Serviceline Industrial Sensors
Serviceline Explosion Protection

Zener Barrier Z728

  • 1-channel
  • DC version, positive polarity
  • Working voltage 26.5 V at 10 µA
  • Series resistance max. 327 Ω
  • Fuse rating 50 mA
  • DIN rail mounting

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of Z728

General specifications
TypeDC version, positive polarity
Electrical specifications
Nominal resistance300 Ω
Series resistancemax. 327 Ω
Fuse rating50 mA
Hazardous area connection
Connectionterminals 1, 2
Safe area connection
Connectionterminals 7, 8
Working voltagemax. 26.9 V , 26.5 V at 10 µA
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals , max. core cross-section 2 x 2.5 mm2
Massapprox. 150 g
Dimensions12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch)
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EC-Type Examination CertificateBAS 01 ATEX 7005
Group, category, type of protectionEx-Hexagon II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20 °C ≤ Tamb ≤ 60 °C) [circuit(s) in zone 0/1/2]
Statement of conformityTÜV 99 ATEX 1484 X
Group, category, type of protection, temperature classEx-Hexagon II 3G Ex nA IIC T4 Gc [device in zone 2]
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
Control drawing116-0118
UL approval
Control drawing116-0139
CSA approval
Control drawing116-0119
IECEx approvalIECEx BAS 09.0142
Approved for[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

Documents: Z728

ManualsLanguageFile TypeFile Size
Manual Zener Barriers Z-SystemENGPDF1203 KB
Handbuch Zenerbarrieren Z-SystemGERPDF1203 KB
Instructions, short instructions, safety information
Instruction manualENGPDF68 KB
Manuel d'instructionsFRAPDF136 KB
BetriebsanleitungGERPDF69 KB
Manuale di istruzioniITAPDF65 KB
Manual de instruccionesSPAPDF133 KB

Approvals+Certificates: Z728

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0060APDF189 KB
Baseefa IECEx Certificate of ConformityIECEx BAS 09.0142LINK---
Brasil TUV Rheinland BrazilTÜV 14.0362PDF5572 KB
Canada CSACoC 1041594PDF93 KB
China NEPSIGYJ15.1066PDF1860 KB
DNV GL MarineA-13714PDF41 KB
Europe Baseefa Group I (M1) ATEX Category (1) GDBAS 01 ATEX 7005PDF10230 KB
Europe TUV Nord II 3 G ATEX Category 3 GTÜV 99 ATEX 1484XPDF1460 KB
Japan TIISTC 15958PDF899 KB
Korea KOSHA14-AV4BO-0610PDF285 KB
Korea KOSHA09-AV4BO-0228/0229/0230PDF717 KB
Russia Belarus EAC Kazakhstan NANIO "CCVE"TC RU C-IT.GB05.B.00621PDF1943 KB
Russia VNIIMS Pattern ApprovalDE.C.34.004.A No.29175PDF3111 KB
SIMTARS IECEx Certificate of ConformityIECEx SIM 06.0012XLINK---
Control drawings
Control Drawing CSA / Control Drawing CSA   PDF169 KB
Control Drawing CSA / Control Drawing CSA   PDF232 KB
Control Drawing UL / Control Drawing UL   PDF185 KB