DC Power Circuit Breaker Requirements for the SRX5800 Services Gateway

If you plan to operate a maximally configured DC-powered services gateway, we recommend that you provision at least 116 A  (58 A per feed) @ –48 VDC (nominal) for the system. Use a customer site circuit breaker rated for 80 A (–48 VDC) minimum for each DC power supply.

If you plan to operate a DC-powered services gateway at less than the maximum configuration and do not provision a 80 A (–48 VDC) circuit breaker, we recommend that you provision a circuit breaker for each DC power supply rated for at least 125% of the continuous current that the system draws at –48 VDC.

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