Eaton Cutler-Hammer Digitrip RMS 610 Instruction Leaflet Download Page 1

Effective August 2011
Supersedes I.L. 29-889A 5/97

Instruction Leaflet 

I. L. 29-886B

Instructions for Digitrip RMS 610 Trip Unit

Summary of Contents for Cutler-Hammer Digitrip RMS 610

Page 1: ...Effective August 2011 Supersedes I L 29 889A 5 97 Instruction Leaflet I L 29 886B Instructions for Digitrip RMS 610 Trip Unit...

Page 2: ...Replacing the Back up Battery 20 5 References 20 5 1 Digitrip RMS Trip Assemblies 20 5 2 Type DS Low Voltage AC Power Circuit Breakers 20 5 3 Type DS II Low Voltage AC Power Circuit Breakers 20 5 4 Ty...

Page 3: ...considered to be all inclusive or covering every application or circumstance which may arise If you have any questions or need further information or instructions please contact your local representa...

Page 4: ...rs provide the correct input information for the protector func tions as well as tripping power whenever the circuit breaker is carrying current These signals develop analog voltages across the approp...

Page 5: ...ate its protection systems It operates from current signal levels and control power derived through current sensors inte grally mounted in the circuit breaker The Digitrip RMS 610 Trip Unit is availab...

Page 6: ...1 1 Ground Fault Protection Adj Current Setting Pick up Adj Time Delay Setting Opt I Squared T Curve Shape Opt Zone Interlocking Ground Fault Time Memory X X X X X X X X X X X X X X X 3 8 3 9 3 9 1 1...

Page 7: ...Effective August 2011 Instructions for Digitrip RMS 610Trip Unit eaton corporation www eaton com Figure 3 Digitrip RMS 610 Type Ll Figure 4 Digitrip RMS 610 Type LS Figure 5 Digitrip RMS 610 Type LSI...

Page 8: ...current exceeds approximately 10 of the circuit breaker frame or current sensor rating Whenever the load current falls below 10 the discriminator is rearmed The release once rearmed will remain enabl...

Page 9: ...the other breaker F can not cause breaker M to trip caution IF ZONE INTERLOCKING IS NOT TO BE USED I E STANDARD TIME DELAY COORDINATION ONLY IS INTENDED THE ZONE INTERLOCKING TERMINALS MUST BE CONNECT...

Page 10: ...Phase B Current lb kA Phase C Current lc kA X X X X X X X X X X X X X X X X X X Ground Current lg kA Neutral Current ld kA n n n X X X 1 2 1 1 Local Messages Table 3 DISC DISCriminator GNDT GrouND Tri...

Page 11: ...mory error Protection functions still operate but may be up to 12 out of tolerance Replace trip unit at first opportunity 1 2 2 1 SDT Short Time Delay Trip Breaker tripped because phase current exceed...

Page 12: ...still function to protect the circuit but the calibration may be degraded by a few percent The Time Current Curve tolerances may be exceed ed in some cases by as much as 12 It is not necessary to tri...

Page 13: ...60 640 680 720 760 800 A Plug In 1600 A LDPU Ir 800 960 1120 1280 1360 1440 1520 1600 A Note N Rating plugs from Digitrip models 500 600 700 800 CANNOT be used with model 610 Trip Units The connection...

Page 14: ...as appli cable Even without available external control power once the load cur rent through the circuit breaker exceeds approximately 20 40 if single phase of the frame current sensor rating the green...

Page 15: ...Rating of the cir cuit breaker Instantaneous and ground current settings are defined in multiples of In To illustrate the effect of each protection curve setting simulated Time Current curves are pict...

Page 16: ...Curve referenced in Section 5 Figure 14 Short Delay Current Settings Available Settings 12 15 20 24 I Seconds at 6 Times 6 x Long Time Delay Sec at 6 x Ir Ir 4 I r Long Delay Setting 2 4 7 10 S1 and...

Page 17: ...0 1200 5000 1200 1200 1200 1200 1200 1200 1200 1200 Tolerances on settings are 10 of values shown Refer to Type DS Type SPB or Series C R Frame supplemental instruction leaflets given in Section 5 for...

Page 18: ...ts of the Trip Unit and two settings GF and GFT are provided for testing the ground element Figure 19 Integral Test Panel Lower Right Corner of Trip Unit caution A SETTING OF EITHER 6T OR GFT WILL TRI...

Page 19: ...lly affect ground fault test results but if Ground Fault tests are repeated quickly the GTM can make the breaker appear to trip too soon Note N To STOP a TEST initiated via the integral test panel PRE...

Page 20: ...F THE 120 VAC CONTROL POWER TO THE POWER RELAY MODULE IS LOST THEN AFTER AN OVER CURRENT OR SHORT CIRCUIT TRIP NO LEDS WILL BE LIGHTED RED TO INDICATE THE REASON FOR THE TRIP The replacement battery s...

Page 21: ...the event that the feeder breaker Z2 would not clear the fault the main breaker Z1 will clear the fault in 0 5 s as above Fault 1 There are no interlocking signals The main breaker trip unit will init...

Page 22: ...power to the load circuit Note N As the current approached the overload condition prior to the overload trip operation the following Trip Unit indications would have been visible The HILD message wou...

Page 23: ...23 Instruction Leaflet I L 29 886B Effective August 2011 Instructions for Digitrip RMS 610Trip Unit eaton corporation www eaton com Notes...

Page 24: ...between the parties This literature is not intended to and does not enlarge or add to any such contract The sole source governing the rights and remedies of any purchaser of this equipment is the con...

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