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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.
CAUTION!
This Home Generator System MUST
be installed as described herein.
TO THE INSTALLER: Consult with Home
Generator System owner(s) to discuss their
"Selection of Essential Circuits", described in the
owner's manual.
Figure 11 — Typical System Diagram with Essential Circuits
240V
To Water Heater
To Briggs & Stratton
Home Generator Unit
120V To Microwave
120 V To Bathroom
240V To Well Pump
120V To Sump Pump
Briggs & Stratton Power Products Home Generator System
Installation Manual
To Utility Power
To Range
Neutral
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 the National Electrical Code,
and all state and local codes.
The illustration in Figure 11 depicts the Home Generator
System and assumes the utility is supplying 120/240 Volt,
single-phase electrical service.
Watt Meter
Main Distrubution Panel
To Air Conditioner (240V)
To Other Circuits (120V)
Automatic Transfer Switch
(in normal position)
120V To Freezer
To Refrigerator
To Lights
To Furnace Blower
10
120V
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