Serviceline Industrial Sensors
Serviceline Explosion Protection

Zener Barrier Z954

Z954
  • 3-channel
  • AC version
  • Working voltage 0.6 V at 1 µA
  • Series resistance max. 27.27 Ω
  • Fuse rating 50 mA
  • DIN rail mountable

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  Z954

General specifications
TypeAC version
Electrical specifications
Nominal resistance12 Ω
Series resistancemax. 27.27 Ω
Fuse rating50 mA
Hazardous area connection
Connectionterminals 1, 2; 2, 3; 2, 4
Safe area connection
Connectionterminals 5, 7; 6, 7; 8, 7
Working voltage
Supply loopmax. 3.7 V
Measurement loopmax. 0.6 V at 1 µA
Conformity
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Relative humiditymax. 75 % , without condensation
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Core cross sectionmax. 2 x 2.5 ... mm2
Massapprox. 150 g
Dimensions12.5 x 115 x 116 mm (0.5 x 4.5 x 4.6 inch) (W x H x D)
Height115 mm
Width12.5 mm
Depth116 mm
Construction typemodular terminal housing , see system description
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateBAS 01 ATEX 7005
MarkingEx-Hexagon II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Voltage4.5 V
Current383 mA
Power430 mW
Supply
Maximum safe voltage250 V
Series resistancemin. 11.76 Ω
CertificateTÜV 99 ATEX 1484 X
MarkingEx-Hexagon II 3G Ex nA IIC T4 Gc
Directive conformity
Directive 2014/34/EUEN IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
Control drawing116-0118
UL approval
Control drawing116-0139 (cULus)
IECEx approval
IECEx certificateIECEx BAS 09.0142
IECEx BAS 17.0091X
IECEx marking[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I
Ex ec IIC T4 Gc
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

SystemClasscode
ECLASS 13.027211016
ECLASS 12.027211016
ECLASS 11.027211016
ECLASS 10.0.127219001
ECLASS 9.027219001
ECLASS 8.027219001
ECLASS 5.127210702
ETIM 9.0EC001485
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC002653
UNSPSC 12.139121018

Details: Z954

Function

The Zener Barrier prevents the transfer of unacceptably high energy from the safe area into the hazardous area.

The zener diodes in the Zener Barrier are connected in the reverse direction. The breakdown voltage of the diodes is not exceeded in normal operation. If this voltage is exceeded, due to a fault in the safe area, the diodes start to conduct, causing the fuse to blow. The Zener Barrier has alternating polarities, i. e. interconnected zener diodes are employed and one side is grounded. The Zener Barrier can be used for both alternating voltage signals and direct voltage signals.

Depending on the application, increased or decreased intrinsic safety parameters apply for serial or parallel connection. For the detailed parameters refer to the Zener Barrier certificate. Application examples can be found in the system description of the Zener Barriers.

Product Documentation: Z954

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF233 KB
Functional Safety ManualENGPDF1972 KB
Manuals
System ManualENGPDF1203 KB

Design / Simulation: Z954

Language Selection:
CADLanguageFile TypeFile Size
CAD 3-D / CAD 3-DALLSTP951 KB
CAD Portal / CAD PortalALLLINK---
CAE
EPLAN macros Z-System devices (EMA) / EPLAN-Makros Geräte Z-System (EMA)ALLZIP2338 KB

Approvals: Z954

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Baseefa IECEx Certificate of ConformityIECEx BAS 17.0091XALLLINK---
Baseefa IECEx Certificate of ConformityIECEx BAS 09.0142ALLLINK---
Brasil TUV Rheinland BrazilTÜV 14.0362ALLPDF1465 KB
China SITIIAS CCC Ex Certificate2020322316002775 (Bintan)ALLPDF21091 KB
DNV MarineTAA00001WXALLPDF106 KB
Europe Baseefa Group I (M1) ATEX Category (1) GDBAS 01 ATEX 7005ALLPDF8525 KB
Europe TUV Nord II 3 G ATEX Category 3 GTÜV 99 ATEX 1484XALLPDF1460 KB
India PESO (India) CCOEA/P/HQ/KA/104/6091 (P576843)ALLPDF105 KB
Japan TIISTC16042ALLPDF1742 KB
Korea KOSHA09-AV4BO-0228/0229/0230ALLPDF717 KB
SIMTARS IECEx Certificate of ConformityIECEx SIM 06.0012XALLLINK---
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378CoC 20190321 - E106378 RepRef 19960425ALLPDF252 KB
USA FMFM 17 US 0370ALLPDF416 KB
USA ULE106378 UL (QUZW)ALLLINK---
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) D UKEX Category (1) G UKEX Category (M1)CML 21UKEX2898ALLPDF818 KB
Worldwide Pepperl+Fuchs Functional Safety AssessmentCERT-5207ALLPDF575 KB
Control Drawings
Control drawing UL / Control drawing UL   ALLPDF170 KB
Control drawing FM / Control drawing FM   ALLPDF167 KB
Declaration of Conformity
EU Declaration of Conformity (P+F)TDOC-0060EENGENGPDF197 KB
UK Declaration of Conformity (P+F) / UK-Konformitäterklärung (P+F)DOC-5844ALLPDF98 KB

Associated Products: Z954

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