This articles clarifies the supported power supplies on SRX5400.
There is a confusion when execute CLI "show chassis hardware models" on SRX5400, the output shows "SRX5600-PWR-2520-AC-S" or "SRX5600-PWR-2400-DC-S".
root@SRX5400> show version Hostname: SRX5400 Model: srx5400 JUNOS Software Release [12.1X46-D15.2] root@SRX5400> show chassis hardware Hardware inventory: Item Version Part number Serial number Description Chassis JN1234567890 SRX5400 Midplane REV 01 760-052903 A1234567 SRX5400 Midplane FPM Board REV 01 760-052300 C1234567 Front Panel Display PEM 0 Rev 03 740-034701 Q12345678901 PS 1.4-2.6kW; 90-264V AC in PEM 1 Rev 03 740-034701 Q12345678902 PS 1.4-2.6kW; 90-264V AC in Routing Engine 0 REV 11 740-023530 1234567890 SRX5k RE-13-20 CB 0 REV 09 710-024802 C1234567 SRX5k SCB FPC 1 REV 07 750-043157 C1234568 SRX5k IOC II CPU REV 08 711-043360 C1234569 SRX5k MPC PMB FPC 2 REV 17 750-044175 CA123456 SRX5k SPC II CPU BUILTIN BUILTIN SRX5k DPC PPC PIC 0 BUILTIN BUILTIN SPU Cp PIC 1 BUILTIN BUILTIN SPU Flow PIC 2 BUILTIN BUILTIN SPU Flow PIC 3 BUILTIN BUILTIN SPU Flow Fan Tray 0 REV 01 760-052301 CAB12345 Enhanced Fan Tray root@SRX5400> show chassis hardware models Hardware inventory: Item Version Part number Serial number FRU model number Midplane REV 01 760-052903 A1234567 SRX5400-CHAS FPM Board REV 01 760-052300 C1234567 SRX5400-CRAFT PEM 0 Rev 03 740-034701 Q12345678901 SRX5600-PWR-2520-AC-S PEM 1 Rev 03 740-034701 Q12345678902 SRX5600-PWR-2520-AC-S Routing Engine 0 REV 11 740-023530 1234567890 SRX5K-RE-13-20-A CB 0 REV 09 710-024802 C1234567 SRX5K-SCB-A FPC 1 REV 07 750-043157 C1234568 SRX5K-MPC FPC 2 REV 17 750-044175 CA123456 SRX5K-SPC-4-15-320 CPU BUILTIN BUILTIN Fan Tray 0 REV 01 760-052301 CAB12345 SRX5400-FAN
SRX5400 and SRX5600 use the same power supplies, and the following FRU model numbers are available.