American Power Conversion MX28B-PDF manual With splice plates Without splice plates

MX28B-PDF Product Manual Revision A

+48V Bus

-48V Bus without

splice plate

-48V Bus

Splice plate

With splice plates without splice plates

Figure 3-2 Bus Bars

3.4 CIRCUIT BREAKER INSTALLATION

Use diagonal cutters to cut the metal web of the breaker panel “knock-outs” at the desired breaker locations.

Note: Plug-in Breakers (60 A – 100A) require two mounting positions and a breaker adapter kit.

The breakers are installed by snapping the top terminal onto the upper bus bar and rotating the unit down until the second terminal snaps onto the breaker termination post as shown in Figure 3-

3.The breaker alarm terminals are designed to make contact with the alarm terminal board as the breaker is snapped into place.

**** CAUTION ****

During breaker installation, carefully align the alarm terminals with the alarm terminal board to avoid breaker terminal damage.

12 APC