Vertiv Rpdu Switched Outlet Level Monitoring EC 16A or 20A 120V or 208V or 230V 1.9 - VP7U20A3

Vertiv VP7U20A3 Switched Outlet-Level Monitoring Vertical Rack PDU

Overview

The Vertiv VP7U20A3 is a vertically mounted, switched rack power distribution unit built for data center and server room operators who need granular, per-outlet power control without adding a separate management layer. Rated at 20A/3600W with a C20 input plug and a mixed bank of twelve C13 and C19 outlets, the VP7U20A3 covers everything from 1U servers to high-draw UPS bypass loads in the same 1U-wide 864mm chassis — all managed through a dual-Ethernet, protocol-rich network interface that integrates cleanly into existing data center infrastructure management (DCIM) stacks.

The unit mounts vertically in the rack, occupying the zero-U space in the rear channel — a practical choice when horizontal U-space is too valuable to dedicate to power hardware. The front-facing LCD delivers at-a-glance readings without requiring a laptop or serial cable, while the full network stack handles everything from automated alerts to integration with enterprise authentication platforms.

Key Features

• Switched Outlet-Level Control (12 Outlets): Each outlet can be toggled, sequenced, or rebooted independently over the network. For a remote hands-free restart of a hung server at 2 AM, this is the feature that pays for the unit — no physical access needed, no ticket to the NOC floor.
• 12 Outlets — Mixed C13 + C19: The mix of rack PDU C13 couplers for standard 1U/2U servers and C19 couplers for high-density blade chassis, storage arrays, or large UPS inputs means you're not locked into a single load class. One unit handles the full typical rack bill of materials.
• 20A / 3600W Maximum Input: The C20 input plug and 20A maximum current rating give you 3,600W of available capacity — enough headroom to fully populate a mixed server rack without de-rating concerns, assuming a 20A circuit feed from your PDU or UPS output.
• 100–240V Universal Input Range: The 100–240V input range means this unit drops into North American 120V environments, European 230V installations, or data center 208V three-phase tap feeds without rewiring or transformer adapters. One part number covers multiple facility power standards.
• Dual RJ-45 Ethernet Ports: Two onboard Ethernet ports support daisy-chain or dual-path network configurations — useful when you need network redundancy for the management interface or when cabling constraints favor passing the network connection from one PDU to the next in the same rack.
• Broad Protocol Stack — Including SNMP v1/v2c/v3, Modbus TCP, LDAP, RADIUS, TACACS+: SNMP v3 delivers encrypted, authenticated polling for integration with monitoring platforms like PRTG, Nagios, or SolarWinds without exposing credentials in cleartext. LDAP, RADIUS, and TACACS+ mean you can enforce your existing directory-based access control on the PDU management interface — no separate local credential set to maintain or audit.
• SSH + HTTPS Management: Both the CLI (SSH) and web UI (HTTPS) enforce encrypted sessions. HTTP and Telnet are supported for legacy environments, but the encrypted paths eliminate the plaintext management traffic that creates compliance gaps in PCI-DSS and HIPAA environments.
• LCD Display: The onboard LCD gives on-floor technicians instant load and status visibility without opening a browser or connecting a serial cable — a real time-saver during initial commissioning or when responding to a circuit alarm.
• Syslog + SMTP Alerting: The VP7U20A3 can push outlet-level events, load threshold alerts, and authentication failures directly to your syslog collector or email system. Combined with SNMP traps, this means a single power event can simultaneously alert your NMS, your on-call engineer's inbox, and your SIEM — no polling interval delay.
• NTP Time Sync: Accurate timestamping on all logged events via NTP ensures PDU event logs correlate correctly with server syslogs and security platform timestamps — an audit requirement in regulated environments.
• Compact Vertical Form Factor (51mm × 66mm face, 864mm depth): At 51mm wide and 66mm tall with an 864mm depth, this unit installs in zero-U vertical rack space. No horizontal rack units consumed, no impact to server density.

Integration and Compatibility

The VP7U20A3 supports IPv4 and IPv6 natively, so it fits modern dual-stack data center networks without additional configuration. The Modbus TCP protocol enables integration with building management systems (BMS) and DCIM platforms that use Modbus as a common data exchange layer — common in colocation and enterprise facilities. RSTP (Rapid Spanning Tree Protocol) support on the dual Ethernet ports prevents bridge loops if the PDU is wired into a managed switch environment with loop detection active.

For environments running rack power distribution at scale, the SNMP MIB structure supports bulk polling of multiple units from a single management station, and RADIUS/TACACS+ integration keeps PDU access under the same role-based authentication enforced on network devices and servers. LDAP support allows user accounts to be provisioned and deprovisioned centrally — reducing the risk of orphaned PDU credentials after staff changes.

Review data center power planning guidance to properly size circuits and breaker loads before deploying high-density PDUs in colocation or enterprise racks.

Frequently Asked Questions

Q: What input plug type does the VP7U20A3 use, and what circuit is required?

A: The VP7U20A3 uses a C20 input coupler. It requires a matching C19 receptacle on the upstream power source (UPS, RPP, or in-row PDU). The unit draws up to 20A at 100–240V, so a 20A-rated circuit feed is required — derate to 16A continuous per NEC 80% rule for code-compliant installations.

Q: Can outlets be switched individually, or only in groups?

A: The VP7U20A3 supports outlet-level switching — each of the 12 outlets can be controlled, sequenced, or rebooted independently via the web UI, SSH CLI, or SNMP. There is no requirement to group or bank-switch outlets together.

Q: What authentication protocols does the VP7U20A3 support for user management?

A: Supported authentication protocols include LDAP, RADIUS, and TACACS+. These allow the PDU management interface to authenticate users against existing enterprise directory and AAA infrastructure rather than requiring local credential management on the unit itself.

Q: Does the VP7U20A3 support IPv6?

A: Yes. The VP7U20A3 supports both IPv4 and IPv6, making it compatible with dual-stack network environments without additional configuration.

Q: What is the maximum power capacity of the VP7U20A3?

A: The unit supports up to 20A input current at 100–240V, yielding a maximum power capacity of 3,600W. For continuous operation under NEC guidelines, design circuits to operate at no more than 80% of rated capacity (16A continuous).

Q: What monitoring protocols does the VP7U20A3 support for integration with NMS platforms?

A: The VP7U20A3 supports SNMP v1, v2c, and v3 for NMS polling and trap delivery, Syslog for event forwarding to log collectors and SIEMs, SMTP for email alerting, and Modbus TCP for integration with BMS and DCIM platforms. This covers the protocol stack used by the major NMS and DCIM platforms in enterprise and colocation environments.

Eden Phillips

The VP7U20A3 is one of the more deployment-ready switched PDUs in Vertiv's vertical line — the combination of TACACS+ and RADIUS support alongside SNMP v3 is what separates it from the commodity switched PDUs that force you to manage local credentials on every unit in the row. I've worked deployments where audit teams flagged PDU access management as a gap specifically because the units only did local auth; the VP7U20A3 closes that gap out of the box.

Technical Highlights:

• 3,600W / 20A Input: The C20 input and 20A rating give you real headroom for a fully loaded mixed rack — at 80% continuous (NEC), that's 16A available to the outlets, which is comfortably above what most 1U server builds consume.
• Dual RJ-45 + RSTP: Two Ethernet ports with RSTP support mean you can wire the PDU into a redundant management network or daisy-chain units in the same rack without creating bridging loops — a detail that trips up single-port PDUs in managed switch environments.
• Mixed C13/C19 Outlet Bank: The mixed outlet types on a single 12-outlet unit mean you're not sourcing a separate PDU for the blade chassis or storage array — one unit covers the full rack, which matters when zero-U vertical space is the constraint.

Deployment Considerations:

• The C20 input coupler requires a C19 receptacle upstream — verify your UPS or RPP output bank before ordering. A C20-to-C19 adapter is a workaround but adds a potential failure point; native C19 termination is preferable.
• At 864mm depth, confirm your rack's usable rear channel depth accommodates the unit — some two-post open-frame racks and shallow-depth cabinets will not fit a full-depth vertical PDU without an extension bracket.

This unit is well-matched to colocation deployments and enterprise server rooms where PDU access must integrate with existing AAA infrastructure (RADIUS/TACACS+), where outlet-level reboot capability reduces remote hands costs, and where a mixed C13/C19 outlet bank covers the full rack load profile without a second PDU SKU.