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IB140024EN
For more information visit: www.eaton.com
Instruction Booklet
Effective: October 2014
Page
25
ATC-300/900 40-400A (480/600Vac)
3-Postion Contactor Based Transfer Switch
Section 10: ATC-300+ Controlled ATS
Quick Start Instructions
WARNING
THESE QUICK START INSTRUCTIONS ARE NOT A COMPLETE
SOURCE OF INFORMATION ON THE ATC-300+ CONTROLLED ATS
EQUIPMENT. INSTALLATION SHOULD NOT BE STARTED UNTIL
THE ENTIRE INSTRUCTION BOOK HAS BEEN REVIEWED AND
UNDERSTOOD. FAILURE TO FOLLOW THE FULL INSTRUCTIONS
CAN RESULT IN DEATH, SEVERE PERSONAL INJURY, OR PROP-
ERTY DAMAGE.
WARNING
THESE QUICK START INSTRUCTIONS ARE PROVIDED FOR USE
ONLY BY TECHNICIANS HIGHLY FAMILIAR AND EXPERIENCED
WITH ATC-300+ CONTROLLED ATS EQUIPMENT INSTALLATION,
SET UP, AND TESTING. IT IS STRONGLY SUGGESTED THAT THE
FULL INSTRUCTIONS BE FOLLOWED FOR ALL INSTALLATIONS,
SET UP, AND TESTING.
Step 1:
Mount the ATS on a flat rigid surface (Figure 17). Shim if
necessary.
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
Shim if Necessary
Figure 17. Mounting Details.
Step 2:
Install the power cables. Cables must be sized and
installed per National Electrical Code, refer to NFPA70.
The cables must be sized within the specified cable size
range on the side of the cable connectors.
Connect the cables and torque to the correct value indi-
cated on the label on the door in the following order:
1.Load Cables
*
(T1, T2, T3);
2.Source 1 or Utility Supply (N1, N2, N3); and
3.Source 2 or Generator Supply (E1, E2, E3).
For 4 pole transfer switches, connect the load cables
(TN), Source 1 or utility supply (NN), and Source 2 or
generator supply (EN). Refer to Figure 21 for the loca-
tion of all parts discussed in this document.
*Load cables MUST be connected and torqued BEFORE
installing the SUPPLY cables (Figures 18).