Eaton Digitrip RMS 310, Instruction Leaflet

Page 1: ...of Operation 11 5 0 Protection Settings 11 6 0 Testing 12 7 0 Rating Plug 15 8 0 References 15 Effective December 2011 Supersedes IL29C614E 02 09 Instruction Leaflet IL29C614F Instructions for The Di...

Page 2: ...odes and procedures The recommendations and information contained herein are based on Eaton experience and judgment but should not be considered to be all inclusive or covering every application or ci...

Page 3: ...Short Delay Time Ground Fault Pick up KESxxxxLSlG Ground Fault Time 2 0 UL LISTED DEVICES The Digitrip RMS 310 Trip Unit is listed in accordance with Underwriters Laboratories Inc Standard UL489 unde...

Page 4: ...p unit conductor holes at this time If preferred a magnetic screwdriver may be used to position the screws when the trip unit is in the base Make sure shunt plates are centered over shunt plate insert...

Page 5: ...FT 8 TO 10 N M EXCESSIVE TORQUING WILL SHEAR SCREWS FAILURE TO APPLY THE REQUIRED TORQUE MAY LEAD TO EXCESSIVE HEATING AND CAUSE NUI SANCE TRIPPING OF THE CIRCUIT BREAKER Screw in and tighten three tr...

Page 6: ...rce ground or zero sequence ground fault sensing methods If the system neutral is grounded but no phase to neutral loads are used the neutral current sensor is not necessary In that case the white and...

Page 7: ...E NUI SANCE TRIPPING OF THE CIRCUIT BREAKER Screw in and tighten three trip unit retaining screws center first Torque to 6 to 8 lb ft 8 to 10 Nm see Figure 6 To install the ground fault alarm and neut...

Page 8: ...o the trip unit for the alarm leads yellow and green If only one or two sets of leads are required they can be routed to the side or rear as above or one set can be fed to the opposite side through th...

Page 9: ...to position depress the Push to Trip button with a small screwdriver and turn it clockwise one quar ter of a turn until the arrow points to ENGAGED If an adjustable rating plug is used four continuous...

Page 10: ...elay Trip Current and Short Delay Trip Time Adjustment and Curve Details Current In Short Delay Pick up Multiples of Rated Current Time 5 6 4 3 2 2 8 7 8 300 200 100 I I 100 200 300 Figure 12 3 Ground...

Page 11: ...re program then determines whether to initiate protec tion functions including tripping the breaker through the flux transfer shunt trip device in the circuit breaker A green status light indicates th...

Page 12: ...e 1 2 These ampere values are always the same no matter what rating plug is installed in the circuit breaker Available on Catalog Nos KES3xxxLSG and LSIG 5 6 GROUND FAULT TIME SETTINGS The ground faul...

Page 13: ...MS 310 Trip Units derive their operating power from the phase currents and not from the neutral current passing current through the neutral sensor will not properly test the ground fault feature Figur...

Page 14: ...ULT TRIP UNIT ANY TEMPORARY CONNECTION MADE FOR THE PURPOSE OF CONDUCTING TESTS SHOULD BE RESTORED TO PROPER OPERATING CONDITIONS BEFORE RETURNING THE BREAKER TO SERVICE CAUTION Polarity Marks Current...

Page 15: ...mary cur rent carrying conductors used with the breaker must be sized to correspond with the maximum setting of the rat ing plug in accordance with National Electrical Code requirements The Long Delay...

Page 16: ...Lockout Switch and Terminal Block GFAU Ground Fault Alarm Unit Trip Unit Functions 3 POLE 4 POLE KES3125LS KES3125LSI KES3125LSG KES3125LSIG KES4400LS KES4400LSI KES4400LSE KES4400LSIE KES3250LS KES32...

Page 17: ...In 250A 125A 150A 200A 250A In 125A 160A 225A 250A In 400A 200A 250A 300A 400A In 200A 250A 315A 400A In 250A 300A 350A 400A In Short Delay Pick up In multiples of installed rating plug amperes Adjust...

Page 18: ...on Leaflet IL29C614F Effective December 2011 Instructions forThe Digitrip RMS 310 3 Pole and 4 PoleTrip Unit Installation and Operation with K Frame Series C Circuit Breakers EATON CORPORATION www eat...

Page 19: ...on Leaflet IL29C614F Effective December 2011 Instructions forThe Digitrip RMS 310 3 Pole and 4 PoleTrip Unit Installation and Operation with K Frame Series C Circuit Breakers EATON CORPORATION www eat...

Page 20: ...information is required you should consult an authorized Eaton sales representa tive The sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eat...