KK4145A
Press
To Test
R
TEST
15K
Ground Neutral
Transformer
Sense Transformer
1000:1
M
OV
Latching
Contacts
K1
200:1
Hot
Line
Neutral
R
Load
SENSE
1M*
C1
10µF
KK4145AN
Op Amp Output
C3
0.01
µ
F
V
FB
Solenoid
C4
0.03
V
(+13V)
+V
µF
REF
S
GND
SCR Trigger
DB1
1N4004 (4)
R
LINE
24 K
Q1 ON Semi
MCR100-6
C2
0.01µF
CF
2.2
µ
F
* Value depends on transformer characteristics.
Figure 1. GFI Application Circuit (Three-Wire Outlet)