location, having a tool secured cover/door, where a
minimum protection of at least IP54 is provided.
Special Conditions for Hazardous Locations Use in
Europe and Internationally
The NI 9476 with spring terminal has been evaluated as Ex nA
IIC T4 Gc equipment under DEMKO 12 ATEX 1202658X and is
IECEx UL 14.0089X certified. The NI 9476 with DSUB has been
evaluated as Ex nA IIC T4 Gc equipment under DEMKO 03
ATEX 0324020X and is IECEx UL 14.0089X certified. Each
NI 9476 is marked II 3G and is suitable for use in Zone 2
hazardous locations, in ambient temperatures of -40 °C ≤ Ta ≤
70 °C. If you are using the NI 9476 in Gas Group IIC hazardous
locations, you must use the device in an NI chassis that has been
evaluated as Ex nC IIC T4, Ex IIC T4, Ex nA IIC T4, or Ex nL
IIC T4 equipment.
Caution Transient protection shall be provided that is
set at a level not exceeding 140% of the peak rated
voltage value of 85 V at the supply terminals to the
equipment.
8 | ni.com | NI 9476 Getting Started Guide
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