Phoenix ContactImplementing intrinsically safe circuits
The 'Ex i' type of intrinsic safety has become established worldwide for measurement and control technology in systems with potentially explosive atmospheres. Compared to other types of protection, it is more cost-effective in terms of design.
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<p>Figure 3: The 12.5 mm narrow 'Ex i' disconnector series MACX MCR-EX-SL... is characterized by coordinated Io, Uo and Po values, making it compatible with a large number of 'Ex i' field devices. During its development, emphasis was also placed on the highest possible Co values, as this is the key parameter that determines the maximum cable length that can be realized.</p> © Phoenix Contact