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Pepperl+Fuchs Z788 071810

Module Z788 Pepperl+Fuchs 071810
Manufacturer
Pepperl+Fuchs
Name
Z788
Part number
071810
Country
Germany
Type
Module
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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 a positive polarity, i. e. the anodes of the zener diodes are grounded. Asymmetrical Zener Barriers are for optimization of applications which have different voltage levels regarding to ground potential. 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.
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Specifications Z788 071810

Search characteristics
Additional functions
Asymmetrical versionyes
General specifications
TypeDC version, positive polarity
Electrical specifications
Nominal resistanceterminals 1, 8: 300 &Omega,, terminals 4, 5: 50 &Omega,
Series resistanceterminals 1, 8: max. 327 &Omega, terminals 4, 5: max. 64 &Omega,
Fuse rating50 mA
Hazardous area connection
Connectionterminals 1, 2, 3, 4
Safe area connection
Connectionterminals 5, 6, 7, 8
Working voltage
Supply loopterminals 7, 8: max. 27 V terminals 5, 6: max. 8.6 V
Measurement loopterminals 7, 8: max. 26.5 V at 10 µ,A terminals 5, 6: max. 6.5 V at 10 µ,A
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 110 mm (0.5 x 4.5 x 4.3 inch)
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
Marking II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20 °C &le, Tamb &le, 60 °C) [circuit(s) in zone 0/1/2]
Voltageterminals 1, 2: 28 V, terminals 3, 4: 9.56 V
Currentterminals 1, 2: 93 mA, terminals 3, 4: 195 mA
Powerterminals 1, 2: 650 mW, terminals 3, 4: 470 mW
Supply
Maximum safe voltage250 V
Series resistanceterminals 1, 2: min. 301 &Omega,, terminals 3, 4: min. 49 &Omega,
CertificateTÜV 99 ATEX 1484 X
Marking 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 (cULus)
IECEx approvalIECEx BAS 09.0142 IECEx BAS 17.0091X
Approved for[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.