Serviceline Industrial Sensors
Serviceline Explosion Protection

Surge Protection Barrier M-LB-Ex-2114.SP

  • Surge protection barrier for 2 signal lines
  • Nominal voltage 1 V DC
  • Surge protection barrier for grounded signal lines
  • Max. surge current (8/20 µs) 20 kA
  • Connection via spring terminals with push-in connection technology
  • DIN rail mountable
  • Up to SIL 3 acc. to IEC 61508

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of M-LB-Ex-2114.SP

Product Description
Surge protection barrier for 2 signal lines
General specifications
Number of protected signal lines2
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Electrical specifications
Connectionprotected area: terminals 4, 5
unprotected area: terminals 2, 3
shielding/grounding: terminal 1 (optional)
Rated current500 mA , restrictions see derating characteristics
Leakage current< 10 µA at 1 V and 25 °C (77 °F) , line-line
Nominal voltage1 V DC
Maximum continuous operating voltage6 V DC
Series resistance≤ 3 Ω per line
Impulse rating1 kV/0.5 kA (category C1)
10 kV/5 kA (category C2)
1 kA (category D1)
Impulse discharge current (10/350 µs)1 kA per line (2x)
Nominal discharge current (8/20 µs)5 kA per line (10x)
Total discharge current (8/20 µs)20 kA (1x) , overstressed fault mode 3 acc. to IEC 61643-21
Voltage protection levelmax. 12 V line-line for nominal discharge current In
max. 31 V line-earth for nominal discharge current In
Impulse reset time< 500 ms
Insertion loss≤ 3 dB at 0 ... 250 kHz in 100 Ω system
Electromagnetic compatibilityEN 61326-3-1:2017
Degree of protectionIEC 60529:2013
Functional safetyIEC/EN 61508:2010
Surge protective devices for low voltageIEC 61643-21:2000+A1:2008+A2:2012
Ambient conditions
Ambient temperature-40 ... 80 °C (-40 ... 176 °F)
Observe the temperature range limited by derating, see section derating.
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Relative humiditymax. 95 % , without condensation
Mechanical specifications
Degree of protectionIP20 , after mounting of the insulation spacer
Connectionspring terminals , max. core cross section 1 x 2.5 mm2
MaterialPolyamide (PA)
Massapprox. 32 g
Dimensions6.2 x 72.4 x 93 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateKIWA 19 ATEX 0003 X
MarkingEx-Hexagon II 2(1)G Ex ia [ia Ga] IIC T6...T4 Gb
Ex-Hexagon II (1)D [Ex ia Da] IIIC
Ex-Hexagon I (M1) [Ex ia Ma] I
Temperature classT6, T5 or T4 , restrictions see derating characteristics
Voltage6 V
Current500 mA , restrictions see derating characteristics
Internal capacitancenegligible
Internal inductance20 µH
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012
International approvals
IECEx approval
IECEx certificateIECEx KIWA 19.0003X
IECEx markingEx ia [ia Ga] IIC T6...T4 Gb
[Ex ia Da] IIIC
[Ex ia Ma] I
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see
Designation- insulation spacer M-LB-2800
- terminal block USLKG5

Documents: M-LB-Ex-2114.SP

ManualsLanguageFile TypeFile Size
Functional Safety ManualENGPDF602 KB
ManualENGPDF2037 KB
HandbuchGERPDF2025 KB
Handbuch Funktionale SicherheitGERPDF612 KB
Instruction manuals
ИнструкцииBULPDF145 KB
Návod k poużitíCZEPDF140 KB
Instruktions manualDANPDF139 KB
Instruction manualENGPDF144 KB
KasutusjuhendESTPDF135 KB
KäyttöohjeFINPDF134 KB
Manuel d'instructionsFRAPDF141 KB
BetriebsanleitungGERPDF145 KB
Οδηγίες χρήσηςGREPDF148 KB
HandleidingHOLPDF140 KB
Instruction manual / BetriebsanleitungHRVPDF136 KB
Használati útmutatóHUNPDF140 KB
Manuale di istruzioniITAPDF139 KB
Lietošanas pamācībaLAVPDF138 KB
Instrukciju vadovasLITPDF139 KB
Instrukcja obsługiPOLPDF140 KB
Manual de instruçõesPORPDF140 KB
Manual de utilizareRONPDF139 KB
Návod na poużitieSLKPDF140 KB
Navodila za uporaboSLVPDF137 KB
Manual de instruccionesSPAPDF140 KB
ManualSWEPDF137 KB

CAD+CAE: M-LB-Ex-2114.SP

CADFile TypeFile Size
3-D model in IGS format / 3-D-Modell im IGS-FormatIGS8440 KB
3-D model in STP format / 3-D-Modell im STP-FormatSTP2840 KB

Approvals+Certificates: M-LB-Ex-2114.SP

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-4287PDF87 KB
Worldwide TUV Rheinland Functional Safety Certificate968/FSP 1856.00/19PDF620 KB

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