Wiring Diagram And Block Info (Ak25) - ABB Emax 2 Installation And Maintenance Manual
Direct/cic replacement of legacy ge ak 600a - 4000a circuit breakers used in akd-5 & substructures
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Figure 80
Figure 81
23 - Wiring diagram and Block info (AK25)
Additional wire markers, cable ties, spade terminals, and sticky pads are provided. Refer to
the AK wiring scheme Figure 82 and land the wires on EG-fixed secondary-disconnects.
Wires are cut to size and crimped with the terminal lugs, and provided with wire markers.
Harness by cable ties is completed and overhanging wires are checked. Similar to the AKD-
5 AK25, the AKD-5 AK50 breaker roll-in replacement uses a similar wire harness and is
mounted on the cassette.
Get these tools needed for task: Philips head screw driver, wire strippers, crimps & tiewraps.
1.
Identify each bullet using the legacy wiring diagram and any changes that were made to
the legacy compartment. Four-wire ground fault CTs are wired through a dedicated
neutral disconnect vs. the secondary bullets.
2. With each bullet identified, land the non-bullet side to the corresponding feature on the
Emax 2 secondary disconnects
If a wire is too long, cut the wire, crimp a new connector, and install the provided wire
markers on the bullets.
40| © 2020 Emax 2 Retrofill Circuit Breakers 600A-4000A
AK25 Harness, Side View
AK25 C-Block Harness
Top and side mounted
secondary disconnect
wiring / connections
2TSA451011P0000 Rev-B
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