Generac Power Systems 004877, Owner'S Manual, Page: 18 / 44

Operation
14 Integrated Load Center Owner’s Manual
Main Contacts at Normal (Utility)
See Figure 4-2 . Load terminals are connected to the
normal (utility) terminals. Window “A” will display the
word “ON”; Window “B” the word “OFF”.
Figure 4-2. Main Contacts at Normal (Utility)
Main Contacts at Neutral
See Figure 4-3 . Load terminals are disconnected from
both power supply terminals. The word “OFF” will be
displayed in both Windows “A” and “B.”. This occurs
when the solenoid coil is kept energized.
This position cannot occur utilizing the manual handle
operator. It is only during electrical operation that both
contacts are momentarily held open via the control's
neutral time delay (TDN) feature.
Figure 4-3. Main Contacts at Neutral
Main Contacts at Standby
(Emergency)
See Figure 4-4 . Load terminals are connected to the
standby (emergency) power supply. Window “B” will
display the word “ON”; Window “A” the word “OFF”
(
Figure 4-4 ).
Figure 4-4. Main Contacts at Standby (Emergency)
Utility source selected: “A” position ON, “B” position OFF
A
Load
B Emergency “B” position
C Utility “A” position
Neutral (tripped) position: “A” and “B” positions both OFF
A
Load
B Emergency “B” position
C Utility “A” position
001250a
B
A
C
001251a
B
A
C
Emergency source selected:
“A” position OFF, “B” position ON
A Load
B Emergency “B” position
C Utility “A” position
001252a
B
A
C