Eaton Digitrip RMS 510 Instruction Leaflet

Also see for Cutler-Hammer Digitrip RMS 510: Instructions Instructional Leaflet Instructions

9Instruction Leaflet I. L. 29-885DEffective August 2011Instructions for Digitrip RMS 510 Trip UnitEATON CORPORATION www.eaton.com• The "Must Use With Frame Rated" current value (or "SensorRated", if applicable),and• " In (rated I)=" current valueThis latter value (In) is the basis for the Trip Unit current settings:• The instantaneous and Ground Current Settings (if applicable) aremultiples of (In) (see Sections 3 6 and 3 8 )• The Long Delay Current Setting, Ir is a multiple of (In) LongDelay Current Setting = Ir = LD x (In) (see Section 3 2 )• The Short Delay Current Setting (if provided) is a multiple of Irwhich in turn is a multiple of (In) Short Delay Current Setting =SD x Ir = SD x LD x (In) (see Section 3 4)If the rating plug is missing or not well connected the instanta-neous / override LED will be lit If the circuit breaker is closed, itwill trip If the rating plug condition is not corrected, as soon as thethree-phase current through the circuit breaker reaches 20% (40%if single-phase current) of the frame / current sensor rating, the TripUnit will trip the breaker againAs indicated in Figures 2 and 9, a back-up battery is provided tomaintain the mode of trip LED indication in the Digitrip RMS 510 TripUnit when external control power to the Power / Relay module is notavailable The back-up battery is located in the rating plug along witha battery check push-button and a green battery check LED The bat-tery in the rating plug is "OK" if the LED lights "Green" when the "bat-tery check" button next to it is pushed (see Section 4 5)otee:N The back-up battery is used only to maintain the cause of TRIP LEDindication It has NO part in the PROTECTION FUNCTION of the Trip Unit1.3 Auxiliary Power ModuleThe Auxiliary Power Module or APM (Cat No PRTAAPM), illustratedin Figure 10, is an encapsulated power supply that requires a 120 Vacinput at either 50 or 60 Hz It provides an output of 32 Vdc (nomi-nal 40 Vdc open circuit) which is used during testing of the DigitripRMS 510 Trip Unit, When a drawout circuit breaker is equipped witha Digitrip RMS 510 Trip Unit, it can be conveniently set and testedwhile the circuit breaker is either out of its cell or in its cell in the"Test", "Disconnect", or "Withdrawn" positions by using the AuxiliaryPower ModuleThe Auxiliary Power Module is equipped with a unique plug-in con-nector suitable only for plugging in to the keyed receptacle in theupper right corner of a Digitrip RMS Trip Unit as shown in Figure 2This avoids the inadvertent use of an incorrect type power moduleThe APM is suitable for use with older Digitrip RMS 500, 600, 700,800, as well as newer RMS 510, 610, 810, and 910 ModelsFigure 10. Auxiliary Power Module.2 UL Listed DevicesDigitrip RMS 510 Trip Units are "Listed" by the UnderwritersLaboratories, Inc ® under UL File E7819, for use in types DS, DSL,SPB, and Series C® R-Frame circuit breakersPlug for 120VacReceptacleTrip Unit Connector (Fits into KeyedCavity in Top Right Corner of TripUnit See Figure 2)