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Automation interfaces and solutions
Fieldbus technology
Field device coupler

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Field device coupler

Field device coupler for a variety of fieldbus applications
The couplers for operation using the FOUNDATION™ Fieldbus H1 or PROFIBUS PA come in four-, eight- or 12-channel versions for intrinsically safe or non-intrinsically safe fieldbus devices and for installation in Zone 1 or 2. All couplers feature an innovative power management function.

All device couplers use the efficient High Power Trunk concept and are optimised for a variety of applications.
R. STAHL's Ex i field device couplers are available with four or eight channels in two versions: A Zone 1 version, or alternatively, a cost-optimised Zone 2 version. All Ex i couplers are galvanically separated and can be operated with Zone 1 fieldbus devices using the FISCO or Entity concept.
Zone 1 Ex e couplers are suitable for four or eight non-intrinsically safe fieldbus devices. Zone 2 Ex n couplers are available with four, eight or 12 channels for ic and non-intrinsically safe fieldbus devices.
The power management function of all field device couplers keeps the current load on the trunk as low as possible at all times. Start-up currents and short-circuit currents are kept to a minimum.

For FOUNDATION™ Fieldbus H1 or PROFIBUS PA
Reduced start-up current and minimal short-circuit currents thanks to the integrated power management function
Easy to install and maintain thanks to the integrated end-of-line resistor, shield bus and LED indicators

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Certificates SAP

USA (FM)
International (FF)
India (PESO)
IECEx (BVS)
EAC (Sertium)
Canada (FM)
Brazil (ULB)
ATEX (BVS)

Zone Filter

2 G | Gb | Zone 1
3 G | Gc | Zone 2
3 D | Dc | Zone 22

Firedamp equipment category

Gas equipment sub-group

IIB
IIB+H2
IIC

Gas temperature class

Dust-Max. surface temperature

Min. ambient temperature

-40°C

Max. ambient temperature

+75°C

Signal types

Field enclosure

zonder, DIN-rail-montage
without, DIN rail mounting
Without, DIN rail mounting

Application range (zones)

Ex interface zone

Number of Channels

Max rated operational voltage

Min rated operational voltage

Width

208.500 mm
206.000 mm
154.000 mm
103.000 mm

Connection type

7 Series (15 Products)

Field Device Coupler 4 Spurs Series 9411/21

For connecting 4 intrinsically safe (FISCO/Entity) fieldbus devices in Zone 1
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection

Field Device Coupler 8 Spurs Series 9411/21

For connecting 8 intrinsically safe (FISCO/Entity) fieldbus devices in Zone 1
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection

Field Device Coupler 4 Spurs Series 9411/11

For connecting 4 fieldbus devices in Zone 1
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection

Field Device Coupler 8 Spurs Series 9411/11

For connecting 8 fieldbus devices in Zone 1
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection

Field Device Coupler Series 9411/24

For connecting 4 (FISCO, Entity) fieldbus devices in Zone 2
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection

Field Device Coupler 8 Spurs Series 9411/24

For connecting 8 (FISCO, Entity) fieldbus devices in Zone 2
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection

Field Device Coupler Series 9410

For connecting 4, 8 or 12 fieldbus devices in Zone 2
Ex ec or ic spurs
Operated using High Power Trunk concept
Reduced start-up current thanks to power management and short-circuit limiting with disconnection