Power Outlets
7-433
110 Volt Power Outlet Receptacle
Overload Shutdown
The accessory DC/AC power inverter module will turn
OFF if the current in the 110 V circuit is greater than
3.8 A for 1 s , or 2.5 A for 10 s . The module will turn ON
again, when the AC powered device is unplugged from
the outlet, and then plugged into the outlet after a 3 s
delay.
110 Volt Power Outlet Receptacle
Internal Shutdown
The accessory DC/AC power inverter module will turn
OFF if the B+ supply voltage is greater than 16.5 V or
less than 11 V. The module will also turn OFF if the
device temperature is greater than 85°C (185°F). The
module will turn ON again, after the shutdown condition
is corrected, and the AC powered device is unplugged
from the outlet, and then plugged into the outlet.
230 Volt Power Outlet Receptacle
System Description
Power Outlets Block Diagram
3403853
The alternating current (AC) accessory power outlet
system consists of the accessory DC/AC power inverter
module and the accessory power receptacle
–
220V
AC. The accessory DC/AC power inverter module
converts 12 V direct current (DC) battery power to 220
–
230 V at 50 Hertz (Hz) AC power to operate AC
powered devices. The accessory DC/AC power inverter
module provides up to 150 watts of power. The
accessory power receptacle
–
220V AC provides the
usual connection for AC powered devices.
230 Volt Power Outlet Receptacle
System Operation
The accessory DC/AC power inverter module receives
fuse protected battery voltage and is connected to the
12 V electrical system ground. The accessory power
receptacle
–
220V AC has an internal switch, that
detects when an AC powered device is plugged into the
outlet. When the ignition is ON, and an AC powered
device is plugged into the accessory power receptacle
–
220V AC, the normally open switch in the accessory
power receptacle
–
220V AC, closes. When the
accessory DC/AC power inverter module detects the
voltage from the accessory power receptacle
–
220V
AC switch, the inverter module begins to supply 220
–
230 V AC to the accessory power receptacle
–
220V AC
after a 1.5 second delay. The accessory AC power
system is protected against circuit overload and circuit
shorts to ground.
230 Volt Power Outlet Receptacle
Isolation Fault Protection
The accessory DC/AC power inverter module contains
a ground fault circuit interrupter (GFCI). GFCI monitors
the 230 V circuit for a short to vehicle chassis ground.
If a 230 V AC short to ground is detected, the accessory
DC/AC power inverter module will turn OFF. The
2021 - Silverado 4500HD, 5500HD, and 6500HD Electrical Body Builder Manual
