GE Industrial Solutions Spectra Series Power Panelboards AMCB6TEDL - Manual (Page 3)

Figure 5b. Isometric view of Figure 5a.
6. Install the circuit breakers and current limiters. Since
these assemblies are for branch operations, mount the
breaker so that the line or ON-side terminals rest on the
straps and the opposite side rests on the mounting bracket.
Align the holes in the circuit breaker housing with the
corresponding holes in the mounting bracket. Fasten the
breaker to the bracket with the machine screw [7] and
washer [9], and tighten to 50 in-lb. Join the circuit
breaker terminals to the threaded holes in the straps with
the shakeproof #10-32 screws [8]. Tighten each terminal
connection to 75 in-lb. The straps may require minor
adjustments for proper alignment of the mounting holes.
7. Tape unused straps. Apply multiple wrappings of
insulation to the unused strap contact surfaces, as shown
in Figure 7. A UL or CSA Recognized 105
° C
thermoplastic tape (OANZ2) is required. Overlap more
than one-half of the preceding turns, as shown, to achieve
a minimum tape thickness of 0.028 inch. This insulation
thickness requires two complete layers of overlapping
turns.
8. Tighten the bolted connections. Tighten the bolted strap
connections at the vertical bus to 65 in-lb. It may be
necessary to remove an adjacent circuit breaker to allow
access to the bolted connections at the vertical bus.
Figure 6. Mounting the circuit breakers and current limiters.