ABB Emax 2 Installation And Maintenance Manual page 30

Direct/cic replacement of legacy ge ak 600a - 4000a circuit breakers used in akd-5 & substructures

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Figure 55 & 56

Fig 55. Cassette Projected from Switchgear

Figure 57

The following photos show how the cassette is racked in and secured figure 60, rails

extended figure 58, racking in (figure 59)

Switchgear and Cassette assembly (Front View)

Install the pre-wired cassette in the enclosure as demonstrated in the photos, below.

Place the cassette on the rails for racking into the switchgear cabinet figure 55 & 56.

Slide the retrofit cassette into the compartment till dead-stop.

Lock the rails of the legacy compartment to ensure inner and outer rail movement.

Use legacy (old or original) AKR racking handle for inserting the retrofit cassette.

Fix legacy (old or original) racker-lock on the compartment side frame to block slide

back of sleeve.

AKD5, AKT50

Fig 56. Cassette racking on Switchgear rails

2TSA451011P0000 Rev-B

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Legacy ge ak 600a Legace ge ak 4000a