Junction box - FB2-S1-12SP-T-0-16-00-0-0

Stainless steel field junction box with 16 ports for use in hazardous locations. Includes 12-spur block device coupler (FB-12SP) for Foundation Fieldbus or PROFIBUS PA, three terminal blocks for trunk cable connection (+, –, S).

Product Details

FF/PA - 12-spur block junction box

Utilization restriction
CCCex note Use in potentially explosive areas is not permitted in China.

Product type Control box

Max. current consumption 6.5 mA (No-load)
680 mA (trunk)

Safety data
Input voltage Ui 32 V (IIB (C/D))
24 V (IIC (A/B))
17.5 V (FISCO)
Inductance Li 4 µH
Capacitance Ci 0 µF
Max. output voltage Uo Uin (spur)
Max. output current Io 56 mA (per spur)
Max. output power Po 1.792 W
Safety-related maximum voltage Um 17.5 V
IIC/IIB (per spur): Max. external inductivity Lo / Max. external capacitance Co / 80 nF
0.26 mH

Signal FOUNDATION Fieldbus
No. of channels 12
Termination resistor Integrated termination, activated with bridge located in correct terminals
Conductor cross section flexible max. 2.5 mm²
Conductor cross section flexible min. 0.2 mm²
Conductor cross section solid max. 2.5 mm²
Conductor cross section solid min. 0.2 mm²
Conductor cross section AWG max. 12
Conductor cross section AWG min. 24

Dimensional drawing
Width 355.6 mm
Height 304.8 mm
Depth 127 mm

Color gray
Housing material Stainless steel

Ambient conditions
Degree of protection IP66
Ambient temperature (operation) -40 °C ... 70 °C
Ambient temperature (storage/transport) -40 °C ... 70 °C
Altitude 2000 m
Max. permissible relative humidity (operation) < 95 % (non-condensing)

Conformance CE-compliant, additionally EN 61326-1
Ex data
Ex nA [ic] IIC T4 Gc, Ex nA nC [ic] IIC T4 Gc
Ex ic IIC T4 Gc, FISCO ic spurs
Ex tc IIIC T135 Dc IP66
IECEx IECEx UL 16.0079X
Ex nA [ic] IIC T4 Gc, Ex nA nC [ic] IIC T4 Gc
Ex ic IIC T4 Gc, FISCO ic spurs
Ex tc IIIC T135 Dc IP66
UL, USA / Canada Class I, Zone 2, AEx nA [ic] IIC T4 Gc, AEx nA nC[ic] IIC T4 Gc Entity/FISCO spurs
Class I, Div. 2, Groups A, B, C, D, T4
Class I, Zone 22, AEx tc IIIC T135 Dc IP66

Standards/regulations EN 61326-1
EN 60079-0
EN 60079-11
EN 60079-15

Mounting type Wall mounting

Item number 2316417
Packing unit 1 pc
Minimum order quantity 1 pc
Sales Key *****
Product Key DNC1Z1
Catalog Page Page 453 (C-6-2019)
GTIN 4055626301754
Weight per Piece (including packing) 8.14 kg
Weight per Piece (excluding packing) 6.54 kg
Customs tariff number 85371099
Country of origin US


ECLASS-9.0 27180101
ECLASS-10.0.1 27180101
ECLASS-11.0 27180101


ETIM 8.0 EC000261


UNSPSC 21.0 31261500


Approval ID: IECEx UL 16.0079X

cUL Listed

Approval ID: FILE E 199827

UL Listed

Approval ID: FILE E 199827


Approval ID: DEMKO 16 ATEX 1704X

cULus Listed

REACh SVHC Lead 7439-92-1

Your advantages

Single-sided plug configuration eliminates cable bend radius issues
Provides current limiting short-circuit protection per spur
Connect up to 12 Foundation Fieldbus or PROFIBUS PA field devices
Terminator preinstalled