USB Barrier Exi for connecting intrinsically safe input devices of the POLARIS and POLARIS II series to a standard PC.The USB Barrier Exi is installed in the safe area or may also be installed as associated equipment in Zone 2.
Marking
ATEX:Ex II 3 (2)G Ex ec [ib IIC or IIB Gb] IIC T4 GcEx II (2)D [Ex ib IIIC]
IECEx:Ex ec [ib IIC or IIB Gb] IIC T4 GcEx tc [ib IIC or IIB Gb] IIIC T120°C Dc
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