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Bri_s& Stratton P ower P roducts Automatic Transfer Switch
Installation
and Owner's
Manual
ESSENTIAL
CIRCUIT
ISOLATION
Essential electrical
loads are loads that will be powered by
the Home Generator
System. Essential loads are grouped
together
and wired into the transfer switch.
TO THE
INSTALLER:
Consult with Home
Generator
System owner(s)
to discuss their
"Selection of Essential Circuits", described in the
owner's manual.
Ensure that the total of the selected load circuits fed by this
transfer switch are within the generator's
rated capacity.
The following
requirements
apply to this type of isolation
system:
• The Automatic
Transfer Switch is installed after the main
distribution
panel.
• The Automatic
Transfer Switch has a load rating of
50 Amps.This
is the maximum load rating of the essential
loads.
All wiring must conform to national, state and local codes.
The illustration in Figure 2 depicts the Home Generator
System and assumes the utility is supplying 120/240Volt,
single-phase electrical service.
To Utility Power
I........
To Range
--'_-----
240V
,__.__
_--
To Water
Heater _____
,,
i
.....................
i'--
i
i
i
I
To griggs & Stratton
1
Home Generator
Unit
,,
120V To Microwave
'
120VTo Bathroom
240V To Well Pump ,
120VTo Sump Pump
,_________I
Watt
Meter
.........
.,
i
Main Distribution
Panel
-2"
Neutral
L ..................................
To Air Conditioner
(240V)
To Other
Circuits (120V)
Automatic
Transfer Switch
(in normal position)
120VTo Freezer
To Refrigerator
}
To Lights
To Furnace Blower
120V
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