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Physikalisch-Technische Bundesanstalt
Braunschweig und Berlin
to the EC Type Examination Certificate PTB 98 ATEX 2072
Equipment:
Marking:
Manufacturer:
Address:
Description of the additions and modifications
The Model 3776-1 Limit Switch is permitted to be manufactured and operated in future also in
compliance with the documents specified in the test report.
The modification relate to the internal and external design.
The correlation between the equipment versions, temperature classification, permissible ambient
temperature ranges and electrical data is shown in the table below
Versions 3776-11..3776-12. and 3776 14.
Temperature
class
T6
T5
T4
T6
T5
T4
This EC Type Examination Certificate may only be reproduced in its entirety and without any change, schedule included. Extracts or changes shall
Physikalisch Technische Bundesanstalt - Bundesallee 100 -D - 38116 Braunschweig
T R A N S L A T I O N
A D D E N D U M N o.: 2
in compliance with Directive 94/9/EC Annex III Clause 6
Model 3776-1 Limit Switch
II 2G EEx ia IIC T6
SAMSON AG
Weismüllerstr. 3, D-60314 Frankfurt, Germany
Permissible ambient
temperature range
+45 °C
-45 °C ... +60 °C
+80 °C
+65 °C
-45°C ... +80 °C
+100 °C
EC Type examination Certificates without signature and seal are invalid.
require the prior approval of the Physikalisch-Technische Bundesanstalt.
Ui
16 V
52 mA
16 V
25 mA
– 41 –
Ii
Pi
169 mW
64 mW
Ptb07Add-2.doc
EB 3776 ES
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