What it powers on the NJ rack
The Omron NJ-PD3001 is the dedicated power supply module for the NJ series of machine controllers, accepting 24 VDC on the field side and delivering 5 VDC at 6 A (30 W) onto the CPU bus so an NJ CPU unit and its local backplane can run from a single supply. The 24 VDC input is rated for a 19.2 to 28.8 V working window, which means a standard 24 VDC cabinet supply sits well inside the input range with margin for charger droop and cable loss on long runs into the panel. Output is sized at 5 VDC, 6 A, 30 W — that 30 W figure is the one that decides which NJ CPU configurations this supply can feed, and it's the rating to match against the system's bus budget rather than against a generic 24 V load.
Panel-side fit
Operating temperature is rated 0°C to 55°C, so a cabinet near a heat source still sits within the listed range; derating curves apply past the upper limit and are not in the headline spec.
The NJ-PD3001 is active in production, so the BOM line can be specified without a last-time-buy clock and a spare can be held against a line-down event. No phase-out or successor appears in the evidence; quoting is to order against an RFQ.