FieldConnex DART Segment Protectors R3-SP-IBD* are intrinsically safe fieldbus couplers for up to 12 outputs (spurs). Each output individually limits a short-circuit condition ensuring that the remaining segment is not adversely affected by a fault condition at one spur. It's main attributes are:
- T-connector on the trunk simplifies wiring multiple Segment Protectors
- Outputs intrinsically safe Ex ib IIC, permitting live work on the spur
- Installation and devices in Zone 1
The DART Segment Protector is part of the intrinsically safe High-Power Trunk concept in conjunction with DART Power Hubs. This enables long cable runs and many field devices with hot work permitted on couplers and devices.
The T-connector for the trunk enables exchange and modification of one Segment Protector without effecting other parts of the same fieldbus segment. All connectors feature retaining screws and receptacles for measuring tools such as the mobile Advanced Diagnostic Module. The Segment Protector supports all user choices for grounding and shielding.