Vertiv Rpdu Switched Outlet Level Monitoring EC 20A 240/415V WYE 11.5KW Horizontal - VP7N21A2

Vertiv VP7N21A2 Switched Outlet-Level Monitoring Horizontal PDU

Overview

The Vertiv VP7N21A2 is a horizontal, three-phase switched PDU designed for high-density data center rack environments where per-outlet power control and granular monitoring are not optional — they are operational requirements. Rated at 20A with a nominal input of 200–240V or 346–415V WYE (11.5 kW), this unit delivers outlet-level switching alongside real-time current, voltage, and power monitoring across 12 receptacles in a compact 0U horizontal form factor. If your team manages mixed C13/C19 loads and needs to remotely cycle individual outlets without touching the rack, the VP7N21A2 is engineered for exactly that.

Key Features

• Outlet-Level Switching (12 Outlets): Each of the 12 outlets — a mix of C13 and C19 couplers — can be individually switched on, off, or power-cycled remotely. This means you can reboot a hung server or network device without dispatching a technician to the data hall, cutting mean time to recovery on hard-locked equipment significantly.
• Three-Phase Input, 200–240V / 346–415V WYE: Dual-range input compatibility at 50/60 Hz means this PDU installs in both North American and international data centers without rewiring or custom ordering. The 20A / 11.5 kW rating handles dense compute rows where single-phase PDUs run out of headroom.
• Per-Outlet Current, Voltage, and Power Monitoring: Real-time monitoring at the outlet level — not just at the inlet — gives your ops team the visibility to catch load imbalances, identify rogue draws, and enforce per-cabinet power budgets before a breaker trips. This is the data that makes capacity planning actionable rather than guesswork.
• LCD Display: The onboard LCD gives local technicians immediate status without requiring a laptop or network access — useful during commissioning, maintenance windows, or network-down troubleshooting scenarios where remote access is unavailable.
• Broad Protocol Support — SNMP v1/v2c/v3, HTTPS, SSH, LDAP, RADIUS, TACACS+, Modbus TCP: Enterprise-grade security and integration coverage. SNMP v3 with authentication and encryption fits into existing NMS frameworks (Nagios, PRTG, SolarWinds). RADIUS and TACACS+ mean access control integrates with your existing AAA infrastructure rather than requiring a separate credential store. Modbus TCP opens integration paths to BMS and DCIM platforms.
• IPv4/IPv6 Dual-Stack with DHCP, NTP, SMTP, Syslog: Full enterprise network stack means this unit fits cleanly into modern dual-stack environments. NTP keeps event timestamps accurate for audit trails. SMTP and Syslog enable alerting and log forwarding to centralized monitoring — no polling required for threshold events.
• 1x RJ-45 Ethernet, 1x Serial, 1x USB: The serial port supports out-of-band management when the network path is unavailable. USB provides a local configuration and firmware update path. The single RJ-45 network port connects to your management VLAN — plan your network segmentation accordingly during rack design.
• 3-Meter Power Cord: The 3m (approximately 9.8 ft) input cord provides enough reach for standard under-floor or overhead busway installations without extension cords, keeping the installation clean and reducing potential failure points.
• Horizontal 0U Mounting: The horizontal form factor mounts in a standard rack without consuming a rack unit, preserving your 1U and 2U slots for revenue-generating equipment. Suitable for 19-inch or equivalent rack enclosures.

Integration and Compatibility

The VP7N21A2 supports SNMP v1/v2c/v3, which is the baseline integration requirement for virtually all enterprise NMS and DCIM platforms. Modbus TCP extends compatibility to building management systems. LDAP, RADIUS, and TACACS+ authentication means user access control can be centrally managed — a requirement in multi-tenant colocation environments and enterprise data centers with strict role-based access policies. The dual-input voltage range (200–240V / 346–415V WYE at 50/60 Hz) makes this unit viable for global deployments where standardizing on a single PDU SKU reduces spare-parts complexity. RSTP (Rapid Spanning Tree Protocol) network support indicates the management network interface participates correctly in managed switch topologies without creating loops.

Frequently Asked Questions

Q: Can individual outlets on the VP7N21A2 be switched independently, or only as a group?

A: Each of the 12 outlets on the VP7N21A2 can be switched independently — on, off, or power-cycled — without affecting other outlets. This is the defining characteristic of outlet-level switched PDUs versus inlet-level switched units.

Q: What input voltage configurations does the VP7N21A2 support?

A: The VP7N21A2 supports 200–240V and 346–415V WYE three-phase input at 50 or 60 Hz, with a maximum current of 20A and an 11.5 kW power rating. This dual-range input covers both North American and international three-phase power infrastructure.

Q: What network management protocols does the VP7N21A2 support?

A: The VP7N21A2 supports SNMP v1/v2c/v3, HTTP, HTTPS, SSH, LDAP, RADIUS, TACACS+, NTP, SMTP, Syslog, Modbus TCP, DHCP, IPv4, IPv6, and RSTP. This covers integration with enterprise NMS, DCIM, BMS, and AAA infrastructure.

Q: What outlet types are included on the VP7N21A2?

A: The VP7N21A2 provides 12 AC outlets combining C13 and C19 coupler types, accommodating both standard server/networking equipment (C13) and higher-draw devices such as PDU-to-PDU connections or high-power servers (C19).

Q: Does the VP7N21A2 have an out-of-band management option?

A: Yes. The VP7N21A2 includes a serial port (1x) for out-of-band management when the primary Ethernet network path is unavailable, plus a USB port for local configuration and firmware updates.

Q: Is the VP7N21A2 a rack-unit (1U/2U) device or a 0U device?

A: The VP7N21A2 is a 0U horizontal PDU, meaning it mounts within the rack without consuming any rack unit slots — typically along the side rail or at the top/bottom of the enclosure depending on rack model.

Jerry Tildsen

When I look at the VP7N21A2, the spec that immediately frames the deployment conversation is the 346–415V WYE input range alongside outlet-level switching on all 12 receptacles. That combination in a single 0U horizontal unit makes this a legitimate candidate for international colocation deployments where three-phase infrastructure is the norm and remote outlet cycling is non-negotiable for ops teams managing equipment across time zones.

Technical Highlights:

• Outlet-Level Switching on All 12 Outlets: Both C13 and C19 ports are individually switchable — you are not limited to a subset of switched outlets as with some mixed-tier PDUs. Full outlet-level granularity across the board means you can enforce per-device power policies and cycle any load remotely.
• SNMP v3 + TACACS+ + RADIUS: This is the enterprise security trifecta for PDU management. SNMP v3 with authentication/encryption feeds your NMS without cleartext exposure; RADIUS and TACACS+ eliminate local credential management entirely, which matters in environments with rotating staff or strict change-control requirements.
• Modbus TCP Support: Most PDUs in this class stop at SNMP and HTTP. Modbus TCP is the bridge to DCIM and BMS platforms that speak industrial protocols — useful if your data center infrastructure management layer is built on a BMS backbone rather than a pure IT NMS stack.

Deployment Considerations:

• The single RJ-45 management port means this unit belongs on a dedicated management VLAN; plan your switch port allocation and VLAN tagging during rack design rather than retrofitting it post-installation. Out-of-band access via the serial port is available but requires a console server in the rack if true OOB management is required without physical presence.
• At 20A / 11.5 kW on a three-phase WYE input, verify your upstream breaker and whip capacity before commissioning — this PDU will draw close to its rated capacity in a dense GPU or high-core-count compute row, and there is no built-in load-shedding or cascade tripping described in the available specs.

The VP7N21A2 is the right call for a high-density three-phase rack in a colocation or enterprise data center where the ops team needs per-outlet remote switching, enterprise AAA integration, and protocol flexibility for DCIM/BMS environments — and where consuming zero rack units for power distribution is a hard constraint.