Ang kontrol at signal na sirkuito ng tatlong-out-of-two incoming circuit breaker

FU:Fuse
SFA:paggalaw na switch
SFB:paggalaw na button
KFM:Intermediate relay
CBC:Closing coil
QA:Travel switch
CBO:Opening coil
PGR:Pulang signal light
PGG:Berseng signal light
PGW:Puting signal light
BG1:Circuit breaker hand test position
BG2:Circuit breaker hand working position