Emerson 7ATB User's Manual
381333–132 F
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service cal 1 800 800–2726 (ASCO) www.ascopower.com
ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3
Operator’s
Manual
7000 Series 7ATB
Automatic Transfer &
Bypass–Isolation Switches
G design 1000 through 4000 amp. sizes
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.
4000 amp. size
Refer to the outline and wiring drawings provided
with your 7000 Series ATB for all installation and
connection details and accessories.
Refer to Group 5 Controller User’s Guide 381333–126
for ATS status display messages, time delays, pickup
& dropout settings, and adjustments.
An experienced licensed electrician must install the
7ATB.
Rating Label
Each 7000 Series 7ATB 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.
Nameplate
The Transfer Switch nameplate includes data for each
specific 7000 Series ATB. Use the switch only within the
limits shown on this nameplate. A typical Catalog
Number is shown below with its elements explained:
TABLE OF CONTENTS
section-page
INSTALLATION
Mounting
1-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Connections
1-2
. . . . . . . . . . . . . . . . . . . .
Engine Starting & Auxiliary Circuits
1-2
. . . . . .
Functional Test
1-3, 1-4
. . . . . . . . . . . . . . . . . . . . .
TESTING & SERVICE
Transfer Test
2-1
. . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive Maintenance
2-1
. . . . . . . . . . . . . . . .
Disconnecting the Control er
2-1
. . . . . . . . . . . .
Manual Load Transfer
2-2
. . . . . . . . . . . . . . . . . .
Trouble-Shooting
2-2
. . . . . . . . . . . . . . . . . . . . . .
BYPASSING & ISOLATING
Bypassing the ATS
3-1
. . . . . . . . . . . . . . . . . . . .
Isolating the ATS
3-2
. . . . . . . . . . . . . . . . . . . . . .
Return to Service
3-3, 3-4
. . . . . . . . . . . . . . . . . . .
INDEX
back cover
. . . . . . . . . . . . . . . . . . . . . . . . .
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