381333–272 B
50 Hanover Road, Florham Park, New Jersey 07932–1591 USA
For sales or service call 1 800 800–2726 (ASCO) w ww.ascopower.com
ASCO POWER TECHNOLOGIE S CANADA POBox 1238, 17 A irport 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’sManual

4000 Series ADTS

Automatic Delayed–Transition Transfer Switches

J–design 150–600A, H–design 800–1200A,

G–design 1600–3000A, F–design 4000A

DANGER is used in this manual to warn of high
voltages capable of causing shock, burns,or death.
WARNINGisusedinthismanualtowarn
of possible personal injury.
CAUTIONisusedinthismanualtowarn
of possible equipment damage.
Refer to the outline and wiring drawings provided
with your 4000 Series ADTS for all installation and
connection details a nd accessories.
Refer t o Group5 ControllerUser’s Guide 381333–126
for ATSsta tus display messages, time delays, pickup
& dropout settings, and adjustments.
An experi enced licens ed electrician m ust instal l the ACTS.
Rating Label
Each automatic closed–transitiontransfer switch contains a
rating label to define the loads and fault circuit withstand /
closing ratings. Refer to the labelon the t ransfer switchfor
specific values.
Do not exceed the values on the rating label.
Exceeding the rating can cause personal injury
or serious equipmentdamage.
Nameplate
The Transfer Switch nameplate includes data for each
specific 4000 Series ADTS. Use the switchonly within the
limits shownon this nameplate. A typical Catalog Number
is shown on the next page with its elements explained.
TABLE O F CONTENT S
section-page
INSTALLATION 1-1........................
Mounting and Line Connections 1-1.........
Auxiliary Circuits and Harnes s 1-2...........
Engine Starting Contacts 1-2...............
Functional Test 1-3 through 1-8..............
TESTING & SERVICE 2-1..................
Transfer Test 2-1..........................
Preventive Maintenance 2-1................
Disconnecting the Controller 2-1............
Manual Load Transfer 2-2..................
Trouble-Shooting 2-2......................
INDEX back cover.........................