Eaton MDN-408 Instructions For Installation, Operation And Maintenance

I.B. 2C12060H08 For more information visit: www.EatonElectrical.comInstruction BookPage 7Effective: May 2006DO NOT DISABLE REJECTION INTERLOCKS.DOING SO AND USING A LOWER CAPACITY CIR-CUIT BREAKER IN AN INCOMPATIBLE CASSETTECOULD RESULT IN AN ELECTRICAL FAULT WHICHCOULD RESULT IN DEATH, BODILY INJURYAND/OR EQUIPMENT DAMAGE.The rejection interlocks are steel pins in the floor of thecircuit breaker cassette. As the circuit breaker ispushed into the structure, the mating pins on the bottomof the circuit breaker move past a set of correspondingpins in the cassette, if the circuit breaker and cassetteare compatible. If the circuit breaker and the cassetteare mismatched, the rejection pins will block the inser-tion of the circuit breaker into the cassette before thelevering-in mechanism is engaged.Before attempting to push the circuit breaker into theDISCONNECT position, compare the positioning ofrejection interlock pins in the cassette in keeping withTable 2.2 and Figure 2-5 and the information suppliedon the circuit breaker’s nameplate. Proceed if the circuitbreaker and cassette are compatible.2-6.2 CIRCUIT BREAKER POSITIONINGMagnum DS, DSX and DSL drawout circuit breakershave four normal positions:• REMOVE (Withdrawn) (Figure 2-6)• DISCONNECT (Figure 2-7)• TEST (Figure 2-8)• CONNECT (Figure 2-9)The REMOVE position is a position outside the com-partment on the cassette’s drawout rails where the cir-cuit breaker is not engaged with the levering mecha! CAUTIONnism. The DISCONNECT, TEST, and CONNECT, posi-tions are reached by means of the levering mechanism.With the breaker solidly positioned on the cassette’sextension rails and the levering-in mechanism in theDISCONNECT position, carefully and firmly push thecircuit breaker into the compartment as far as it will go.The outer (recessed) portion of the circuit breaker faceplate should align with the GREEN target line (labelledDISC) on the inside top left wall of the cassette (Figure2-10).Figure 2-5 Cassette Rejection Interlock PinPositioning/InstallationFrom Table 2.2, make apin location comparison.Stop nuts should betorqued to 8-10 Ft.-Lb.Table 2.2 Rejection Interlock Pin Locations123 45678Pin LocationsCell For: 1 2 3 4 5 6 7 8MDN-408, 412, 416MDN-508, 512, 516MDN-608, 612, 616MDS-408, 412, 416MDS-508, 512, 516, 520MDS-608, 612, 616, 620MDS-808, 812, 816, 820MDS-C08, C12, C16, C20MDS-525MDS-625, 630, 632MDS-825, 830, 832MDS-C25, C30, C32MDS-840MDS-84NMDS-C40MDS-C4NMDS-E40MDS-E4NMDS-850, 860MDS-85N, 86NMDS-C50, C60MDS-C5N, C6NMDS-E50, E60MDS-E5N, E6NMDSL08MDSL12MDSL16MDSL20MDS-X08MSD-X12MDS-X16MDS-X20MDS-X3NMDS-X4NMDS-X5NMDS-X32MDS-X40MDS-X50XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX-LGX-LGX-LGX-LGX-LGX-LGX-LGX-LGX-LGX-LGXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXNOTE: X-LG IN TABLE 2.2 DENOTES LONG LENGTH STOP NUT 0.760 INCHES LONGwww . ElectricalPartManuals . com