Circuit examples
18
Application Guide TwinSAFE
DC
avg
Designation
Range
none
DC < 60 %
low
60 %
≤
DC < 90 %
medium
90 %
≤
DC < 99 %
high
99 %
≤
DC
Category
B
1
2
2
3
3
4
DC
MTTF
d
none
none
low
medium
low
medium
high
low
a
-
a
b
b
c
-
medium
b
-
b
c
c
d
-
high
-
c
c
d
d
d
e