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Open-frame, Redundant Fieldbus Barrier
Brand: MTL InstrumentsThe 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.
Features- 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
Specifications
Brand
Number of Spurs
- 5
- 6th spur allocated to alarm module
Number of 9377-FB-R Modules
- 2
Current per Spur
- 0 - 32 mA
Spur Voltage
- ≥ 10 V at 40 mA
Number of Field Devices
- 1 per spur
Data Rate
- 31.25kBaud
Reverse Polarity Protection
- Yes
Terminal Type
- Pluggable Screw Terminal Connectors
- Pluggable Spring-clamp Connectors
- Equipment is Suitable for Use in Hazardous Area Applications