Eaton ATC-300 Instruction Booklet

IB01602008E For more information visit: www.eaton.com
O & M Manual for the EATON ATC-300
Breaker Based Transfer Switch
Instruction Booklet
Description Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Receiving, Handling, and Storage . . . . . . . . . . . . . . . . . 6
Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . 19
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Testing and Problem Solving . . . . . . . . . . . . . . . . . . . . 31
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Renewal Parts Guide . . . . . . . . . . . . . . . . . . . . . . . . . 34
ATC-300 Controlled ATS Quick Start Instructions . . . . . 36
Appendix A: Pickup / Dropout Tables . . . . . . . . . . . . . . 47

Eaton ATC-300 Specifications

General

Amperage	300 A
Poles	3
Current Rating	300 A
Number of Poles	3
Category	Switch
Type	Automatic
Frequency	60 Hz
Operation	Automatic