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[ NETWORKED / SWITCHED PDUS // MODEL RECORD ]

APC NetShelter Switched Rack PDU AP7921B

Network-managed 1U switched rack PDU for 208/230 V service; eight IEC C13 receptacles. The specifications below are for this named model and region only; verify the complete product label and matching manual before deployment or service.

Original local functional schematic for APC NetShelter Switched Rack PDU AP7921B, not a product photograph
LOCAL FUNCTIONAL SCHEMATIC // NOT TO SCALE

ARCHIVAL IDENTIFICATION: Preserve the complete SKU, suffix, region, date code, revision, installed battery part (if present), firmware and physical condition. Similar model names do not establish hardware equivalence.

Specifications, conditions & service

Catalog subcategoryNetworked / switched PDUs
Topology / power pathRack power distribution with remote outlet switching; no backup inverter, battery or line conditioning.
Ratings / output configurationAPC’s product listing identifies 16 A, 208/230 V input variants (up to 3.3 kW at 208 V or 3.7 kW at 230 V); use the marked rating for exact supply. Eight IEC C13 outlets; C20 input cord/connector on the listed configuration. Output limits and input branch protection govern simultaneous load.
Battery / replaceabilityNo battery.
Runtime / limits and conditionsNo runtime; PDU is source-dependent and does not ride through an outage.
Interfaces / monitoringNetwork management for remote monitoring/control and outlet switching; exact network protocols and security features depend on model firmware and installed management module.
Safety / installation caveats230/208 V configuration is not compatible with 120 V loads unless their input supports that voltage. Check outlet voltage, branch circuit, cord and total current before connecting equipment. Switching outlets remotely interrupts loads.
Model variants / revision checksAP7921B regional connector/voltage configuration differs from AP7920B and similar AP79 models. Product listing may show alternate 208/230 V electrical values; match nameplate.

Field service / archive notes

  • Record labels and connector layout before installation; document load, input conditions, measured behavior and test date separately from manufacturer-rated values.
  • Never open energized mains equipment. Battery devices can retain dangerous voltage or high fault current; follow the manufacturer’s replacement and recycling procedure.
  • Inspect enclosure, cord, plugs, grounding, indicators, alarms and battery condition. Quarantine damaged, swollen, leaking or heat-affected equipment.
  • Network-management appliances should be isolated, updated where supported and configured with non-default credentials; do not expose legacy management interfaces directly to the public internet.

Manufacturer references

  1. Manufacturer product listing — APC NetShelter Switched Rack PDU AP7921BModel identity and product-family specification reference. Confirm exact regional SKU against the chassis label.
  2. Manufacturer manual / support documentationConsult the version matching the exact SKU. Runtime references are load- and condition-dependent estimates where supplied, never a guarantee for a particular aged unit.