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IB140012EN
Instructional Booklet
Page
2
Effective: March 2021
Operation and Maintenance Manual,
Automatic Transfer Switch Controller, ATC-900
All possible contingencies which may arise during installation,
operation, or maintenance, and all details and variations of this
equipment do not purport to be covered by these instructions. If
further information is desired by purchaser regarding his particular
installation, operation or maintenance of his equipment, the local
Eaton representative should be contacted.
Eaton Disclaimer and Warning
Section 1: Introduction
Description
Eaton’s ATC-900 brings intelligence, adaptability, supervisory and
programming capabilities to automatic transfer switch equipment.
The smartEST (smart Eaton Switch Technology) brings a new
standard in Automatic Transfer Switches.
Extreme reliability makes the ATC-900 ideal for mission critical
applications in healthcare, wastewater, data center and other
industries. Typically used for utility-to-utility, utility-to-generator,
generator-to-generator and three source transfer systems, the
ATC-900 can address virtually any system requirements.
Ease-of-use is a major benefit of the ATC-900 controller. With a
simple, powerful user interface, many intuitive operating features
are included. LED indications and a TFT based color display pro-
vide high visibility. Simple arrow keys are used for quick screen
navigation. No codes or abbreviations are used to avoid potential
confusion and/or slow operation, and data screens are grouped for
ease of viewing and edits.
The ATC-900 is available in one standard model that offers a vari-
ety of monitoring and control features such as selective and auto-
matic load shedding, remote load testing, and event logging/
recording. Flexibility is another important benefit, allowing field
configurability and expandability in the future with add-on acces-
sory modules and hardware. There is also an easy upgrade kit
from the ATC-600/800 to the ATC-900.
1.1 Preliminary Comments and Safety Precautions
This technical document is intended to cover most aspects associ-
ated with the installation, application, operation, and maintenance
of the ATC-900. It is provided as a guide for authorized and quali-
fied personnel only in the selection and application of the ATC-
900. Please refer to the specific WARNING and CAUTION in Sec-
tion 1.1.2 before proceeding.
If further information is required by the purchaser regarding a par-
ticular installation, application, or maintenance activity, an Eaton
representative should be contacted.
1.1.1 Warranty and Liability Information
NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WAR-
RANTIES OF FITNESS FOR A PARTICULAR PURPOSE OF MER-
CHANTABILITY, OR WARRANTIES ARISING FROM COURSE OF
DEALING OR USAGE OF TRADE, ARE MADE REGARDING THE
INFORMATION, RECOMMENDATIONS AND DESCRIPTIONS CON-
TAINED HEREIN. In no event will Eaton be responsible to the pur-
chaser or user in contract, in tort (including negligence), strict
liability or otherwise for any special, indirect, incidental or conse-
quential damage or loss whatsoever, including but not limited to
damage or loss of use of equipment, plant or power system, cost
of capital, loss of power, additional expenses in the use of existing
power facilities, or claims against the purchaser or user by its cus-
tomers resulting from the use of the information and descriptions
contained herein. analyze all aspects of the application,follow
applicable industry standards, and follow the information concern-
ing the product in the current product catalog and in any other
materials
1.1.2 Safety Precautions
All safety codes, safety standards, and/or regulations must be
strictly observed in the installation, operation, and maintenance of
this device.
CAUTION
THE ATC-900 IS FACTORY PROGRAMMED FOR A SPECIFIC TRANS-
FER SWITCH. DO NOT ATTEMPT TO INTERCHANGE ATC-900 CON-
TROL DEVICES WITHOUT CONSULTING THE FACTORY.
WARNING
USER RESPONSIBILITY - IMPROPER SELECTION, USE OR MAINTE-
NANCE OF THE SYSTEM, PRODUCTS OR COMPONENTS DESCRIBED
IN THIS CATALOG MAY CAUSE OR RESULT IN DEATH, PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
This document and other information from Eaton, its subsidiaries
and authorized distributors provide product or system options for
users having technical expertise.
This product is not intended for users who do not have technical
expertise. The user, through its own analysis and testing, is
solely responsible for making the final selection of the system
and components and assuring that all performance, endurance,
maintenance, safety and warning requirements of the application
are met. The user must analyze all aspect of the application, fol-
low applicable industry standards, and follow the information
concerning the product in the current product catalog and in any
other materials provided from Eaton or its subsidiaries or autho-
rized distributors.
To the extent that Eaton or its subsidiaries or authorized distribu-
tors provide component or system options based upon data or
specifications provided by the user, the user is responsible for
determining that such data and specifications are suitable and
sufficient for all appliations and all reasonable foreseeable uses
of the components or systems.
NOTICE
DURING CONVERSATIONS WITH EATON CONCERNING TROUBLE-
SHOOTING OR PRODUCT RETURN, THE CUSTOMER MAY BE ASKED
FOR INFORMATION PERTAINING TO THE SOFTWARE VERSION AND
OPTIONS INCLUDED IN THE SPECIFIC UNIT. THE SYSTEM INFO
SCREEN HAS THE DATA REQUIRED FOR THE CONTROLLER. IF THE
CONTROLLER IS NOT FUNCTIONAL USE THE LABEL ON THE BACK
OF THE UNIT..
WARNING
THE WARNINGS AND CAUTIONS INCLUDED AS PART OF THE PRO-
CEDURAL STEPS IN THIS DOCUMENT ARE FOR PERSONNEL SAFETY
AND PROTECTION OF EQUIPMENT FROM DAMAGE.
WARNING
COMPLETELY READ AND UNDERSTAND THE MATERIAL PRE-
SENTED IN THIS DOCUMENT BEFORE ATTEMPTING INSTALLATION,
OPERATION OR APPLICATION OF THE EQUIPMENT. IN ADDITION,
ONLY QUALIFIED PERSONS SHOULD BE PERMITTED TO PERFORM
ANY WORK ASSOCIATED WITH THE EQUIPMENT. ANY WIRING
INSTRUCTIONS PRESENTED IN THIS DOCUMENT MUST BE FOL-
LOWED PRECISELY. FAILURE TO DO SO COULD CAUSE BODILY
INJURY, DEATH AND/OR PERMANENT EQUIPMENT DAMAGE.
