American Power Conversion MX28B-PDF manual Knock-outs, Load Connections, Load supply Load return

Revision A MX28B-PDF Product Manual

Knock-outs

Figure 3-3: Installation of Circuit Breakers

3.5 LOAD CONNECTIONS

Connection for –48VDC loads are made from standard size #10-32 two-hole lugs on 5/8” centers located directly next to the corresponding circuit breaker. The load returns connect to the –48VDC load return bus located behind each row of circuit breakers. The load return bus provides threaded holes for terminating 2-hole lugs. The return bus has provisions for 25 #10-32 lugs on 5/8” centers and 10 ¼”-20 lugs on 1” centers (all pairs can not be used simultaneously). Each DC load run should be bundled with its return for as much of the run length as possible. (Figure 3-4)

Load supply

Load return

Figure 3-4 load connections

APC 13