Vertiv Rpdu Switched Outlet Level Monitoring EC 30A 120/208V WYE 8.6KW Horizontal - VP7N31A2

Vertiv VP7N31A2 Switched Outlet-Level Monitoring PDU, 30A Three-Phase Horizontal Rackmount

Overview

The Vertiv VP7N31A2 is a horizontal, zero-U rack power distribution unit built for data center operators and enterprise IT teams who need per-outlet switching and real-time monitoring across a three-phase 30A circuit. Rated at 8.6kW and fed via NEMA L21-30P, this unit delivers 12 locking AC outlets — a mix of C13 and C19 couplers — making it compatible with both standard 1U/2U servers and high-draw infrastructure like UPS bypass modules and storage arrays. If you're managing high-density compute rows where unexpected reboots or phantom loads are a problem, the VP7N31A2 gives you the control and visibility to address both remotely.

This is a rackmount PDU from the Vertiv power infrastructure lineup, purpose-built for environments where manual outlet cycling or guesswork troubleshooting isn't an option. The horizontal 0U form factor mounts along the top or bottom of a standard rack without consuming a rack unit — preserving valuable vertical space in dense deployments.

Key Features

• Switched Outlet Control: Each of the 12 outlets can be independently powered on, off, or cycled via the network interface. That means a hung blade or unresponsive NAS can be rebooted from a remote NOC without dispatching a technician — relevant in colocation environments with after-hours SLAs or geographically distributed edge sites.
• Three-Phase 30A Input at 120/208V WYE: The NEMA L21-30P plug feeds a 120/208V WYE circuit at up to 30A, delivering 8.6kW usable capacity. Three-phase distribution balances load across legs, which reduces neutral current and helps you stay within NEC 80% derate limits across the full outlet bank — a practical concern when provisioning dense GPU or storage rows.
• 12 Mixed C13/C19 Outlets: A combination of C13 and C19 receptacles means you can attach both standard IEC C14 server power supplies and the heavier-draw C20 devices (UPS, high-end switches, dense storage) on the same PDU. No adapter cables, no wasted outlets due to form-factor mismatch.
• Current, Voltage, and Power Monitoring: Real-time per-unit monitoring of current (A), voltage (V), and power (W/kWh) feeds directly into your network management infrastructure via SNMP. This isn't just alerting — it's the data you need for capacity planning, PUE calculations, and budget reporting without deploying separate metering hardware.
• SNMP v1/v2c/v3 with Full Protocol Stack: The onboard network interface supports SNMP v1/v2c/v3, HTTPS, SSH, LDAP, RADIUS, TACACS+, Modbus TCP, Syslog, and NTP over both IPv4 and IPv6. SNMP v3 with authentication and encryption is the baseline for any modern data center security policy — this unit meets it without requiring a firmware add-on.
• LCD Display with LED Indicators: The integrated LCD provides at-a-glance current and status readout directly on the unit, eliminating the need to pull up a browser session for basic health checks during physical rack walks. LED indicators provide immediate fault visibility even when the network card is unreachable.
• 3-Meter Cord Length: The 3m (approximately 10-foot) input cord provides enough reach to accommodate top-of-rack or mid-row power panel placements without extension hardware. Horizontal mounting and cord management become substantially cleaner with adequate lead length in deep rack deployments.
• RJ-45 Ethernet + Serial + USB Connectivity: A single RJ-45 Ethernet port handles all IP-based management. The serial port supports out-of-band console access when the network path is down — critical during network outages where the PDU itself may be the cause. The USB port enables local firmware updates or configuration transfer without network dependency.
• Dual-Stack IPv4/IPv6 with DHCP: Native dual-stack support means the VP7N31A2 integrates cleanly into environments already running IPv6 management planes — no NAT workarounds, no legacy-only addressing constraints. DHCP simplifies initial provisioning in large rollouts; static addressing is available for production stability.

Integration & Compatibility

The VP7N31A2 integrates with DCIM platforms and NMS tools that support SNMP v1/v2c/v3 or Modbus TCP — covering the majority of enterprise infrastructure management stacks. LDAP, RADIUS, and TACACS+ support means authentication can be federated through your existing identity provider rather than maintaining local PDU credentials across dozens of units. For environments running Vertiv's own management software, this unit reports natively into that ecosystem. For third-party integration, check your DCIM vendor's PDU compatibility matrix against SNMP MIB support — most major platforms (Nlyte, Sunbird, Device42) support standard PDU MIBs that this unit publishes. The 50/60 Hz input frequency acceptance and 100–120/200–240V nominal range means this unit supports both North American and international rack environments, useful for global data center operators standardizing on a single PDU SKU.

Frequently Asked Questions

Q: What input plug does the VP7N31A2 use, and what circuit do I need at the panel?

A: The VP7N31A2 uses a NEMA L21-30P plug, which requires a 30A three-phase WYE circuit at 120/208V. At the panel, you'll need a dedicated 30A three-phase breaker. The unit accepts 100–120/200–240V nominal input at 50 or 60 Hz.

Q: Can I reboot individual outlets on the VP7N31A2 remotely without affecting other outlets?

A: Yes. The VP7N31A2 is a switched PDU with outlet-level control, meaning each of the 12 outlets can be independently switched on, off, or power-cycled via the network management interface. Cycling one outlet does not affect the others.

Q: What network management protocols does the VP7N31A2 support?

A: The VP7N31A2 supports SNMP v1, v2c, and v3; HTTPS; HTTP; SSH; DHCP; NTP; LDAP; RADIUS; TACACS+; Modbus TCP; Syslog; SMTP; RSTP; and both IPv4 and IPv6. This covers integration with virtually all enterprise NMS and DCIM platforms.

Q: What types of outlets does the VP7N31A2 provide?

A: The unit provides 12 IEC AC outlets — a mix of C13 and C19 couplers — accommodating both standard server power supplies (C14 input) and higher-draw infrastructure devices (C20 input) on the same PDU.

Q: Does the VP7N31A2 monitor power at the outlet level or only at the PDU level?

A: The VP7N31A2 provides current, voltage, and power monitoring. Based on the product classification as an outlet-level monitoring PDU, monitoring is available at the outlet level, which is the key differentiator versus unit-level-only monitored PDUs.

Q: What is the rack mounting format for the VP7N31A2?

A: The VP7N31A2 is a 0U horizontal PDU. It mounts horizontally along the top, bottom, or side of a standard rack without consuming any rack unit (U) space, preserving vertical capacity for servers and other equipment.

Karl Wilson

The VP7N31A2 is the unit I specify when a client needs both switched outlet control and real-time power data on a three-phase 30A feed — not one or the other. The combination of SNMP v3 authentication, LDAP/RADIUS/TACACS+ federation, and per-outlet switching on a 0U horizontal form factor covers the majority of enterprise data center requirements without requiring a separate metering appliance or a local admin account sprawl problem.

Technical Highlights:

• 8.6kW at 30A Three-Phase: On a balanced L21-30P WYE circuit, you're distributing load across three phases, which keeps per-leg current well within NEC 80% derate thresholds even at full utilization. This matters most in high-density compute rows where single-phase PDUs would already be at their limit.
• SNMP v3 + Modbus TCP Dual Reporting: SNMP v3 handles encrypted, authenticated polling for your NMS; Modbus TCP opens a parallel path for DCIM or BAS integration. Having both means you're not locked into a single management platform — useful when a client is mid-transition between DCIM vendors.
• 3m Input Cord: Ten feet of lead gives you real flexibility in top-of-rack or mid-aisle power panel placements. Short-cord PDUs in deep-row deployments are a recurring nuisance; this unit avoids that entirely.

Deployment Considerations:

• The NEMA L21-30P input is non-negotiable — verify your panel has the correct receptacle before the unit ships. Field-fabricated adapters on 30A three-phase circuits are a code and warranty issue.
• The single RJ-45 management port means this unit does not support dual-NIC redundant management paths natively. In environments where PDU management availability is itself a critical uptime requirement, factor in whether your network infrastructure provides the redundancy at the switch layer.

The VP7N31A2 is the right specification for colocation operators and enterprise IT teams deploying high-density three-phase racks where remote outlet cycling, federated authentication, and real-time kWh accountability are operational requirements — not nice-to-haves.