IB ATS-C103
For more information visit: www.eaton.com
Instructional Booklet
Effective: March 2012
Page
27
Instructions for Installation, Operation and Maintenance of the
Eaton ATC-800 Closed/Open Transition Transfer Switch Controller
6.3.4 Transfer Switch Will Not Automatically Recharge Switches
Step 1:
Measure the voltage between terminals B15 and B14 on
the switching device that does not automatically
recharge. Is the voltage measured 120 Vac (+/- 10
volts)? Record the reading.
If YES:Refer to the magnum breaker maintenance
manual IB#2C12060 and check the electrical
operator inside the switching device.
If NO: Verify the wiring to B15 and B14.
Step 2:
If a problem persists, contact Eaton.
6.4 Replacement
Follow these procedural steps to replace the ATC-800.
Step 1:
Turn off control power at the main disconnect or isola-
tion switch of the control power supply. If the switch is
not located in view from the ATC-800, lock it out to
guard against other personnel accidentally turning it on.
Step 2:
Verify that all “foreign” power sources wired to the ATC-
800 are de-energized. These may also be present on
some of the terminal blocks.
Step 3:
Before disconnecting any wires from the unit, make sure
they are individually identified to assure that reconnec-
tion can be correctly performed. Make a sketch to help
with the task of terminal and wire identification.
Step 4:
Remove all wires and disconnect plug-type connectors.
Step 5:
Remove the 6 mounting screws holding the unit against
the door or panel. These are accessed from the rear of
the unit.
Step 6:
Carefully lay the screws aside for later use.
Step 7:
Mount the replacement unit.
Step 8:
Reverse the procedure outlined in Steps 4 and 5.
Step 9:
Using the sketch mentioned in Step 3, replace each wire
at the correct terminal, and make sure each is secure.
Make certain that each plug is securely seated
Step 10:
Restore control power.
6.5 Maintenance and Care
The ATC-800 is designed to be a self contained and maintenance
free unit. The printed circuit boards are calibrated and conformally
coated at the factory. They are intended for service by factory
trained personnel only.
NOTICE
SUPPORT THE ATC-800 FROM THE FRONT SIDE WHEN THE
SCREWS ARE LOOSENED OR REMOVED IN STEP 5. WITHOUT SUCH
SUPPORT, THE UNIT COULD FALL OR THE PANEL COULD BE DAM-
AGED.
