Grundfos ALR 20/A Ex Instrucciones De Instalación Y Funcionamiento página 10

7.4 Approvals
The product has been tested by Eurofins.
7.4.1 Ex approval standards
Leakage sensor relay ALR 20/A Ex marking
II (2)G [Ex ib Gb] IIC
Leakage sensor AL05 Ex marking
II 2G Ex db ib IIC T4 Gb
IECEx certificate No: IECEx SEV 18.0008X
Standards: IEC 60079-0:2017, IEC 60079-1:2014,
IEC 60079-11:2011
Directive/
Code Description
standard
Marking of explosion
protection
Equipment group according
to the ATEX directive,
II defining the requirements
applicable to the equipment
in this group
Equipment category
ATEX
according to the ATEX
directive, defining the
2
requirements applicable to
the equipment in this
category
Explosive atmospheres
G caused by gases, vapours or
mists
The equipment conforms to
Ex the harmonised European
standard.
Leakage sensor can be part
db of flameproof enclosure
according to EN 60079-1
Intrinsic safety according to
ib
Harmonised
EN 60079-11.
European
Classification of gases, see
standard
IIC EN 60079-0.
Gas group C.
Maximum surface
T4
temperature is 135 °C
Equipment protection level.
Gb This product is suitable for
zone1 or zone 2
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7.5 Nameplate
Fig. 4 Nameplate of ALR 20/A Ex relay
Pos. Description
1 Manufacturer
2 Ex description
3 Type identification
4 Certificate number ATEX/IECEx
8. Servicing the product
The ALR 20/A Ex requires no maintenance. It may
only be cleaned with a dustless cloth.
8.1 Replacing the product
Replace the ALR 20/A Ex in case of a fault.
See section 3. Installing the
WARNING
Electric shock
Death or serious personal injury
- Switch off the power supply before you
start any work on the product.
- Make sure that the power supply cannot
be accidentally switched on.
1
2
3
4
product.