Vertiv VA4U11A0 Monitored Rack Transfer Switch PDU, 1U, 10A/15A, 120–230V
Overview
The Vertiv VA4U11A0 is a 1U monitored rack transfer switch (rPDU) purpose-built for data center and equipment room deployments where outlet-level power monitoring and source redundancy matter. It supports both 10A and 15A input configurations across 120V, 208V, and 230V environments, making it usable across North American and international rack deployments from a single SKU. Ten IEC C13 U-Lock outlets prevent accidental disconnections — a meaningful safeguard in dense, high-availability racks where a nudged cable can take down a live workload. The VA4U11A0 occupies a single rack unit, fitting cleanly into 1U-constrained deployments without sacrificing monitoring depth.
Key Features
- Flexible Voltage and Capacity: Rated at 1.4kW at 120V, 2.4kW at 208V, and 2.3kW at 230V — the VA4U11A0 adapts to the voltage available in your facility without requiring a voltage-specific SKU. For a 10-outlet unit at 208V, 2.4kW gives you roughly 240W average headroom per port before tripping the circuit, enough for 1U servers or managed switches.
- 10x IEC C13 U-Lock Outlets: U-Lock retention physically locks standard IEC C13 cords in place, eliminating accidental pull-outs in environments with cable-dense patch panels or active maintenance activity. No proprietary lock adapters required.
- Enterprise Protocol Stack: Ships with DHCP, HTTP, HTTPS, IPv4, IPv6, LDAP, NTP, RADIUS, RSTP, SSH, SMTP, SNMP v1/v2c/v3, Syslog, and TACACS+ — the full protocol set for integration into enterprise network management, authentication (LDAP/RADIUS/TACACS+), and monitoring (SNMP/Syslog) infrastructure without add-on licenses.
- SNMP v1/v2c/v3 Support: SNMP v3 with its built-in authentication and encryption is the version required by most enterprise security policies. Polling this unit from NVR or infrastructure monitoring tools via SNMP v3 keeps power telemetry in your existing dashboards without a separate management plane.
- 50/60Hz Compatibility: Operates on both 50Hz and 60Hz mains — relevant for multi-region deployments or facilities with mixed generator and utility feeds that may not share the same frequency standard.
- 1U Form Factor, 18-Inch Depth: At 17 × 18 × 1.72 inches and 15 lbs, this unit mounts horizontally in standard 19-inch EIA racks. The 18-inch depth fits inside most mid-depth (24-inch) and full-depth (36-inch) rack enclosures without rear clearance issues.
- UL Listed and Multi-Region Certified: UL Listed 62368, CE Marked, RCM Mark, FCC Part 15 Class A, and RoHS compliant — pre-cleared for North American, European, and Australian facility requirements, reducing compliance documentation overhead on multi-site deployments.
- Operating Temperature to 60°C / 140°F: Rated for environments up to 60°C — useful in edge locations, telecom closets, or poorly cooled secondary equipment rooms where ambient temperatures can spike above typical data center norms (20–25°C). This headroom means you won't be chasing thermal deratings in hot-aisle scenarios.
Integration and Compatibility
The VA4U11A0 integrates with enterprise infrastructure management via its power management protocol stack. SNMP v1/v2c/v3 enables polling from Nagios, PRTG, Zabbix, SolarWinds, or any NMS capable of reading standard PDU MIBs. LDAP, RADIUS, and TACACS+ support ties authentication directly to your existing identity provider — no local account sprawl across individual PDU management interfaces. SSH secures CLI access; HTTPS secures the web interface. Syslog output routes events to your SIEM or log aggregation platform for audit trails. The VA4U11A0 supports both IPv4 and IPv6, relevant for facilities transitioning network infrastructure to dual-stack or pure IPv6 addressing. The unit's IEC C13 outlet format is compatible with the standard C14 power cords shipped with the majority of 1U and 2U rack servers, network switches, and storage devices — no adapters needed in most deployments. For planning rack power budgets, pairing this unit with a rack infrastructure layout that accounts for the per-outlet load limits at your chosen input voltage is recommended before commissioning.
Frequently Asked Questions
Q: What is the maximum load capacity of the VA4U11A0 at 208V?
A: At 208V, the VA4U11A0 is rated for 2.4kW. Across 10 IEC C13 outlets, that averages 240W per outlet — plan your per-device loads accordingly to stay within the circuit rating.
Q: Does the VA4U11A0 support SNMP v3?
A: Yes. The VA4U11A0 supports SNMP v1, v2c, and v3. SNMP v3 includes authentication and encryption, meeting most enterprise security policies for network-managed PDUs.
Q: What authentication protocols does the VA4U11A0 support for management access?
A: It supports LDAP, RADIUS, and TACACS+ for centralized authentication, plus SSH for encrypted CLI access and HTTPS for the web interface. Local accounts are supplemented — not required — when integrated with an enterprise identity provider.
Q: Is the VA4U11A0 compatible with international electrical systems?
A: Yes. It operates at 50Hz and 60Hz and covers input voltages from 120V through 230V (at 10A or 15A). It carries CE, RCM, and FCC certifications alongside UL listing, supporting North American, European, and Australian deployments.
Q: Will the VA4U11A0 fit in a mid-depth rack enclosure?
A: At 18 inches deep and 1.72 inches tall (1U), it fits in standard mid-depth (24-inch) and full-depth (36-inch) 19-inch EIA racks. Verify your specific rack's usable depth against the 18-inch dimension before ordering.
Q: What outlet type does the VA4U11A0 use?
A: Ten IEC C13 outlets with U-Lock retention, compatible with standard C14 power cords. U-Lock prevents accidental disconnection without requiring proprietary adapters.
The VA4U11A0 stands out in the Vertiv monitored PDU lineup specifically because of its protocol depth — LDAP, RADIUS, TACACS+, SNMP v3, SSH, and Syslog in a single 1U unit at this capacity tier is not standard for value-segment rack PDUs. If your facility security policy mandates centralized authentication and encrypted management access, this unit checks those boxes without forcing you into a higher-cost managed PDU tier.
Technical Highlights:
- Multi-Voltage Operation (1.4–2.4kW): The same SKU handles 120V/1.4kW, 208V/2.4kW, and 230V/2.3kW — useful when standardizing procurement across mixed-voltage facilities or phased build-outs where not every cabinet runs the same feed.
- U-Lock IEC C13 Outlets: Ten U-Lock C13 outlets mechanically retain standard C14 cords. In high-density racks with frequent moves, adds, and changes, this is the spec that prevents the 2 AM outage caused by a bumped power cord.
- 60°C Operating Temperature Rating: Most managed PDUs derate or void warranty above 40–45°C ambient. The VA4U11A0's 60°C ceiling gives genuine headroom for edge closets and equipment rooms where cooling is inconsistent or undersized.
Deployment Considerations:
- At 18 inches depth and 15 lbs, confirm your rack's mounting rail depth and weight capacity before installing — particularly relevant in older 2-post open-frame racks that may have shallower usable depth or lower per-U weight ratings.
- The unit supports 10A or 15A input, but the spec does not indicate this is field-selectable per circuit — verify the correct input rating against your facility's breaker and whip configuration before ordering, as this may be a factory configuration.
The VA4U11A0 is the right specification for enterprise IT closets and colocation deployments where the security team requires authenticated, encrypted PDU management and the facilities team needs a single SKU that covers both 120V North American and 208V/230V international rack feeds. It is not the unit to specify if you need higher per-outlet current ratings, DC output, or three-phase input.
