AK-75 & AK-100 Breakers
1.The ProTrip phase sensors mount on the upper breaker studs, as shown in Figure 21. The sen- sors held on the stud with locking rings. Leave enough of the stud exposed for the primary fin- gers to engage. Engage the sensor’s antiturn lugs with the notch in the locking ring. Before tightening the locking rings, position each sensor so that its leads exit between the pole bases, as shown.
2.Mount the three sensor terminal boards to the rear of the back frame using the hardware pro- vided.
3.Form each sensor’s leads downward between the pole bases.
Figure 21. Phase sensor installation on AK-75 & AK-100 breakers.
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