Moore Industries

Nov. 3, 2006
Couplers connect fieldbus devices in hazardous locations
Fieldbus in the Danger Zone
TG300 TrunkGuard device couplers connect Foundation fieldbus H1 or Profibus PA fieldbus devices in Zone 1 and 2 hazardous locations. The device couplers allow live access for maintenance without de-powering the segment and eliminate the need for expensive Exd/Flameproof junction boxes. Available in 4- and 8-fieldbus models. Special features for Zone 1 and 2 installations include a key-operated magnetic interface that allows individual fieldbus devices to be de-energized and worked on without de-powering the entire segment. Full protection to IP30.