Eaton Digitrip RMS 510 LI Instruction Manual

Cutler-Hammer
Instructions for Digitrip RMS 510 Trip Unit

Table of Contents

1 .0 General Description ..................... 1
1 .1 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Information ............................ 2
1 .3 Testing ............................... 4
2.0 UL Listed Devices ....................... 4
3.0 Principle of Operation .................... 4
3.1 General ............................... 4
3.2 Trip and Operation Indicators .............. 5
3.3 Test Provisions ......................... 5
3.4 DIScriminator (Making Current Release) ..... 5
3.5 OVERRIDE (Fixed Instantaneous) .......... 6
3.6 Zone Interlocking ........................ 6
4.0 Protection Settings ...................... 6
4.1 General ............................... 6
4.2 Long Delay Current Settings ............... 7
4.3
Long Delay Time Settings ................. 7
4.4 Short Delay Current Settings .............. 8
4.5 Short Delay Time Settings ................ 8
4.6 Instantaneous Current Settings ............. 8
4.7 NO Instantaneous Current Settings ......... 8
4.8 Ground Fault Current Settings ............. 8
4.9 Ground Fault Time Delay Settings .......... 9
5.0 Test Procedure ........................ 10
5.1 General .............................. 10
5.2 When To Test ......................... 11
5.3 Test Provision ......................... 11
5.4 Conducting Tests ...................... 11
5.4.1 Control Power ......................... 11
5.4.2 Not Tripping the Breaker ................. 12
5.4.3 Tripping the Breaker .................... 12
6.0 Battery (I nside the Rating Plug) ........... 12
6.1 General .............................. 12
6 .2 Battery Check ......................... 12
6.3 Battery Replacement. ................... 12
7.0 Auxiliary Power Module .................. 14
8.0 Frame Ratings, (where applicable,
Sensor Ratings) and Rating Plugs ........ 14
9.0 References ........................... 15
9.1 Digitrip RMS Trip Assemblies ............. 15
9 .2
Type DS Low Voltage AC Power Circuit
Breakers ........................... 15
9.3 Type SPB Systems Pow-R Breakers ....... 15
Series C% ® R-Frame Molded Case Circuit
9.4
Breakers ........................... 15
Appendix A Zone Interlocking - Example ........... 15
Effective May 1997, Supersedes I.L. 29-885A dated Septem-
Page
DO NOT ATTEMPT TO INSTALL OR PERFORM MAIN­
TENANCE ON EQUIPMENT WHILE IT IS ENERGIZED.
DEATH OR SEVERE PERSONAL INJURY CAN
RESULT FROM CONTACT WITH ENERGIZED EQUIP­
MENT. ALWAYS VERIFY THAT NO VOLTAGE IS
PRESENT BEFORE PROCEEDING WITH THE TASK,
AND ALWAYS FOLLOW GENERALLY ACCEPTED
SAFETY PROCEDURES. CUTLER-HAMMER IS NOT
LIABLE FOR THE MISAPPLICATION OR MISINSTAL­
LATION OF ITS PRODUCTS.
It is strongly urged that the user observe all recommen­
dations, warnings and cautions relating to the safety of
personnel and equipment, as well as 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 appli­
cation or circumstance which may arise. If you have any
questions or need further information or instructions,
please contact your local representative, or the Customer
Support Center for the type of circuit breaker you have:
Circuit
Breaker
Type
DS/DSL
SPB
Series C ® R-Frame

1 .0 GENERAL DESCRIPTION

1 .1 Protection

The Digitrip RMS 5 10, illustrated in Fig. 1, is a custom
application specific integrated circuit based trip unit suit­
able for use in types DS and DSL low voltage AC power
circuit breakers and type SPB Systems Pow-R circuit
breakers and Series C ® R-Frame molded case circuit
breakers.
The Digitrip RMS 5 10 provides true RMS current sensing
for proper correlation with thermal characteristics of con­
ductors and equipment. Interchangeable rating plugs are
provided to establish the continuous current rating of
each circuit breaker.
I.L. 29-8858
A
WARNING
Call Send to
Telephone FAX
Number Number
(412) 937-6029 (412) 937-6396
(412) 937-6029 (412) 937-6396
(412) 937-6490 (412) 937-6010