Samson 3969, Mounting And Operating Instructions

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EB 3969 EN 45
EX 3969 EN
3 of 3
EXPLOSION PROTECTION INSTRUCTIONS · TYPE 3969
Version 2019-04-30
2 Explosion protection data
ATEX
: II 2 G Ex ia IIC T6 Gb
II 2 D Ex ia IIIC T85°C Db
II 3 G Ex ec IIC T6 Gc
II 2 D Ex tb IIIC T 85°C
IECEx : Ex ia IIC T6 Gb
Ex ia IIIC T85°C Db
Ex ec IIC T6 Gc
Ex tb IIIC T 85°C Db
2.1 Signal current circuit
Ter/–
Type of protection: Ex ia IIC/IIIC Ex ec IIC/IIIC
U
N
14 to 24 V
2.2 Temperatures
2.2.1 Intrinsic safety Ex ia IIC/Ex ec IIC
Temperature class Permissible ambient temperature Ta
T4 –45 °C ≤ Ta ≤ +80 °C
T6 –45 °C ≤ Ta ≤ +70 °C
2.2.2 Intrinsic safety Ex ia IIIC
Maximum surface temperature Permissible ambient temperature Ta
T 85 °C –45 °C ≤ Ta ≤ +70 °C
2.2.3 Intrinsic safety Ex tb IIIC
Maximum surface temperature Permissible ambient temperature Ta
T 85 °C –45 °C ≤ Ta ≤ +80 °C
The associated certificates can be found on our website (www.samson.de > Products & Applica-
tions > Product selector).
Note