Eaton 70C1081G01 Instruction Booklet

Contents

4Instruction Booklet IL70C1080H03Effective May 2014Instructions for Field Installing Ground Fault Alarm/PowerSupply Modules into Digitrip 520M Equipped EatonMagnum and Magnum DS Circuit BreakersEATON www.eaton.comFigure 5. Components of the Trip Deck and Installation of the Digitrip Unit into a Magnum Breaker (Side View).6.3 Removing the Trip UnitTo remove the trip unit from the circuit breaker, deflect the springclip underneath the trip unit with a screwdriver. When unlocked, youwill be able to pull the trip unit straight out and, by doing so, will dis-engage the trip unit’s printed circuit board connectors K1 & K2 fromthe circuit breaker. This action should be firm, but not forced (seeFigure 5).6.4 Removing the Trip Deck Mounting PlateUsing the # 2 Phillips screwdriver, remove the two top screws thatanchor the steel trip deck plate into the mounting boss. Be carefulnot to damage the Trip Indicator Assembly (and Over Current TripSwitch / Bell Alarm if your breaker contains this option).otee:N Observe how the Trip Indicator Assembly (Figures 5 & 6) tabs arelocated BEHIND the steel mounting plate. Upon reassembly, the unit mustbe reattached in an identical manner.Next, loosen the two screws at the bottom of the steel mount-ing plate. Lift the plate upward then swing it to the left to exposethe cavity where the Ground Alarm / Power Supply Module will bemounted.Figure 6. The Trip Indicator Assembly.Trip Indicator Assembly(Over Current Trip Switch / Bell Alarm)Bell Alarm Trip IndicatorGuide PinRating Plug(3 Pins)M-4x80 mm Screw(Shown Disengaged)Guide Pin520 M Trip UnitSpring ClipSteel Mounting PlateMounting BossFrameGround AlarmPower Supply ModuleK1 Connector - Pin 1M-4 BushingK2 Connector - Pin 1Notee: Locations ofJ3 & J4 ConnectorsMounting BossNotee: Trip Indicator Stabs GoBehind the Steel Mounting Plate