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Eaton ATC-900 Automatic Transfer Switch Controller Product overview

From:Eaton | author:Mr.Chen | Time :2025-08-21 | 4 view: | Share:

Product overview

The ATC-900 is a comprehensive, multi-function, microproces

sor- based automatic transfer switch controller. It is a compact,

self-contained, panel-mounted device designed to replace traditional

relay and solid state logic panels (Figure 1 and Figure 2).

The ATC-900 provides an unmatched degree of flexibility to address

the needs of any system. It has an operating voltage range of 60 to

165 VAC at 50/60 Hz (or 24 VDC when using the DCT option). The

ATC-900 can monitor commonly used single-phase or three-phase

voltages and frequencies on normal, emergency, and load buses.

The controller is available in both open and closed transition styles

and can operate most transfer switch mechanisms, including motor

operated breakers, power breakers, and contactors.

The ATC-900 has the same form factor as the ATC-600/800 and an

easy upgrade kit is available for retrofits.

Standard ATC-900 features include:

• Monitoring of normal and emergency source voltages and

frequencies

• Event summary, hi-speed capture, and history information

• Field-adjustable setpoints, including I/O

• Display of system diagnostics, real-time and historical information

through a color 4.3 inch display

• Serial communications (Modbus RTU) and a USB port. Ethernet

communication is optional.

• LED’s integrated on the faceplate for source status indication

(mimic bus)

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