Emerson E-DESIGN 150-400A User Manual
Operator’s
Automatic Closed–T ransition T ransfer Switches
Manual
DANGER is used in this manual to warn of high
voltages capable of causin g shock, burns, or death.
WARNINGisusedinthismanualtowarn
of possible personal injury.
E–design 150–400A, F–design 600–800A,
G–design 1000–4000A, F–design 3000–4000A,
7000 Series ACTS
Refer to the outline and wiring drawings provided
with your 7000 Series ACTS 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
ACTS.
CAUTIONisusedinthismanualtowarn
of possible equipment damage.
Rating Label
Each automatic closed–tran sition 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 val u e s .
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 ACTS. Use the switch only within the
limits shown on this nameplate. A typical catalog number
is shown on the next page with its elements explained.
TABLE OF CONTENTS
section-page
INSTALLATION 1-1........................
Mounting and Line Connections 1-1.........
Auxiliary Circuits and Harness 1-2...........
Engine Starting Contacts 1-2...............
Functional Test 1-2, 1-3, 1-4, 1-5.............
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.........................
150 – 400 ampere sizes
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
381333–128 D
Catalog Number Identification
Typical 7000 Series catalog no. for E–design switched neutral, 3 pole, 400 amp, 480 V, ACTS in Type 1 enclosure:
design
E
prefix
letter
7ACTS C 3 400 N 5 C
Neutral
A –solid
B –switched
C – overlapping
blank – none
power
connections
Phase Poles
2 –singleØ
3 –threeØ
field connections
terminal block TB
Amperes Voltage Controller Enclosure
150
260
400
600
800
1000
1200
1600
2000
3000
4000
A 115
B 120
C 208
D 220
E 230
F 240
G 277
H 380
J 400
K 415
L 440
M 460
N 480
P 550
Q 575
R 600
5 –standard
5X –if
accessories
ordered
C –type1
F –type3R
G –type4
L –type12
blank – open type
Transfer
Control
&lights
Dual
Transfer
Switch
power
connections
150–400 amp. sizes in typical enclosure with location of customer connections
Group 5
Controller
SECTION 1 INSTALLATION
ASCO Series 7000 Automatic Closed–Transition T ransfer
Switches are factory wired and tested. Field installatio n
simply requires mounting and connection of service
cables, and auxiliary control circuits (if required).
Remove the Shipping Skid
For large switches, open the front door and remove the
four lag screws (2 in front, 2 in rear) securing enclosure
to the wood skid.
Supporting Foundation
The supporting foundation for the enclosure must level
and straight. Refer to the applicable enclosure outline
drawing included with the ACTS for all mounting
details including door opening space.
If bottom cable entry is used, the foundation must be
prepared so that the conduit stubs are located correctl y.
Re fe r to the enclosure outline drawin g for spec if ied area
and location. Provide cable bending space and clearance
to live metal parts. When a conc rete floor is poured, use
interlocking conduit spacer caps or a wood or metal
template to maintain proper condu it alignm ent.
Mounting
Refer to the outli ne and mounting dia gram provided
with the ACTS; it shows all mounting details and
instructions.
Protect the switch from construction grit
and metal chips to prevent malfunction or
shortened life of the automatic switch switch.
Mount the ACTS vertically to a rigid support ing structure.
Level all mounting points by using flat washers behind the
holes to avoid distortion of the switch.
The controller is mounted on the cabinet door. An
add-on DIN rail is provided for some optional accessories and is mounted below controller on the door.
Auxiliary Cable Boxes
For 1000 & 1200 amp. sizes, an auxiliary cable box is
required for all (normal, emergency, & load)bottom or
top entry. Order ASCO part no. 609027 if required.
De–energize the conductors before making any
line or auxiliary circuitry connections. Be sure
that Normal and Emergency line connections
are in proper phase rotation. Place engine generator starting control in the OFF position.
Make sure engine generator is not in operation.
Testing Power Conductors
Do not connect the power conductors to the transfer
switch until they are tested. Installing power cables in
conduit, cable troughs and ceiling-suspended hangers
often requires considerable force. The pulling of cables
can damage i nsulation and stretch or break the
conductor’s strands. For this reason, after the cables are
pulled into position, and before
they should be tested to verify that they are not
defectiveorhavebeendamagedduringinstallation.
they are connected,
Connecting Power Conductors
After the power cables have been tested, connect them
to the appropriate terminal lugs on the transfer switch
as shown on the wiring diagram provided with the
switch. Makesurethelugsprovidedaresuitableforuse
with the cables being installed. Standard terminal lugs
are solderless screw type and will accept the wire sizes
listed on the drawings provided with the switch. Be
careful when stripping insulation from the cables; avoid
nicking or ringing the conductor. Remove surface
oxides from cables by cleaning with a wire brush. When
aluminum cable is used, apply joint compound t o
conductors. Tighten cable lugs to the torque specified
on rating label.
Do not run cables in front of or behind the switch.
Cablescanbebundledontherightsideoftheswitch.
Maintain proper electrical clearance between the live
metal parts and grounded metal: ½ inch minimum for
150-400 amps, 1 inch minimum over 400 amps.
It is not necessary to remove the barriers from the
transfer switches to install the cables. If you do remove
them,however, be sure to reinstall the barriers carefully.
Bus Connections
On 1000 & 1200 amp. be sure to install auxiliary
cable box if both service and load cables are
entering through the top or bottom of enclosure.
Line Connections
A Wiring Diagram is furnished with the ASCO Series
7000 ACTS (separate from this manual). Refer to this
drawing. All wiring must be made in accordance with
the National Electrical Code and local codes.
For large switches use grade 5 hardware to connect bus
to appropriate terminal plates. Wipe off the bus
surfaces before they are joined. If the bus is very dirty,
gently clean the surfaces with a non---flammable solvent.
Avoid touching the cleaned surfaces.
Do not breathe cleaning solvent vapors.
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