Eaton ATC-100 Instructional Booklet

Also see for ATC-100: Instructional booklet Operation & maintenance manual

Contents

O & M Manual for theATC-100 Breaker Based Transfer SwitchFor more information visit: www.eaton.com IB01602018EInstructional BookletPage 10 Effective: March 2010A solid steel shield (Deadfront Cover) attached to the ratchetassembly permits viewing of the rotary switch position indicatorwhile restricting access to other parts of the power panel (Figure12).Figure 12. Vertical Design ATS Equipment with Deadfront Coverin Place Over the Power Panel (225-600 A).3.2.4 Transfer Mechanism (30-150 A)This mechanism transfers between power sources using a motor-driven arm that connects to a lever that operates both the Utilityand Generator switches (Figure 8).3.3 Voltage Selection3.3.1 North American Voltage Selection (120, 208, 240,480, and 600 V, - 60 Hz)The North American market voltage selection panel consists ofmulti-tap transformers, contained in a steel case mounted in theenclosure (Figure 13). The cover has “teardrop” holes for thescrews to allow easy access to the transformers. The voltage isselected by simply removing the wires from the default primarytaps of both transformers and installing them on the primary tapsfor the desired voltage. Taps are provided for 120 to 600 Vac tosatisfy any required North American market application voltage.The factory default position is 600 Vac.Figure 13. North American Market Voltage Selection Terminals(Shown Connected to the 120 Vac Taps).3.4 ATC-100 Logic PanelThe ATC-100 is a microprocessor-based transfer switch logic con-trol package. The hardware and software of the controller containthe intelligence/supervisory circuits that constantly monitor thecondition of the power sources. It provides the intelligence neces-sary for the operation of the ATS (Figure 14).CAUTIONWHEN CHANGING THE SELECTED VOLTAGE, THE POWER MUST BEREMOVED FROM THE ATS AND THE WIRES MUST BE MOVED ONTHE TAPS OF BOTH TRANSFORMERS.