9411/21 (Zone 1 Ex i) 9411/24 (Zone 2 Ex i)


Rev. C

Registered Product Information

Manufacturer: R. Stahl GmbH
Product Name: 9411/21 (Zone 1 Ex i) 9411/24 (Zone 2 Ex i)
Product Description: FOUNDATION Isolated Device Coupler (FIDC), bus-powered
Category: H1 Couplers
Profile: FOUNDATION Device Coupler
More Information:   The Zone 1 and Zone 2 Ex i Field Device Couplers series 9411/21 and 9411/24 connect 4 or 8 intrinsically safe FISCO or Entity FOUNDATIONTM fieldbus H1 field devices to a non-intrinsically safe high power trunk. A feedback effect from the spurs on the trunk is prevented in the case of short-circuits by current limiting (spur protection). The Field Device Couplers feature a Power Management to minimize current from the trunk: * during start-up of a fieldbus segment, the Softstart function activates the spurs one after the other resulting in a significant lower inrush current * in the event of multiple short circuits, all short circuited spurs are de-energized until the failure is eliminated. Even with multiple short circuits per coupler, the trunk is loaded with max. one short circuit current at a time. The cable shields can be connected via capacitive connections at the terminals or directly at the cable screen bus bar. The couplers are mounted on DIN rail or in housings made of fiber glass-reinforced polyester, sheet steel or stainless steel.   Highlights 9411/21 and 9411/24: - 9411/21 optimized for installation in hazardous locations Zone 1 - 9411/24 optimized for installations in hazardous locations Zone 2 / Division 2 - Connection of up to 4 or 8 intrinsically safe FISCO or Entity fieldbus devices to a high power trunk - Short-circuit protection for each spur - Reduced inrush current (Softstart) and minimum short-circuit current through Power Management - LED indication of faults on each individual spur - Switchable terminator on board - Screw or cage clamp terminals, for spurs optionally pluggable - Customer specific enclosures available in many different versions - All certified ATEX, IECEx, FM, cFM, GOST-R, GOST-K, GOST-B, INMETRO - Segment engineering tool "Fieldbus Wizard" available free of charge from the website.  

Registered Product Details

Coupler Type: 163 - Foundation Isolated Device Coupler, bus-powered
Number of Spurs: 4 or 8

Registration Information

Registration Authority: FieldComm Group
Registration Status: Registered

Contact Information