Circuit Protection; Circuit Breaker Considerations - Kohler 9EKOZD Installation Manual

6.2 Circuit Protection

The AC circuit breakers (optional) protect the wiring
from the AC circuit breakers to the vessel's distribution
panel. AC circuit breakers trip when they detect a fault in
the output circuit.
After correcting the fault, reset the AC circuit breaker(s)
by placing them in the ON position. Restart the unit. Do
not start the unit under load. See Figure 6-3 for AC
circuit breaker ratings. The unit's voltage configuration
determines the circuit breaker selection.
Note: Circuit breaker ampere rating and availability are
subject to change.
6.2.1

Circuit Breaker Considerations

Mounting location. Mount the circuit breakers in the
generator set's junction box. See Section 6.2.2.
Sizing. Use the generator set voltage/frequency
configuration to determine
amperage. If the generator set voltage configuration
changes, change the circuit breaker to provide optimum
protection.
For circuit breaker
information, contact an authorized distributor/dealer.
Have a qualified electrician or technician install circuit
breakers and reconnect the generator set. Comply with
all governing standards and codes.
30 Section 6 Electrical System
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the circuit breaker
application and selection
Number
Voltage of Poles
Amps
18 480
20 250
22 250
23 480
25 250
27 250
30 250
250
250
35
480
250
40
250
42 250
250
50
250
85 250
100 250
Figure 6-3 AC Circuit Breaker Ratings, Listed By
Amps
WARNING
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the
Remove the negative (--) lead first
when disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
Disabling the generator set.
cause severe injury or death.
generator set or connected equipment, disable the generator
set as follows: (1) Move the generator set master switch to the
OFF position. (2) Disconnect the power to the battery charger.
(3) Remove the battery cables, negative (--) lead first.
Reconnect the negative (--) lead last when reconnecting the
battery. Follow these precautions to prevent starting of the
generator set by an automatic transfer switch, remote
start/stop switch, or engine start command from a remote
computer.
Model(s)
3 9EFKOZD (3 ph.)
3 11EKOZD (3 ph.)
2 5EFKOD
3 11EKOZD (3 ph.)
2 6EKOD
1 5EFKOD
1 7EFKOZD
1 7EFKOZD
2 7EFKOZD
3 11EKOZD (3 ph.)
1 9EFKOZD (1 ph.)
3 11EKOZD (3 ph.)
9EKOZD &
2
9EFKOZD (1 ph.)
2 11EKOZD (1 ph.)
1 6EKOD
1 9EKOZD
1 11EKOZD (1 ph.)
generator set.
Accidental starting can
Before working on the
TP-6773 5/12a