Emax Low voltage air circuit-breakers - ABB Download Center

Overall dimensionsMechanical interlockInterlock assemblyType AHorizontalVerticalType B(emergencyinterlock below)Horizontal VerticalType B(emergency interlockin the middle)Horizontal VerticalType B(emergency interlockabove)Horizontal VerticalType CHorizontal Vertical1SDC200229F0001Type DHorizontal VerticalNotes– When fitting interlocks between two circuitbreakers,it is necessary to make suitableholes (through the switchboard) in themounting surface for fixed circuit-breakers orfor the fixed part of withdrawable circuitbreakersin order to pass through the flexiblecables, observing the measurements shownin the figures on pages 7/7 and 7/14.For vertical interlocks, align the right-handsides vertically and reduce the bends in theflexible cables to a minimum (radius R. 70mm). All the angle values of the bends whichthe cable passes through added togethermust not exceed 720°.– It is possible to make the mechanicalinterlock among three circuit-breakersdisposed in “L position” by using the cablesof three horizontal circuit-breakers interlock.Make sure the distance between thehorizontal and vertical circuit-breakersrespects the minimum and maximumdistance.1SDC200230F0001Horizontal interlocksMaximum distance between two interlocks 1200 mmfrom one interlock to the other. The cables pass underthe fixed parts, following the same connection layoutshown for vertical circuit-breakers.Extended cables are also availableMechanical Standard ExtendedInterlock cables cablesHR 1200 mm 1200÷1600 mmVR 500÷750 mm 750÷1000 mm7ABB SACE 7/15