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10 BRIGGSandSTRATTON.COM
Power Wiring Interconnections
NOTICE Improper installation could cause damage to the
circuit boards and shorten their life. Installing circuit boards
in live circuits will damage the board and is not covered by
warranty. ALWAYS disconnect ALL sources of power prior
to servicing.
• Remove all power prior to installing this equipment. Failure
to do so could cause internal damage to the board when
making electrical connections.
• Turn generator to OFF position.
• Turn off utility power to the standby generator and
transfer switch.
NOTICE All wiring must be the proper gauge, properly
supported and protected by conduit. All wiring should be
done per applicable federal, state and local codes, standards
and regulations. Obey wire type and torque specifications
printed on the terminal blocks, neutral/ground connectors,
and installation instructions. Approved for copper and
aluminum conductors.
Use installer supplied 300VAC or greater wire of a gauge that
complies with the latest version of the National Electric Code
to complete the following connections between utility power,
transfer switch, generator, main distribution panel, and
optional remote modules. Apply the necessary correction
factors and wire size calculations.
1. Set generator’s circuit breaker to OFF position.
2. Set generator’s system switch to OFF position.
3. Remove 15 Amp fuse from generator control panel.
4. Turn off utility power to the standby generator and
transfer switch.
5. Connect utility service to transfer switch’s utility
service disconnect circuit breaker terminals marked
“UTILITY CONNECTION”.
6. Connect utility service neutral to transfer switch
neutral terminal.
7. Connect main distribution panel feeder
conductors to transfer switch terminals marked
“LOAD CONNECTION”.
8. NOTICE Connect main distribution panel neutral to
transfer switch neutral terminal.
9. Connect main distribution panel ground to transfer
switch “GND” terminal.
Assure grounding electrode conductor is connected
and bonded per applicable federal, state and local
codes, standards and regulations.
10. Connect feeder conductors from transfer switch
breaker “GENERATOR CONNECTION” terminals to
generator circuit breaker LINE1 and LINE2 terminals.
Each conductor must pass through hole of current
transformer before making connection.
11. Plug current transformer leads into “CT1” and “CT2”
terminals (C) on transfer switch control board.
33
240V
11
22
44
11
22
44
120V
120V
0
Neutral
Ground
To Transfer Switch
Line 1 Neutral
Ground
Line 2
Generator
Circuit
Breaker
CT1
CT2
DPSW2
DPSW1
J6
J5
J4
J3
J2
J1
C
WARNING Shock Hazard. Installing low and high
voltage wire in same conduit could result in death,
serious injury and/or property damage.
• Do not run low and high voltage wire in the same conduit
unless the insulation rating on ALL wiring is rated for
600V. See NEC for more information.
NOT
FOR
REPRODUCTION