Install Position Switch Actuator, Akt Breaker Retrofill Only - ABB Emax 2 Installation And Maintenance Manual

Install Position Switch Actuator, AKT Breaker Retrofill Only

Figure 50
1. Make sure that the cassette is in the disconnected state.This can be verified by checking
racking position status on window located at Left side window on frame of AKT 50
Retrofill cassette. The position switch actuator kit of AKD5 – AKT 50 retrofits must be
installed on the rear side, right-side sheet of the AKT 50 retrofill cassette.
2. Place the cassette on a work table.The cassette should be positioned such that there is
enough overhang of its side to insert the position switch actuator assembly in the
bottom of the cassette. Alternately, the installation can also be done by placing the
cassette assembly on the telescopic rails of the AKD5 compartment, being retrofitted.
3. To install the position switch actuator, slide the assembly up from the bottom of the
cassette.
4. Line up the holes on the cassette side sheet with the holes provided on the actuator
assembly.
5. Fasten the 3 M6 bolts and 6mm washers provided with the actuator assembly to the
three holes on the cassette side sheet. Two holes are placed on the side and one hole on
the rear of the cassette assembly.The position switch actuator on the cassette is now
installed and ready to be activated as soon as the breaker is racked into the
compartment.
6. Mount the cassette assembly on the rails of the AKD-5 LVS and rack the cassette into the
compartment using the legacy racking system.
Note: As the Emax 2 Retrofill breaker is racked into the cassette, and the position indicator
window reads "connected" the retrofill Position Switch actuator should activate the
compartment mounted position switch in the AKD-5 LVS.
Figure 51
2TSA451011P0000 Rev-B
Cassette Position Indicator
Indicator Position Location
(DISCONNECTED, TEST & CONNECTED)
GREEN YELLOW
AKD-5, AKT 50, Actuator for Position Switch Assembly (Exploded View)
RED
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