High-Voltage Second-Generation Universal (HVAC or HVDC) Power Circuit Breaker Requirements for the MX960 Router
The circuit breaker protection on all the power supplies should be designed according to National Electrical Code (NEC) of country of system installation or any similar local standard based on maximum drawn current of the power supply specified in this document.
Each high-voltage universal (MX960-PSM-HV) power supply has a single feed. The input AC or DC receptacle inlet is located on front panel of the power supply.
Each power cord feed should have dedicated circuit breakers. We recommend that size of the circuit breaker protection should be designed according to National Electrical Code (NEC) of country of system installation or any similar local standard based on maximum drawn current of the power supply specified in this document.
Use a 2-pole circuit breaker rated at minimum of 125% of the rated current per NEC or as local codes. Primary Overcurrent Protection by the Building Circuit Breaker. This breaker must protect against excess current, short circuit, and earth grounding fault in accordance with NEC which is ANSI/NFPA 70.