Emerson Series 386 User Manual
381333–230 C
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com
ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3
telephone 519 758–8450, fax 519 758–0876, for service call 1 888 234–2726 (ASCO) www.asco.ca
Operator’s
Manual
Series 386 Electrically–Operated
Non–Automatic Transfer Switches
D–design 30 through 230 amps
DANGER is used in this manual to warn of high
voltages capable of causing shock, burns, or death.
WARNING is used in this manual to warn
of possible personal injury.
CAUTION is used in this manual to warn
of possible equipment damage.
30–200 amp sizes
Note:
Refer to the outline and wiring drawings
provided with your ASCO Series 386 Non–Automatic
Transfer Switch for all installation and connection
details and accessories.
An experienced licensed electrician must install the Non-
Automatic Transfer Switch.
Rating Label
Each Non-Automatic Transfer Switch contains a rating label
to define the loads and fault circuit withstand/closing ratings.
Refer to the label on the Transfer Switch for specific values.
Do not exceed the values on the rating label.
Exceeding the rating can cause personal injury
or serious equipment damage.
Identification Label
The identification label on the Transfer Switch includes
data for each specific ASCO Series 386. Use the switch only
within the limits shown on identification label.
TABLE OF CONTENTS
INSTALLATION
1-1
. . . . . . . . . . . . . . . . . . . . . . . .
Functional Test
1-2
. . . . . . . . . . . . . . . . . . . . . . . .
SEQUENCE OF OPERATION
2-1
. . . . . . . . . . .
TESTING & SERVICE
3-1
. . . . . . . . . . . . . . . . . .
Troubleshooting
3-2
. . . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENTS
4-1
. . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL FEATURES
5-1
. . . . . . . . . . . . . . . . .
INDEX
back cover
. . . . . . . . . . . . . . . . . . . . . . . . .