2.3.3 Recommended Electrical Backup Protection
A field-provided external circuit breaker must be installed upstream of the MPH2 rack PDU. The
circuit breaker must be sized according to the input rating of the PDU. The circuit breaker rating
must meet the values in Table 3.
The external circuit breaker serves as the primary input power disconnect for the MPH2.
Table 3 Upstream circuit breaker rating
Current Per Pole
of Upstream CB
20A (North America)
16A (EU, WW)
24A 30A (NA)
32A 32A (EU, WW)
40A 50A (NA)
48A 60A (NA)
63A 63A (EU, WW)