• For Foundation™ fieldbus networks in hazardous areas

• Pre-assembled system components for up to 5 intrinsically

safe spur connections

• For assembly into user-specified field enclosure

• Spurs compatible with FISCO and “Entity-certified”

fieldbus instruments

• Ergonomic mechanical design

• Pluggable system components without “gas free” constraints

• Optional, integrated surge protection for trunk and spurs

The 9387-FB-R (5-spur) Open-frame redundant fieldbus barrier

provides intrinsically safe spur connections from a high-energy trunk, for

connection to suitably certified Foundation™ fieldbus H1 instruments.

The unit comprises pre-wired and assembled system components on

a stainless steel baseplate, for installation into a suitably certified field

enclosure. Connection facilities are provided for the trunk and spur

wiring, as well as all electronic modules needed to support a fully

working Fieldbus Barrier. In a typical application, an Ex e (increased

safety) certified field enclosure will be selected to allow installation

in a Zone 1 hazardous area; third-party approval of the enclosure and

contents is normally required.