NOTICE
INFORMATION IN THIS INSTRUCTION LEAFLET ALSO PERTAINS TO
TYPES DS AND DSL LOW VOLTAGE POWER CIRCUIT BREAKERS.
WARNING
DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON
EQUIPMENT WHILE IT IS ENERGIZED. DEATH OR SEVERE PER-
SONAL INJURY CAN RESULT FROM CONTACT WITH ENERGIZED
EQUIPMENT. ALWAYS VERIFY THAT NO VOLTAGE IS PRESENT
BEFORE PROCEEDING WITH THE TASK, AND ALWAYS FOLLOW
GENERALLY ACCEPTED SAFETY PROCEDURES. EATON IS NOT
LIABLE FOR THE MISAPPLICATION OR MISINSTALLATION OF ITS
PRODUCTS.
Digitrip RMS
with Sealable
Plexiglass Cover
Figure 1 DSII-620 Circuit Breaker with Digitrip RMS Trip
Unit Installed
The user is cautioned to observe all recommendations,
warnings and cautions relating to the safety of personnel
and equipment, as well as all general and local health and
safety laws, codes, and procedures.
The recommendations and information contained herein
are based on experience and judgment, but should not be
considered to be all-inclusive or covering every application
or circumstance which may arise. If any questions arise,
contact Eaton for further information or instructions.
1.0 Supplementary Information
The instructions contained in this book supplement the
instructions for Low-Voltage AC Power Circuit Breakers, Type
DS and DSL covered in I.B. 33-790-1 and Types DSII and
DSLII covered in I.B. 694C694.
Section 8 of I.B. 33-790-1 covers the circuit breaker auto-
matic tripping system using Amptector solid-state trip units.
Supplement A to I.B. 33-790-1 covers Digitrip RMS models
500, 600, 700 and 800.
2.0 Digitrip RMS and Digitrip OPTIM Trip
Units
This instruction book specifically covers the application of
Digitrip RMS and Digitrip OPTIM Trip Units installed in Types
DSII and DSLII Low-Voltage Power Circuit Breakers (Figure 1).
Digitrip RMS and Digitrip OPTIM Trip Units are AC devices
that employ microprocessor based technology to provide
true RMS current sensing for proper correlation with thermal
characteristics of conductors and equipment. The primary
function of the Digitrip RMS and Digitrip OPTIM Trip Units
Effective July 2010
Instructional Leaflet IL8700C39-04
2
EATON CORPORATION www.eaton.com
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