Pepperl Fuchs Zener Barrier Z787.H With diode return
2-channel
DC version, positive polarity
Working voltage 26.5 V at 10 µA
Series resistance max. 250 Ω
Fuse rating 80 mA
DIN rail mountable
High power version
With diode return
General specifications
Type DC version, positive polarity
Electrical specifications
Nominal resistance 240 Ω
Series resistance max. 250 Ω
Fuse rating 80 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 116 mm (0.5 x 4.5 x 4.6 inch) (W x H x D)
Height 115 mm
Width 12.5 mm
Depth 116 mm
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
Voltage 28 V
Current 120 mA
Power 830 mW
Supply
Maximum safe voltage 250 V
Series resistance min. 235 Ω
Certificate TV 99 ATEX 1484 X
Marking Ex-Hexagon II 3G Ex nA IIC T4 Gc
Directive conformity
Directive 2014/34/EU EN IEC 60079-0:2018+AC:2020 , 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 certificate IECEx 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
