Customer Convenience Outlets; Derating For Altitude - Magnum MMG 125 Operating Manual

CUSTOMER CONVENIENCE OUTLETS

The generator is equipped with five convenience outlets. The large outlets are 240/120 VAC twist-lock receptacles
rated at 50 A each. The smaller outlets are 120 VAC duplex receptacles rated at 20 A each with ground fault
interrupt (GFCI) protection. These receptacles are not routed through the main circuit breaker. Each receptacle
has its own circuit breaker, located directly above or next to the outlet. Each breaker is sized to the maximum
rating of the corresponding outlet.
20A CIRCUIT 50A CIRCUIT
BREAKERS BREAKERS
120V DUPLEX 120/240V TWIST LOCK
CONVENIENCE OUTLETS CONVENIENCE OUTLETS
NOTICE
Power to the outlets is available any time the generator is running, EVEN IF THE MAIN
CIRCUIT BREAKER IS OFF "O". MAKE SURE THAT ANY EQUIPMENT CONNECTED TO
THE CONVENIENCE OUTLETS IS TURNED OFF BEFORE TURNING THE BREAKERS ON.
Make sure that the voltage selector switch is in the proper position and that the output
voltage is correct for the equipment that is connected to the outlets. Improper voltage
may cause equipment damage or malfunction.
Note: When the voltage selector switch is in position for 480/277V 3Ø, voltage at the two GFCI duplex conve-
nience outlets is 139 Volts and the voltage at the three twist-lock outlets is 240/139 Volts. When the voltage
selector switch is in position for 208/120V 3Ø, voltage at the three twist-lock outlets and the two GFCI outlets is
208/120 volts.

DERATING FOR ALTITUDE

All generator sets are subject to derating for altitude and temperature; this will reduce the available power for
operation of tools and accessories connected to the auxiliary outlets. Typical reductions in performance are 2-4%
for every 1000 ft. (305 meters) of elevation and 1% per 10º F (3-5º C) increase in ambient air temperature over 72º
F (22.2º C).
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