Zener Barrier Z787

Zener Barrier Z787

Mfr.: Pepperl+Fuchs Process Automation

Mfr. Part #: Z-787


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"Zener Barrier Z787"

  • 2-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
  • With diode return

 

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.

 

General specifications
Type DC version, positive polarity
Electrical specifications
Nominal resistance 300 Ω
Series resistance terminals 1, 8: max. 327 Ω
Voltage drop terminals 4, 5: 1.2 V + (36 Ω x signal current)
Fuse rating 50 mA
Hazardous area connection
Connection terminals 1, 2; 3, 4
Safe area connection
Connection terminals 5, 6; 7, 8
Working voltage
Supply loop max. 27 V
Measurement loop max. 26.5 V at 10 µA
Conformity
Degree of protection IEC 60529
Ambient conditions
Ambient temperature -20 ... 60 °C (-4 ... 140 °F)
Storage temperature -25 ... 70 °C (-13 ... 158 °F)
Relative humidity max. 75 % , without condensation
Mechanical specifications
Degree of protection IP20
Connection screw terminals
Core cross-section max. 2 x 2.5 ... mm2
Mass approx. 150 g
Dimensions 12.5 x 115 x 110 mm (0.5 x 4.5 x 4.3 inch)
Construction type modular terminal housing , see system description
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate BAS 01 ATEX 7005
Marking Ex-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]
Voltage 28 V
Current 93 mA
Power 650 mW
Supply
Maximum safe voltage 250 V
Series resistance min. 301 Ω
Certificate TÜV 99 ATEX 1484 X
Marking Ex-Hexagon# II 3G Ex nA IIC T4 Gc [device in zone 2]
Directive conformity
Directive 2014/34/EU EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
Control drawing 116-0118
UL approval
Control drawing 116-0139 (cULus)
IECEx approval IECEx BAS 09.0142
IECEx BAS 17.0091X
Control drawing [Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I
Ex ec IIC T4 Gc
General information
Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see -  www.control-automation.com/

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