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IB01602078E
Instruction Booklet
Page
16
Effective: September 2011
40-400A (480/600Vac) ATC-300+ 3-Postion
Contactor Based Transfer Switch
With the enclosed ATS equipment unpacked and ready for
mounting, proceed with the following steps.
Step 1:
The ATS enclosure door is hinge mounted with remov-
able hinge pins. To simplify the mounting procedure and
avoid damaging the door-mounted logic panel, it is
strongly suggested that the door be carefully removed
and put it in a safe place until mounting is complete. To
remove the door, open the door and disconnect the con-
nectors at the back of the ATC-300+ logic panel.
Remove the wire ties securing the harness to the inside
of the door. Carefully remove the hinge pins then the
door from the enclosure.
Step 2:
Install the required upper and lower mounting bolt
anchors and the two upper mounting bolts in the mount-
ing surface.
Step 3:
Gently lift the enclosure and guide the teardrop holes in
the upper mounting flange over the upper mounting
bolts. Do not completely tighten the bolts at this time.
Step 4:
While still supporting the enclosure, install the two lower
mounting bolts in the lower mounting flange. Again, do
not completely tighten the bolts at this time. Use shims,
if required, to prevent deformation of the enclosure if the
mounting surface is distorted.
Step 5:
Tighten all four mounting bolts after any required shim-
ming is completed.
ATC-300
Electrical
ase
ase
Source 1
Source 2
Available
Available
Connected
Connected
Load
Unit Status
Alarm
Reset
Engine
Test
Lamp
Test
Help
Step
Enter
Bypass
TDNE / TDEN
Figure 11.Typical Mounting of the ATS to a Mounting Surface.
Step 6:
Double check to ensure that all packing and shipping
materials have been removed.
4.4 Power Cable Connections
WARNING
POWER CONDUCTORS MAY HAVE VOLTAGE PRESENT THAT CAN
CAUSE SEVERE PERSONAL INJURY OR DEATH. DE-ENERGIZE ALL
POWER OR CONTROL CIRCUIT CONDUCTORS TO BE CONNECTED
TO THE ATS EQUIPMENT BEFORE BEGINNING TO WORK WITH THE
CONDUCTORS AND/OR TERMINATING THEM TO THE EQUIPMENT.
CAUTION
USE OF CABLE LUGS NOT DESIGNED FOR THE ATS MAY CAUSE
HEATING PROBLEMS.
CAUTION
TO HELP PREVENT COMPONENT DAMAGE OR FUTURE MALFUNC-
TIONS, USE EXTREME CARE TO KEEP CONTAMINANTS OUT OF
THE ATS EQUIPMENT WHEN MAKING POWER CABLE CONNEC-
TIONS.
CAUTION
RUN THE POWER CABLE THROUGH THE GUTTER SPACE PROVIDED
TO THE RIGHT OR LEFT OF POWER PANEL.
Test all power cables prior to connection to the unit to ensure
that the conductors or cable insulation have not been damaged
while being pulled into position.
Power cables are to be connected to solderless screw type lugs
located on the ATS switching devices. Refer to the separate Cus-
tomer Wiring Booklet supplied with the ATS equipment for power
termination. Verify that the lugs supplied will accommodate the
power cables being used. Also verify that the cables comply with
local electrical codes. Standard ATS equipment, as supplied from
the factory, will accommodate the wire sizes shown in Table 4.
Carefully strip the insulation from the power cables to avoid nick-
ing or ringing of the conductor strands. Prepare the stripped con-
ductor termination end by cleaning it with a wire brush. If
aluminum conductors are used, apply an appropriate joint com-
pound to the clean conductor surface area.
WARNING
IMPROPER POWER CABLE CONNECTIONS CAN CAUSE EXCESSIVE
HEAT AND SUBSEQUENT EQUIPMENT FAILURE.
Tighten the cable lugs to the torque identified on the label affixed
to the door of the unit.
