8 • 301
Electrical Systems
2004 • LaPalma
The AC distribution panel is located in the bedroom. The main AC panel
120 Volt circuit breakers receive power from the transfer switch, which is
powered by either shore power or the on board generator. Power is
introduced into the panel to the 50 Amp MAIN breaker first, followed by
power being fed into the individual branch circuit breakers. The panel label
describes the breaker layout and the item, outlet or appliance to which they
pertain.
WARNING: This panel contains high voltage which can cause
serious injury or death. Before beginning any work or testing
procedures involving the electric panels, or any of the branch
circuits, be sure the motorhome is unplugged from shore
power and the generator is not running. Certain testing
procedures can require the AC power to be on. Only qualified
personnel or personnel with electrical backgrounds should
attempt any testing procedures.
Branch circuit breakers supply AC power to the different items or “loads.”
An electrical load is any item or device that will use current when supplied
with an electromotive force. Should a breaker “trip” from over current use, or
a short circuit condition, the load to which the breaker is supplying the
electromotive force should be reviewed or disconnected to determine the cause
of the trip. If no cause is found, or not readily apparent, reset the breaker by
toggling the breaker to the OFF position, then back to ON. Should the breaker
trip again after the load is reapplied it may indicate a fault with that particular
load. Do not continue to reset breaker until the problem has been diagnosed
and corrected.
Breaker current ratings are current set points in which the breaker is
designed to operate. The internal configuration of the circuit breaker is
designed to trip when excess current is drawn through the breaker. The trip
action of the circuit breaker can occur within milliseconds due to the speed at
which electricity can travel. Breaker ratings are set to operate on a continuous
50 AMP
DISTRIBUTION
PANEL (OPTIONAL)
House 110 AC
Panel
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