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FN-LB-I Surge Protection Barrier

Key Benefits at a Glance

  • 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

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Please contact us for exact delivery estimation.
Product photo: Surge Protection Barrier FN-LB-I
Product photo: Surge Protection Barrier FN-LB-I
Functional Safety: Safety Integrity Level - 3
Product Compliance: Europe – CE
Product Compliance: USA - cCSAus
Approval
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.

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DatasheetFunctionClassificationProduct DocumentationDesign / SimulationApprovals

Technical data of FN-LB-I

Number of protected signal lines1
Safety Integrity Level (SIL)SIL 3
Rated voltageUr≤ 48 V
Rated currentIr≤ 250 mA
Leakage current≤ 5 µA
On-state voltage≤ 85 V
Ground insulation≥ 500 V breakdown voltage
Total discharge current (8/20 µs)Itotal20 kA
Degree of protectionIEC 60529:2001
Ambient temperature-30 ... 60 °C (-22 ... 140 °F) For usage in hazardous area observe the EC-type examination certificate.
Housing materialStainless steel 1.4401 (AISI 316)
surface all over polished
Degree of protectionIP67
Cable
LengthL0.3 m
Massapprox. 200 g
DimensionsAF22 x 77 mm (0.9 x 3 inch)
Length77 mm
Width across flats22
MountingNPT1/2 thread
EU-type examination certificatePTB 00 ATEX 2175
MarkingEx-Hexagon II 2G EEx ia IIC T6
VoltageUi50 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
CSA approval
Control drawing116-0187 (cCSAus)
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.
General Notes

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Pepperl+Fuchs adds the powerful M-LB-4000 to its portfolio of surge protection systems. The two-part system is based on a modular design consisting of a base module and a protection module, which makes installation and maintenance simple and convenient.
More information

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