Serviceline Industrial Sensors
Serviceline Explosion Protection

Fieldbus Surge Protector, Field Installation, Ex ia F*-LBF-I1.32

  • Surge Protector in stainless steel housing
  • Intrinsically safe, FISCO or Entity
  • Surge protection for '+' and '-' fieldbus lead
  • Choice of threads 20 mm or 1/2" NPT
  • For FOUNDATION Fieldbus H1 and PROFIBUS PA

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  F*-LBF-I1.32

General specifications
Design / MountingOutside installation
Electrical specifications
Rated voltage32 V
Rated current550 mA
Nominal discharge current (8/20 µs)
per line10 kA
total10 kA
Max. surge current (8/20 µs)10 kA
Voltage protection level at max. rated current
Line/Line58 V
Line/Earth1700 V
Voltage protection level at 1 kV/µsec
Line/Line50 V
Line/Earth1.2 kV
Reaction time
Line/Linemax. 1 ns
Line/Earthmax. 100 ns
Line/Line25 pF
Line/Earth15 pF
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013
Standard conformity
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC/EN 60529
Fieldbus standardIEC 61158-2
Surge protectionIEC 61643-21
Ambient conditions
Ambient temperature-50 ... 80 °C (-58 ... 176 °F)
Storage temperature-50 ... 85 °C (-58 ... 185 °F)
Mechanical specifications
Core cross-section1.3 mm2
Housing materialStainless steel 1.4401 (AISI 316)
surface all over polished
Degree of protectionIP00/IP67 if correctly installed
Mass160 g
Mountingscrew mounting
Data for application in connection with hazardous areas
EU-Type Examination CertificateKEMA 04 ATEX 1317 X
MarkingEx-Hexagon II 2(1)G Ex ia IIC T4/T5/T6
VoltageEntity 30 V , FISCO 17.5 V
CurrentEntity 550 mA , FISCO 380 mA
PowerEntity 3 W , FISCO 5.32 W
Internal capacitancenegligible 0 nF
Internal inductancenegligible 0 µH
Directive conformity
Directive 2014/34/EUEN 60079-0:2012 , EN 60079-11:2012 , EN 60079-26:2007
International approvals
IECEx approvalIECEx KEM 09.0081X
Approved forEx ia [ia Ga] IIC T5/T6 Gb
Certificates and approvals
Marine approvalDNV A-14038


ECLASS 11.027242692
ECLASS 10.0.127242692
ECLASS 9.027242692
ECLASS 8.027242692
ECLASS 5.127242692
ETIM 8.0EC002584
ETIM 7.0EC002584
ETIM 6.0EC002584
ETIM 5.0EC001604
UNSPSC 12.139121610

Documents: F*-LBF-I1.32

ManualsLanguageFile TypeFile Size
ManualENGPDF232 KB
HandbuchGERPDF217 KB
Instruction manuals
ИнструкцииBULPDF124 KB
Návod k poużitíCZEPDF0 KB
Instruktions manualDANPDF0 KB
Instruction manualENGPDF44 KB
KasutusjuhendESTPDF116 KB
KäyttöohjeFINPDF117 KB
Manuel d'instructionsFRAPDF49 KB
BetriebsanleitungGERPDF58 KB
Οδηγίες χρήσηςGREPDF0 KB
HandleidingHOLPDF0 KB
Instruction manual / BetriebsanleitungHRVPDF119 KB
Használati útmutatóHUNPDF121 KB
Manuale di istruzioniITAPDF48 KB
Instrukcja obsługiPOLPDF121 KB
Manual de instruçõesPORPDF120 KB
Manual de utilizareRONPDF120 KB
Návod na poużitieSLKPDF120 KB
Navodila za uporaboSLVPDF119 KB
Manual de instruccionesSPAPDF48 KB
ManualSWEPDF118 KB

Approvals+Certificates: F*-LBF-I1.32

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0511BPDF89 KB
DNV GL MarineTAA0000272PDF78 KB
EAC EAC TP TC 012/2011TC RU C-DE.AA71.B.00140PDF2600 KB
Europe KEMAKEMA 04 ATEX 1317XPDF1647 KB
KEMA IECEx Certificate of ConformityIECEx KEM 09.0081XLINK---

Function: F*-LBF-I1.32

F*-LBF-I1.32 are surge protection devices for fieldbus installations. They direct power surges to earth via gas discharge tubes, protecting field devices and control units from voltage surges and lightning strikes. They are in accordance with the fieldbus standard IEC 61158-2 and are certified intrinsically safe Ex ia for Zone 1, FISCO, and Entity.

FieldConnex ® surge protectors for field installation enable the coordinated use in a lightning protection zone concept in accordance with IEC 61312-1. Housings are available with 20 mm ISO or ½" NPT connecting threads for easy installation on outdoor junction boxes.