Effective 7/1/2003
Page 17
I.L. 70C1037H04
Figure 3.1 Block Diagram with Breaker Interface
(Load/
Lowe
r)
(L
ine/
Uppe
r)
NA
BC
AU
X C
Ts
Res
id
ual
G
roun
d
Det
ec
tio
n
Ty
pi
ca
l P
has
e
or
G
roun
d S
e
ns
in
g
R
esist
or
Br
id
g
e
Ci
rc
ui
ts
In
ter
na
l
Po
w
e
r
S
u
ppl
y
Mak
in
g C
urr
ent
Re
leas
e Ci
rc
ui
tr
y
(S
ee
S
e
ct
io
n 3.
3)
Tr
ip
A
ct
uat
or
LE
D
Pu
lse
Ci
rc
ui
t
Ba
tte
ry
+ 3V
G
round A
lar
m
Po
w
er
Su
p
ply
Op
tio
n
al
fo
r 5
20
M
R
e
qu
ire
d f
or
52
0M
C
FE
T
Tr
ip
(S
ee
S
e
ct
io
n 1.
2)
Tr
ip
L
E
D
Rat
ing P
lug
In
te
gr
at
ed
P
roces
so
r
Ci
p
H
TM
Cu
st
om
Desi
gned
TA
S
tat
us
L
E
D
(S
e
e S
e
ct
ion 3
.2)
(S
ee
S
ec
tion 7.
0)
(S
ee S
ec
tio
n
2.
3)
(S
ee
S
ec
tion 3.
4
)
Z
one In
ter
lo
ck
Ci
rc
ui
tr
y
D
isp
la
y f
or 5
20
M
/M
C
ZI
n
ZO
ut
Cur
re
n
t S
ens
or
s
(S
e
e S
e
ct
ion
8)
(S
e
e S
e
ct
ion 4
.0)
P
ro
tec
tion
S
et
tin
g
4 bi
t
Lat
ch
Chi
p
