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About this document
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Building Technologies A6V10367521_h_en_--
Fire Safety 2015-02-02
Device labeling
Device type OOH740-A9-Ex
Manufacturer
Siemens Switzerland Ltd.
Infrastructure & Cities Sector
Building Technologies Division
International Headquarters
Gubelstrasse 22
CH-6301 Zug
Tel. +41 41 724-2424
www.siemens.com/buildingtechnologies
Year of construction 2014 or later
IECEx scheme Ex ia IIC T4 Ga, Ta = -35…70 °C
Directive 94/9/EC
(ATEX Directive)
II 1 G Ex ia IIC T4 Ga, Ta = -35…70 °C
When used in atmospheres at risk of gas explosion:
The automatic fire detector OOH740-A9-Ex must be protected against electrostatic
charging, along with all its accessory parts.
Intended use
The automatic fire detector OOH740-A9-Ex may only be used as follows:
l On an C-NET-Ex detector line in a fire detection installation FS720 or in
collective mode.
l On the detector line the automatic fire detector OOH740-A9-Ex must be
installed downstream of a line adapter (Ex) approved in accordance with
national and international regulations or a safety barrier.
– For the C-NET-Ex detector line, this is line adapter (Ex) FDCL221-Ex.
– For a collective detector line, these are safety barriers SB2 or SB3.
Please note the documents listed in the chapter 'Applicable docum
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