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Briggs & Stratton Power Products Automatic Transfer Switch
Installation and Operator’s Manual
Power Wiring Interconnections
All wiring must be the proper size, properly supported and
protected by conduit.
Complete the following connections between the transfer
switch, main distribution panel, utility power and generator
(Figure 4, on next page).
1. Ensure utility power is turned OFF. Connect utility
power supply leads to transfer switch terminals
marked “UTILITY CONNECTION”.
2. Connect utility neutral to the transfer switch
“NEUTRAL” terminal.
3. Connect main distribution panel power leads to transfer
switch terminals marked “LOAD CONNECTION”.
4. Connect main distribution panel neutral lead to
transfer switch “NEUTRAL” terminal.
5. Connect generator power supply leads from the
generator’s control panel to transfer switch terminals
marked “GENERATOR CONNECTION”.
6. Connect generator Neutral from the control panel to
the transfer switch “NEUTRAL” terminal.
7. Connect generator “GND” from the control panel to
the transfer switch “GND” terminal.
8. Connect main distribution panel “GND” to the
transfer switch “GND” terminal.
NOTE: Assure grounding electrode conductor is
connected and bonded per applicable federal, state and
local codes, standards and regulations.
9. Connect generator utility 240 VAC terminals to
transfer switch utility 240 VAC terminals.
10. Tighten all wire connections/fasteners to proper
torque. See inside transfer switch enclosure for proper
torque values.
Supervisory Control Wiring
Terminal strip on control module in transfer switch has
four connections for customer use.There are two sets of
“Normally Closed” contacts available.They will be opened
when generator power is required.These can be used to
lock out large loads when powered by generator. Example:
air conditioner, hot water heater, etc..
1. Terminals on control module are for installer supplied
contactors to lock out large loads. Example: air
conditioner, electric hot water heater, etc.. Contacts
are connected in series with the contactor control
circuit (Figure 5).
2. Tighten all wire connections/fasteners to proper
torque. See inside transfer switch enclosure for proper
torque values.
• Failure to follow above warning could cause personal injury,
damage and/or malfunction of equipment.
Low voltage wire cannot be installed in same
conduit as power voltage wiring.
WARNING
Figure 5 — Terminals on Control Module
Air Conditioner Contactor
Supply
Contactor
Neutral
120 VAC