Vertiv Rpdu Switched Outlet Level Monitoring EC 20A 120V 1.9KW Horizontal (12) NE - VP7N21A0

Vertiv VP7N21A0 Switched Outlet-Level Monitoring PDU, 20A 120V 1.9kW Horizontal

Overview

The Vertiv VP7N21A0 is a horizontally mounted, single-phase rack PDU built for IT teams that need per-outlet switching control and real-time power monitoring in 1U of rack space. With a 20A / 120V input on a NEMA 5-20P plug and twelve individually switched NEMA 5-20R receptacles, this unit lets you remotely cycle power on any single outlet without touching the rack — a practical capability when rebooting a hung device at 2 a.m. across a remote site. The VP7N21A0 monitors current, voltage, and power at the outlet level, giving you the visibility to catch power anomalies before they become outages. An integrated LCD display lets on-site staff read load conditions without logging into the network interface.

Key Features

• Per-Outlet Remote Switching (12 x NEMA 5-20R): Each of the twelve outlets can be individually switched on, off, or power-cycled via the network interface. In a dense rack of servers, storage nodes, or network gear, this eliminates the need for a technician to physically pull a plug — critical for remote or colocation deployments where a truck roll costs real money.
• 20A / 120V Single-Phase Input with NEMA 5-20P Plug: The unit draws up to 20A at 100–120V (1.9kW maximum), sized for a standard 20A branch circuit. The NEMA 5-20P plug connects directly to a 20A dedicated circuit — verify your rack's branch circuit rating before deployment; this PDU will not accept a standard 15A NEMA 5-15 receptacle.
• Current, Power, and Voltage Monitoring: Real-time outlet-level monitoring of amps, watts, and volts means you can see exactly which devices are drawing unusual load. This data feeds directly into capacity planning — knowing you have 4A of headroom on a circuit versus guessing is the difference between a proactive upgrade and an unexpected trip breaker.
• Enterprise Protocol Stack — SNMP v1/v2c/v3, SSH, HTTPS, RADIUS, LDAP, TACACS+: The VP7N21A0 integrates into enterprise monitoring and authentication infrastructure without compromise. SNMP v3 provides authenticated, encrypted traps to your NMS. RADIUS and TACACS+ mean user credentials are managed centrally, not stored locally on each PDU — a requirement in regulated environments. SSH and HTTPS ensure management traffic is encrypted in transit.
• IPv4/IPv6 Dual-Stack with DHCP: Native IPv6 support future-proofs deployment in environments already running dual-stack networks. DHCP simplifies initial provisioning; assign a static address post-commissioning for stable SNMP polling.
• Modbus TCP Support: Beyond standard IT monitoring protocols, Modbus TCP enables integration with building management systems (BMS) and industrial SCADA platforms — useful in mixed IT/OT environments like data center floors adjacent to facility infrastructure or edge deployments in manufacturing.
• NTP, Syslog, and SMTP Alerting: NTP synchronization ensures log timestamps are accurate across your entire monitoring stack — essential for correlating PDU events with server logs during incident review. Syslog export and SMTP email alerts mean anomalies reach your NOC without requiring active polling.
• 1 x RJ-45 Ethernet, 1 x USB, 1 x Serial Port: The single Ethernet port connects to your management network. The USB and serial ports support local configuration, firmware updates, or daisy-chain environmental sensor attachment depending on firmware capabilities.
• LCD Display: The onboard LCD gives facilities staff an immediate local readout of load conditions without network access — useful during commissioning or when troubleshooting network connectivity to the PDU itself.
• 3-Meter Power Cord: The 3m (approximately 10 ft) cord provides enough reach to connect to a PDU panel or floor outlet without requiring an extension — adequate for most mid-depth rack environments, but measure your rack-to-panel distance before assuming it will reach.
• Horizontal 0U Mounting: The horizontal form factor mounts in a standard 1U rack space, keeping vertical rack units available for equipment. Confirm your rack has a dedicated 1U slot available; this unit does not mount in the vertical side-channel position.
• 50/60 Hz Compatibility: Dual-frequency input (50 or 60 Hz) means this unit operates on both North American and international power infrastructure, though the 120V nominal input limits international utility to specific regions — confirm local voltage before deploying outside North America.

Integration and Compatibility

The VP7N21A0 connects to any standards-based network management platform via SNMP v1/v2c/v3, making it compatible with tools like SolarWinds, PRTG, Nagios, Zabbix, and similar NMS platforms that support SNMP MIB imports. HTTPS and SSH provide secure browser-based and CLI access. For environments using centralized authentication, RADIUS and LDAP/TACACS+ integration removes the need to maintain local PDU user accounts. Modbus TCP opens the door to BMS integration for facilities teams tracking power consumption at the rack level. The Vertiv power management portfolio includes compatible environmental monitoring sensors and management software that can extend visibility beyond this unit. For larger deployments, review Vertiv's Avocent PDU management tools for centralized fleet oversight across multiple racks and sites.

Frequently Asked Questions

Q: Can I switch individual outlets on the VP7N21A0 remotely without affecting other outlets in the same PDU?

A: Yes. The VP7N21A0 provides per-outlet switching on all 12 NEMA 5-20R receptacles independently. You can power cycle, turn off, or turn on any single outlet via the network management interface without disrupting the remaining outlets.

Q: What authentication protocols does the VP7N21A0 support for user management?

A: The VP7N21A0 supports RADIUS, LDAP, and TACACS+ for centralized authentication, allowing you to manage PDU user access through your existing enterprise directory rather than maintaining local accounts on each unit.

Q: Does the VP7N21A0 work with standard SNMP-based network monitoring systems?

A: Yes. It supports SNMP v1, v2c, and v3. SNMP v3 adds authentication and encryption for secure trap delivery. It is compatible with any NMS platform that supports SNMP MIB imports, including SolarWinds, PRTG, Nagios, and Zabbix.

Q: What plug type does the VP7N21A0 use, and what circuit rating does it require?

A: The VP7N21A0 uses a NEMA 5-20P plug and requires a dedicated 20A / 120V branch circuit. It will not connect to a standard 15A NEMA 5-15 outlet due to the blade orientation of the 5-20P plug.

Q: Does the VP7N21A0 support IPv6?

A: Yes. The unit supports both IPv4 and IPv6 in a dual-stack configuration, along with DHCP for address assignment on either protocol version.

Q: Can the VP7N21A0 integrate with building management or industrial control systems?

A: Yes. The VP7N21A0 supports Modbus TCP, which enables integration with building management systems (BMS) and industrial SCADA or OT platforms that use the Modbus protocol for power and facility monitoring.

Ted Perry

The VP7N21A0 earns its place in any rack where remote hands aren't cheap or fast. The feature I keep coming back to is the combination of per-outlet switching and outlet-level current/voltage/power monitoring on a single 20A horizontal unit — most budget PDUs give you one or the other, not both. At 1.9kW maximum on a single 20A/120V circuit, this is sized for compute-dense edge racks, remote branch office closets, or secondary rows in a colocation cage where you've got a dedicated 20A circuit to work with.

Technical Highlights:

• SNMP v3 with RADIUS/TACACS+ Auth: Encrypted SNMP traps plus centralized credential management — you're not storing local PDU passwords that get forgotten when staff turns over. This satisfies most enterprise security audit requirements for remote power infrastructure.
• 12 x NEMA 5-20R Individually Switched Outlets: Every outlet is independently controllable. In a 12-device rack, that's the difference between remotely rebooting one hung server and having to physically intervene — meaningful when your nearest technician is 45 minutes away.
• Modbus TCP alongside SNMP: Dual-protocol support means IT and facilities teams can each pull the data they need from the same physical unit. No need to deploy a separate sub-metering sensor just for the BMS feed.

Deployment Considerations:

• The NEMA 5-20P plug requires a dedicated 20A circuit — verify the branch circuit rating at your rack before ordering. Many older facilities run 15A circuits to rack positions; this PDU cannot be plugged into a NEMA 5-15 receptacle without an adapter, which would violate the 20A rating anyway.
• Horizontal mounting consumes 1U of rack space. In fully packed racks, confirm you have a spare 1U available; the 0U vertical side-channel option is not available on this model.

The VP7N21A0 is the right call for edge data center deployments, remote branch office racks, and colocation environments where outlet-level remote reboot and real-time load monitoring need to coexist on a single 20A/120V circuit — without deploying two separate devices to accomplish what this one unit handles natively.