APC AP7581 Rack PDU Extender Basic 2U 30A 208V
Overview
The APC AP7581 is a basic rack-mounted power distribution unit (PDU) designed to distribute a single high-current AC feed to multiple rack equipment outlets. Data center infrastructure teams and network engineers deploy this PDU extender to bring up to four 208 V receptacles to server, storage, network, and telecom equipment from a single branch circuit, simplifying power connectivity in rack cabinets. It is not a managed or switched PDU; rather, it provides straightforward outlet distribution where power monitoring or switching control is not required.
This unit accepts a 30 A, 200/208 V single input via a NEMA L14-30P twist-lock plug and delivers up to approximately 4.992 kVA of capacity across four NEMA L6-20R output receptacles. Its design provides a basic yet reliable method to extend a single branch power feed to multiple devices in racks requiring high-voltage distribution without the need for complex rack PDU management.
The AP7581 is built in a horizontal 2U form factor for standard 19-inch equipment racks. The included 28-foot flexible power cord enables placement above or below rack units while maintaining clearance and airflow inside the cabinet. Its horizontal mounting is suited for mid-mounting positions in racks where access to rear receptacles can facilitate equipment connections.
Because this unit is basic (non-metered, non-switched), it is appropriate for installations where power monitoring and remote control are not needed, such as branch office racks with predictable loads or secondary cabinets where a single circuit is distributed to multiple devices. It complements UPS systems and rack PDUs by splitting a single high-current feed into usable receptacles without active power conditioning.
This PDU extender is not suitable for roles requiring power metering, outlet switching, or network-based management capabilities. Installations needing advanced monitoring, per-outlet control, or redundant power feeds should select metered or switched rack PDU models instead.
Key Features
• Basic 2U rack PDU extender for 200/208 V distribution
• NEMA L14-30P 30 A input for single high-current feed
• Four NEMA L6-20R output receptacles
• 28 ft (approx. 8.5 m) power cord included
• Horizontal rackmount design with brackets
Technical Specifications
| Specification | Details |
|---|
| Brand | APC |
| Part Number | AP7581 |
| Product Type | Basic Rack PDU Extender |
| Power Capacity | ~4.992 kVA |
| Nominal Input Voltage | 200/208 V AC |
| Input Connector | NEMA L14-30P (30 A) |
| Output Receptacles | 4 × NEMA L6-20R |
| Maximum Input Current | 30 A |
| Load Capacity | 4.992 VA |
| Form Factor | Rackmount (Horizontal) |
| Rack Height | 2U |
| Cord Length | ~28 ft (~8.5 m) |
| Dimensions (H × W × D) | 3.5 × 17.2 × 3.5 in |
| Weight | ~14.0 lb |
| Mounting Hardware | Included |
| Operating Temp | 32-113 °F |
| Operating Humidity | 0-95% non-condensing |
