Cisco NCS4K-AC-PSU= network switch component Power supply

Up to 8 Power Supplier Units feeds the two Power Entry Module of the chassis (on top of the chassis), supporting N+N PSU Redundancy

Each AC PSU supports 3KW, with Single-phase 220V, 15A circuits

System can be upgraded during lifetime without any traffic disruption; adding PSU after PSU pending number of Line Cards used.