• Use with F300 range of Megablocks and 918x-x2 range of fieldbus power

supplies to provide Ex ic intrinsically safe spurs for FOUNDATIONTM 

Fieldbus networks

•  Allows spurs to be live-worked in Zone 2 when connected to suitably

certified field instruments

•  Compatible with FISCO and Entity certified fieldbus devices

•  Installs with Megablock in field junction box

•  Supports long trunk cable lengths and heavily loaded fieldbus segments

The F30 Ex ic Adaptor is an accessory to F300 range of

Megablock wiring hubs, and provides intrinsically safe Ex ic

spur connections for fieldbus networks in Zone 2 hazardous

areas. One F30 is used with each Megablock, to limit the

voltage at the spurs to Ex ic levels. When connected to suitably

certified fieldbus instruments, the spurs may be live-worked in

accordance with normal intrinsic safety procedures. The F30 is

completely transparent to all fieldbus communications.

The F30 is compatible with F304. F308 and F312 Megablock

types, typically providing up to 12 Ex ic spurs per fieldbus

segment. Up to two F30s and their associated Megablocks

may be connected to a single segment, to allow the fieldbus

trunk to be extended between junction boxes in the field.