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Interior
Power Center
All Interstate models have the power center installed
at the base of the drivers side ottoman� Open the
decorative door for access to 12-
volt breakers�
The power center is a completely self-contained
120-volt power distribution and energy management
system intended to be used in recreational vehicles� It
is housed in a sheet metal enclosure with a removable
front panel� It provides circuit protection for all the
120-VAC loads in the touring coach and works with the
Energy Management System to minimize the over-
loading and tripping of circuit breakers�
Refer to Section 9 - Maintenance for important battery
maintenance information�
The power center is a centralized power switching,
fusing, and distribution center. The potential
of lethal electrical shock is present in this box.
Inadvertent shorts at this box could result in
damage and/or injury. All servicing of this box
should be done by a qualified Service Technician.
Auxiliary Fuse Locations
In addition to the 12-volt fuses and breakers described
in this section, some components have additional
fuse protection as supplied or required by their
manufacturer� These locations include:
1� LP detector: 2-amp fuse behind detector
2� Monitor panel battery voltage display: under the
roadside ottoman� (1 amp)
3� Inverter: 150-amp in-line fuse under the roadside
ottoman�
4� Rear view camera: 1�5-watt in-line fuse under
drivers seat� (#11 fuse)
5� Thermostat display: Fused to 5-amp breaker on
side of furnace
5-10
fuses and 120-
volt
WARNING
NOTE
Most fuses will require a qualified technician
to access and replace. Contact your dealer or
Airstream Service Center.
Energy Management System (EMS)
The Energy Management System is located in the front
locker behind the drivers seat� A complete, detailed
EMS manual is included with your owner's packet�
The ENERGY MANAGEMENT SYSTEM controls 120-
volt operated circuits to help keep the total 120-volt
current draw to less than 30 amps� When operating
on generator power the 120-volt draw will be less than
20 amps� These circuits may be any type load, but
are typically heavier loads, those whose use can be
"postponed" until a time when current is available for
their use�
Circuit Protection
Circuit protection for ALL 120 VAC loads are standard
residential resettable circuit breakers install in the
Power Center (120 VAC section)� Airstream has pre-
installed the correct breakers per RVIA (NEC) listing
requirements for the touring coach� The MAIN breaker
for the touring coach is 30 amp and feeds the branch-
breakers in the breaker box� Shutting off the MAIN
breaker will remove power to all branch loads, except
for receptacles on the Inverter circuit when the inverter
mode is "ENABLED"� The Inverter/converter contains a
resettable 20 amp input breaker and a 15 amp output
breaker� The remaining power center branch-breakers
feed individual loads and are defined by the label
affixed next to the breakers. The source for 120 VAC
power to the Power Center can come from either the
Shoreline plug when connected to a camp site or the
coach's own generator when running� If both sources
are "ON" the power feed to the Power Center will be
coming from the generator�
The main and general load branch-breakers are
operated similar to a light switch with up as "ON" and
down as "OFF"� If an overload condition or a short
occurs the switch will snap to the "OFF" position�
The load for this breaker will now be "OFF"� Before
resetting the breaker be aware of any device that may
have been plugged in or turned "ON" which may have
cause the breaker to overload� Unplug or turn "OFF"
the possibly faulty device before resetting the breaker�
To reset the breaker, firmly push the breaker switch
to the "OFF" position then back to the "ON" position�
If the breaker snaps back to the "OFF" position while
2020 Interstate
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