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Four-Lead (Single-Phase)
Generator Sets
where Generator Output can be
120/240 or 100/200 Volt, 60 Hz; or
110/220 or 100/200 Volt, 50 Hz
The following information is provided to illustrate the
proper connection of generator sets. In all cases, follow
the National Electrical Code (NEC).
When connecting a generator set to a voltage different
than nameplate voltage, place a notice on the unit
indicating this change. A decal (part no. 246242) is
available to indicate reconnected voltage from
authorized Kohler dealers/distributors.
120/240-Volt (or 110/220-Volt,
100/200-Volt) Configurations— Figure 5-1
Circuit breaker must be a circuit breaker manufacturer
two-pole circuit breaker.
breakers do not conform to NEC requirements when
supplying a 240-volt (or 220-volt) load. This is true even
if they are mechanically attached together. Leads L1
and L2 are different phases and must never be
connected together.
LO (Neutral)
Ground
Load
Side
Line
Side
4
3
2
1
Stator Leads
Figure 5-1.
Leads
L0-L1
L0-L2
L1-L2
5-2 Wiring Diagrams
NOTE
Two single-pole circuit
LO
GRD.
L2
L1
Factory
Two-Pole
Circuit
Breaker
120/240 Volt, 3 Wire
60 Hz
120 volt
110 volt
120 volt
110 volt
240 volt
220 volt
Configurations— Figure 5-2
This system uses a single-pole circuit breaker with
200-240 Volt, 2 Wire.
Stator Leads
4
3
Leads
L0-L1
50 Hz
200-240-Volt
2
1
Tape to insulate
from ground
Line
Side
Single-Pole
Circuit
Breaker
Load
Side
Ground
LO (Neutral)
Figure 5-2.
60 Hz
Not used
L1
GRD.
LO
50 Hz
200-240 volt
TP-5594 5/95
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