Serviceline Industrial Sensors
Serviceline Explosion Protection

Enclosure Leakage Sensor ELS-1

  • Indication via LED and Advanced Diagnostics
  • Intrinsically safe, FISCO or Entity
  • For instrument or device coupler
  • Fits inside terminal compartment
  • 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  ELS-1

Product Description
Housing leakage sensor, for operation with FOUNDATION Fieldbus and PROFIBUS PA
General specifications
Design / MountingCabinet installation
Fieldbus connection
Rated voltage9 ... 32 V
Power dissipation670 mW
Self current consumptionmax. 6 mA
Indicators/operating means
LED ERRgreen flashing: status OK , red flashing: maintenance required
Transfer characteristics
Internal measurement cyclein normal state 30 s in alarm state 300 s
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013
Standard conformity
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529
Fieldbus standardIEC 61158-2
Climatic conditionsIEC 60721
Shock resistanceEN 60068-2-27
Vibration resistanceEN 60068-2-6
Ambient conditions
Ambient temperature-40 ... 80 °C (-40 ... 176 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Relative humidity100 %
Shock resistance15 g 11 ms
Vibration resistance1 g , 10 ... 150 Hz
Life spanexposed to rain water 8760 h , exposed to sea water 1440 h
Mechanical specifications
Connection typetwo strands, length 180 mm with cable ferrules, PVC insulation
Core cross section0.25 mm2
Housing materialPolycarbonate
Degree of protectionElectronic component IP67
connection IP00
Mass10 g
Data for application in connection with hazardous areas
EU-type examination certificateSIRA 12 ATEX 2129X
MarkingEx-Hexagon II 1G Ex ia IIC T4
Voltage24 V
Internal capacitancenegligible 0 nF
Internal inductancenegligible 0 µH
CertificateSIRA 12 ATEX 4154X
MarkingEx-Hexagon II 3G Ex nAc IIC T4 , Ex-Hexagon II 3G Ex ic IIC T4
Voltage Ui33 V
Internal capacitance Cinegligible 0 nF
Directive conformity
Directive 2014/34/EUEN 60079-0:2011 Ed. 6 , EN 60079-11:2012 , EN 60079-15:2010 , EN 60079-26:2007
Supplementary informationFISCO field device
International approvals
UL approval
Control drawing116-B028
Approved forClass I, Division 1, Groups A, B, C, D, T4 ,
Class I, Division 2, Groups A, B, C, D, T4
IECEx approvalIECEx SIR 12.0052X
Approved forEx ia IIC T4 , Ex ic IIC T4 , Ex nAc IIC T4
Certificates and approvals
Marine approvalDNV A-14038
General information
Supplementary informationStatement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see


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 12.139121008

Documents: ELS-1

ManualsLanguageFile TypeFile Size
Manual Enlosure Leckage Sensor ELS-1ENGPDF394 KB
Instruction manuals
ИнструкцииBULPDF193 KB
Návod k poużitíCZEPDF0 KB
Instruktions manualDANPDF0 KB
Instruction Manual ELS-1ENGPDF61 KB
KasutusjuhendESTPDF184 KB
KäyttöohjeFINPDF184 KB
Instruction Manual ELS-1FRAPDF148 KB
Betriebsanleitung ELS-1GERPDF65 KB
Οδηγίες χρήσηςGREPDF0 KB
HandleidingHOLPDF0 KB
Instruction manual / BetriebsanleitungHRVPDF187 KB
Használati útmutatóHUNPDF188 KB
Instruction Manual ELS-1ITAPDF146 KB
Lietošanas pamācībaLAVPDF187 KB
Instrukciju vadovasLITPDF0 KB
Instrukcja obsługiPOLPDF189 KB
Manual de instruçõesPORPDF187 KB
Manual de utilizareRONPDF187 KB
Návod na poużitieSLKPDF188 KB
Navodila za uporaboSLVPDF186 KB
Instruction Manual ELS-1SPAPDF87 KB
ManualSWEPDF124 KB

Approvals+Certificates: ELS-1

Statements of complianceCertificate No.File TypeFile Size
EU Declaration of Conformity / EU-KonformitätserklärungDOC-0815CPDF1040 KB
Brasil TUV Rheinland BrazilTÜV 14.1590 XPDF607 KB
Canada UL cULE106378 cUL (QUZW7)LINK---
DNV GL MarineTAA0000272PDF78 KB
Europe CSASira 12 ATEX 2129XPDF208 KB
Europe CSA II 3 GSira 12 ATEX 4154XPDF218 KB
Sira IECEx Certificate of ConformityIECEx SIR 12.0052XLINK---
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378CoC 20170901 - E106378 RepRef 20141031PDF286 KB
Control drawings
Control Drawing UL / Control Drawing UL   PDF296 KB

Function: ELS-1

The enclosure leakage sensor senses water ingress in field device housings or junction boxes. It fits into the enclosure and sends alarms via the fieldbus network. It is certified intrinsically safe Ex ia for installation in Zone 0.

The alarm is indicated via LED and in the control room via FieldConnex ® Advanced Diagnostics. Corrective actions can thus prevent effects from becoming irreversible or avoid conditions adverse to plant performance.

The ELS-1 connects in parallel to field instruments, trunk or spur connectors of compatible device coupler.

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