Xtralis ADPRO PRO - Page 144

Definition: If an element fails, safety must
still be guaranteed
What constitutes an Error?
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144
The Zener diode is the critical component!
Z diode
FuseResistor
Ex-area
Safe area
Component
Type of Error
Broken wire Shortcut Safe?
Fuse
Yes
Unlikely
yes
Resistor
Possible
Unlikely
yes
Z
diode
Yes
yes
Z
diote
yes
NO