The FB-2SP has terminal blocks for two spur connections to each device coupler. The device coupler provides short-circuit protection to the fieldbus trunk. Voltage and communication are routed via the TBUS connection system to multiple installed device couplers.
Ambient temperature (operation)
-40 °C ... 85 °C (depending on set rated current)
Ambient temperature (storage/transport)
-40 °C ... 85 °C
Permissible humidity (operation)
10 % ... 95 % (non-condensing)
Degree of protection
IEC 60529, IEC 61158-2
EN 61326, EN 60068-2-27, EN 60068-2-6
On horizontal DIN rail NS 35 in acc. with EN 60715
CE-compliant, additionally EN 61326
Ex II 3(3) G Ex nA [nL Gc] IIB T4 Gc, FNICO spurs
Ex II 3(3) G Ex nA [ic Gc] IIB T4 Gc, FISCO ic spurs
Ex nA [nL Gc] IIB T4 Gc, FNICO spurs
Ex nA [ic Gc] IIB T4 Gc, FISCO ic spurs
Supply voltage range
10.3 V DC ... 32 V DC (input on trunk line side)
Typical current consumption
Foundation Fieldbus and PROFIBUS PA Segment
Pluggable COMBICON screw connection for each spur
Conductor cross section solid min.
Conductor cross section solid max.
Conductor cross section flexible min.
Conductor cross section flexible max.
Conductor cross section AWG min.
Conductor cross section AWG max.
Output nominal voltage
≤ 32 V (each spur)
15 mA (each spur, adjustable via selector switch, -40 ... 85°C)
Maximum output current
22 mA (each spur, adjustable via selector switch, -40 ... 85°C)
Max. output voltage Uo
Max. output current Io
Max. output power Po
Max. external capacity Co
Max. external inductivity Lo
Sira 14ATEX4018X; Ex II 3(3)GEx nA [ic] IIC T4 Gc;Ex nA [ic] IIC T4 Gc, FISCO ic spurs
IECEx SIR 14.0011X;Ex nA [ic] IIC T4 Gc;Ex nA [ic] IIC T4 Gc, FISCO ic spurs
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