381333–319 E
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
Operator’s
Manual
Seri es 185
Automatic Transfer Switches
100 t hrou gh 400 am pe re size s
DANGER is used in this manual to warn of a
hazard situation which, if n ot avoided, will result in
death or serious injury.
WARNING is used in this manual to warn of a
hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION is used in this manual to warn of a
hazardous situation which, if not avoided, could
result in minor or moderate injury.
An experien ced licensed electric ian mu st install th e ATS.
100–230 ampere sizes
Refer to the outline and wiring drawings provided with
your ASCO Series 185 ATS for all installation details.
A SCO Series 185 A utomatic Transfer Switches (ATSs) are
Listed under Underwriter’s Laboratories Standard for
Tr ansfer Switch Equipment, UL–1008. They are intended
for use only in optional standby system s in acco rdan c e with
the National Electrical Code, NEC/NFPA 70, A rticle 702.
This AT S is for use with 2–wir e automatic – star t ge ne r ator s
only.
Refer to Application Information 381339–292 to confirm
that you have selec ted the appropriate produc t for the
intend ed instal l atio n .
This automatic transfer switch i s intended for standby
power applications in residential / light commercial use
only.
This product is not intended for emergency
or life–support systems.
If you have mor e strin g e nt applic ation requirements contact
A SCO Pow er Techno lo g ies for other produc ts suitable for
cr itic al appl ication s.
Rating Label
Eac h autom atic transfer switc h contains a rating lab el to
define the loads and fault circuit w ithstand / closing ratings.
Refer to the label on the transfer switch for specific values.
Do not e xceed the values on the rating label.
Exceeding the rating can cause person injury or
serious equipment damage.
TABLE OF CONTENTS
page
INSTALLATION 1..........................
CONTROLLER 2–5........................
FUNCTIONAL TEST 6......................
SEQUENCE OF OPERATION 7.............
TROUBLESHOOTING 8–9..................
INDEX 10.................................
