Definition
AS400 power requirements describe the physical infrastructure needed to run a specific AS/400, iSeries, or IBM Power configuration. The practical checklist includes power circuits, PDU capacity, UPS runtime, rack depth, rail fit, cooling, and service clearance.
Requirements should be checked against the exact configured model, not a generic platform label, because installed options and power supply configuration can change the facilities plan. Many searches happen close to a hardware purchase, relocation, support incident, or server room upgrade, so this is often a buying-readiness signal rather than a casual definition search.
The natural follow-up is install level: basic, sustainable, or growth-ready. That choice decides whether the plan only supports the known machine, adds cleaner monitoring and tested runtime, or reserves headroom for future IBM Power, storage, network, and HA needs.