FIG. 5 is a close up perspective view of an underside of a portion of housing cover 110 with downwardly extending protrusions 117 and 119. An end of housing cover 110 includes protrusions 117 and 119 that extend downwardly from the bottom surface of circuit board 120. Once the electrical enclosure 100 is assembled, the protrusions 117 and 119 directly face and contact the bottom surface of the circuit board 120 (as shown in FIGS. 6B and 6C). The protrusions 117 and 119 function as a support that prevents the circuit board 120 from moving relative to housing 130 and serve to force the circuit board 120 into secure engagement with housing 130 by resting upon ledges 185 and 183 on top of side wall 134 beneath opening 181 above side wall 134.

FIG. 6A is a perspective view of electrical enclosure 100 shown in an assembled state. Housing cover 110 is positioned over housing 130 and secured to housing 130 with connectors 112. Extension 135 of circuit board 120 extends through opening 181 above side wall 134, and extension 135 is shown with electrical elements 137 above extension 135. In addition, backplane connector 133 is shown extending through the opening 181 above side wall 134 and beneath extension 135 of circuit board 120.