Honda EM6500SX Owner's Manual page 38

OPERATION
120V/240V Position
When the voltage selector switch is in the 120V/240V position, you
must balance the load. Divide the load between the two sets of
receptacles shown below. Balancing is necessary because each set of
receptacles is powered by only one power producing circuit that can
produce a maximum of amps(*).
*:
15.0 A (EM4000SX)
18.8 A (EM5000SX)
22.9 A (EM6500SX)
Set of
Receptacles
EM4000SX
① + ③ +
② +
36
Total Current Available
EM5000SX
15.0A 18.8A
15.0A 18.8A
Power Producing
EM6500SX
22.9A
22.9A
Circuit
B
A