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Intrinsic Safety Barriers limit the energy delivered from a safe area to a hazardous area. This power limitation prevents the possibility of explosions due to a malfunction of the device. IS Barriers are used instead of explosion proof conduit and heavy cast housings. Electrical energy (voltage and
current) are held within safe limits, as is total energy. This removes the possibility of an explosion due to excessive heat. Intrinsically safe design offers cost and safety advantages in industrial process measurement and control operations.