduction
The GNExJ2 is a flameproof junction box which is certified to
meet the requirements of the ATEX directive 94/9/EC and the
IECEx scheme. The junction box can be used in hazardous
areas where potentially flammable gas and dust atmospheres
may be present. The GNExJ2 can be used in Zone 1 and
Zone 2 areas with gases in groups IIA, IIB and IIC and
Temperature Classifications of T1, T2, T3, T4, T5 and T6.
The unit can be used in Zone 21 and Zone 22 with dusts in
groups IIIA, IIIB and IIIC and Temperature Classifications of
T1, T2, T3, T4, T5 and T6.
2)
Marking
All units have a rating label, which carries the following
important information:-
Unit Type No. GNExJ2
Max. Voltage:
60Vdc / 260Vac 50/60Hz
Max Power Dissipation: 5W
Codes:
Ex db IIC Gb T6 Ta -50°C to +70°C
Ex tb IIIC Db T80°C Ta -50°C to +70°C
Certificate No.
DEMKO 15ATEX1448X
IECEx UL15.0003X
“Warnings”
POTENTIAL ELECTROSTATIC CHARGING HAZARD
DO NOT OPEN WHEN AN EXPLOSIVE
ATMOSPHERE IS PRESENT
ALL ENTRIES M20 X 1.5
IF TEMPERATURE EXCEEDS 70ºC AT ENTRY OR 80ºC AT
BRANCHING POINT USE SUITABLE RATED CABLE AND CABLE
GLANDS
3)
Type Approval Standards
The junction box has an EC Type examination certificate
issued by UL and have been approved to the following
standards:-
EN60079-0:2012 / IEC60079-0:2011 (Ed 6): Explosive Atmospheres
- Equipment. General requirements
EN60079-1:2014 / IEC60079-1:2014 (Ed 7): Explosive Atmospheres
- Equipment protection by flameproof enclosures "d"
BS EN 60079-31:2014 / IEC 60079-31:2013 (Ed 2): Explosive
Atmospheres - Equipment dust ignition protection by enclosure "t"
4)
Installation Requirements
The junction box 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 units 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.
The GNExJ2 is not intended for directly supporting live parts.
All conductors must be suitably insulated and secured
against loosening.
The Junction Box may be fitted with terminal blocks or active
modules up to a power consumption of 5W. Any module fitted
must be secured to the mounting bosses in the base of the
junction box and must maintain a minimum gap of 10mm to
all walls of the enclosure.
5)
Zones, Gas Group, Category, IP Rating 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,
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
Temperature Classification:
T1
450
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
T5
100
o
C
T6
85
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, and
if it does, it will only exist for a short time.
Dust Groupings:
Group IIIA
Combustible Flyings
Group IIIB
Non-conductive Dust
Group IIIC
Conductive Dust
IP Rating:
IP6X to EN/IEC60079-0 and IP66 to EN/IEC60529
0518
II 2G
II 2D
Epsilon x
Equipment Group and
Category:
CE Marking
Notified Body No.
