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Text version of the page
2/17
2
Automation 02.07.2008
Safety Barriers
Standard Applications
9001/01-252-060-141
Selection Table
Description Order number
Application Digital input with switch (load grounded)
Field circuit grounded
Diagram
09955E02
Nominal values
Operating voltage UN = + 20 V ... 35 V
Operating current IN = 40 mA
Voltage at load UL ) UN - 3 V
Safety values
Maximum voltage Uo = 25.2 V
Maximum current Io = 60 mA
Maximum permissible
external inductance Lo
IIC
6.2 mH
IIB
25 mH
Maximum permissible
external capacitance Co
IIC
0.107 mF
IIB
0.82 mF
Maximum power Po = 378 mW
Application note This safety barrier is particularly suited to drive a relay. Also it is possible to
drive a digital input (optocoupler) of an automation system as load.
Note Further technical data see page 36
9001/01-252-060-141
+20 ... 35 V DC
RL
Supply Voltage
Hazardous area Safe area