DC Power (240 V China) Circuit Breaker Requirements for the MX2000
Router
For PDMs, if you plan to operate a maximally configured DC-powered router, we recommend that you
provision at least 20 A @ 240 VDC (nominal) for each DC input to the system. Use a customer site 2 pole
circuit breaker rated according to respective National Electrical Code and customer site internal standards
to maintain proper level of protection for the current specified above.
If you plan to operate a DC-powered router at less than the maximum configuration, we recommend that
you provision a 2 pole circuit breaker according to respective National Electrical Code and customer site
internal standards to maintain proper level of protection for the current specified above .
If you plan to operate a DC-powered router at less than the maximum configuration, we recommend that
you provision a 2 pole circuit breaker according to respective National Electrical Code and customer site
internal standards to maintain proper level of protection for the current specified above or each DC power
supply rated for at least 125% of the continuous current that the system draws at 240 VDC.
DC Power Cable Specifications for the MX2020 Router
The cable lugs attach to the terminal studs of each PDM (see Figure 78 on page 216 and
Figure 79 on page 217).
NOTE: The MX2020 supports 4-AWG DC power cable lugs for 80-A input, and 6-AWG DC
power cable lugs for 60-A input.
Figure 78: 4-AWG DC Power Cable Lug
g007054
All measurements in inches
0.630.25
0.27
2 holes
0.55
End view
0.09
Inner diameter .28
216
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