Serviceline Industrial Sensors
Serviceline Explosion Protection

Surge Protection Barrier FN-LB-I

FN-LB-I
  • 1-channel
  • Field mount module
  • ½ NPT thread
  • Stainless steel housing
  • Max. surge current (8/20 µs) 20 kA
  • 500 V isolation from earth
  • Suitable for hazardous area
  • Up to SIL 3 acc. to IEC/EN 61508

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  FN-LB-I

General specifications
Number of protected signal lines1
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Supply
Rated voltage≤ 48 V
Rated current≤ 250 mA
Leakage current≤ 5 µA
On-state voltage≤ 85 V
Ground insulation≥ 500 V breakdown voltage
Electrical specifications
Total discharge current (8/20 µs)20 kA
Conformity
Degree of protectionIEC 60529:2001
Ambient conditions
Ambient temperature-30 ... 60 °C (-22 ... 140 °F) For usage in hazardous area observe the EC-type examination certificate.
Mechanical specifications
Housing materialStainless steel 1.4401 (AISI 316)
surface all over polished
Degree of protectionIP67
Cable
Length0.3 m
Massapprox. 200 g
DimensionsAF22 x 77 mm (0.9 x 3 inch)
Length77 mm
Width across flats22
MountingNPT1/2 thread
Data for application in connection with hazardous areas
EU-type examination certificatePTB 00 ATEX 2175
MarkingEx-Hexagon II 2G EEx ia IIC T6
Voltage50 V
Maximum leakage current10 kA line to ground (common), 5 kA line to line (differential) in accordance to IEC 60-2
Nominal response time
Symmetrical1 ns
Asymmetric100 ns
Bandwidth≥ 40 kHz
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012
International approvals
CSA approval
Control drawing116-0187 (cCSAus)
General information
Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see www.pepperl-fuchs.com.

Classifications

SystemClasscode
ECLASS 13.027171202
ECLASS 12.027171202
ECLASS 11.027130805
ECLASS 10.0.127130805
ECLASS 9.027130805
ECLASS 8.027130805
ECLASS 5.127130801
ETIM 9.0EC000941
ETIM 8.0EC000941
ETIM 7.0EC000941
ETIM 6.0EC000941
ETIM 5.0EC000941
UNSPSC 12.139121610

Details: FN-LB-I

Function

This Surge Protection Barrier limits induced transients of different origin (e. g. lightning stroke, switching impulse, etc.). This is achieved by diverting the transient current to ground and limiting the signal line voltage to a safe level for the duration of the surge.

This barrier provides 85 V line-to-line and 500 V line-to-ground clamping voltage for the protected instruments. It also protects instruments that have less than 500 V isolation-to-ground.

It is installed in an available conduit or cable gland opening like those found on most process transmitters.

For additional information, refer to the manual and www.pepperl-fuchs.com.

Note: Surge Protection Barriers must always be connected to a solid and effective ground and be at the same equipotential level as the instrument it is protecting. The ground system must comply with all applicable regulations.

Product Documentation: FN-LB-I

Language Selection:
Brief InstructionsLanguageFile TypeFile Size
Brief Instructions - Surge Protection BarriersENGPDF876 KB
Safety and Security Documentation
Instruction manualENGPDF157 KB
ManualENGPDF2244 KB
Manuals
Manual Surge Protection BarriersENGPDF1151 KB

Design / Simulation: FN-LB-I

Language Selection:
CADLanguageFile TypeFile Size
CAD 3-D / CAD 3-DALLSTP102 KB

Approvals: FN-LB-I

Language Selection:
CertificatesCert No.LanguageFile TypeFile Size
Canada, USA CSACoC 1128189ALLPDF62 KB
China SITIIAS CCC Ex Certificate2020322304002781 (Singapore)ALLPDF870 KB
Europe PTB ATEX Category 2 GPTB 00 ATEX 2175ALLPDF353 KB
exida Functional Safety AssessmentP+F 11-10-085 R036 V1R0ALLPDF477 KB
Control Drawings
Control drawing CSA / Control drawing CSA   ALLPDF179 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-0969AALLPDF88 KB
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