Vertiv Rpdu Monitored Unit Level EC 35A 208V Delta 10.0KW Horizontal (6) Locking - VP4N41A1

Vertiv VP4N41A1 Monitored Unit-Level Horizontal rPDU

Overview

The Vertiv VP4N41A1 is a 0U horizontal, three-phase monitored rack PDU rated at 35A/208V delta and 10.0kW — built for dense data center and equipment room deployments where real-time power visibility at the unit level is a non-negotiable operational requirement. With six locking C19 outlets, a 3-meter input cord, and an onboard LCD display, the VP4N41A1 gives power and facilities engineers the instrumentation they need without adding rack-unit overhead to already-tight enclosures.

This is a rack power distribution unit designed for environments running high-density servers, storage arrays, or network gear on three-phase 208V circuits. If your team manages uptime SLAs, the per-outlet locking mechanism and unit-level current/voltage/power monitoring directly reduce the two most common failure modes: accidental disconnects and undetected overloads.

Key Features

• 35A / 208V Three-Phase Input, 10.0kW Capacity: Sized for high-density rack loads that exceed what single-phase circuits can deliver. At 10kW continuous, this unit handles a fully populated server rack without derating — you're not chasing a headroom cliff at 80% of a lower-rated unit.
• Six Locking C19 Outlets: C19 connectors are the correct choice for server PSUs and network gear rated above 10A. The locking mechanism eliminates accidental cable pull — a meaningful operational benefit in hot-aisle/cold-aisle environments where cable management is tight and access is infrequent.
• Unit-Level Current, Voltage, and Power Monitoring: Real-time measurement of all three parameters at the PDU level lets operators detect load creep, identify overloaded phases, and validate capacity before adding equipment — all without deploying a separate power meter or logging into a DCIM platform.
• Onboard LCD Display: Local readout of current load and voltage without requiring network access. During provisioning or troubleshooting, this saves a remote-console hop — and it means facilities staff can verify status without credentials.
• 0U Horizontal Mounting, 3m Cord: The 0U horizontal form factor mounts to the rack frame or feeds into a cable management channel without consuming a rack unit. The 3-meter cord reaches standard floor PDU strips or overhead busway without extensions on most raised-floor deployments.
• Enterprise Network Protocol Stack: SNMP v1/v2c/v3, SSH, HTTPS, LDAP, RADIUS, TACACS+, Syslog, SMTP, NTP, Modbus TCP, RSTP, plus full IPv4/IPv6 and DHCP support. This isn't a consumer-grade PDU — SNMP v3 with RADIUS and TACACS+ means it slots into existing AAA infrastructure, and Modbus TCP opens integration with BMS and DCIM platforms that don't speak SNMP.
• RJ-45 Ethernet + USB + Serial Ports: The onboard Ethernet port connects to your out-of-band management network. The USB and serial ports support local configuration, firmware updates, or environmental sensor attachment depending on the platform's capabilities — useful when network access isn't available during initial commissioning.
• 200–240V AC Input, 50/60 Hz: Operates on both 50Hz and 60Hz grid frequencies, making this unit viable for international deployments or facilities with mixed utility infrastructure. The 200–240V window covers standard 208V North American three-phase and European 230V single-phase feeds.

Integration & Compatibility

The VP4N41A1's protocol breadth — SNMP v1/v2c/v3, Modbus TCP, HTTP/HTTPS — positions it for integration with leading data center infrastructure management platforms and BMS systems. SNMP v3 traps can feed directly into monitoring stacks like Nagios, Zabbix, SolarWinds, or any DCIM tool with an SNMP receiver. Modbus TCP extends compatibility to building automation controllers that don't support SNMP. LDAP, RADIUS, and TACACS+ authentication support means user access can be centrally managed through existing directory services — no local account sprawl.

If you're planning a monitored Vertiv power distribution deployment across multiple racks, the RSTP support enables loop-free network topologies when daisy-chaining management connections, and IPv6 readiness future-proofs the management plane as networks migrate away from IPv4. For SMTP alerting, the PDU can send threshold-breach notifications directly to operations email or ticketing system webhooks — removing the dependency on a polling-only DCIM setup.

Pair this unit with appropriate PDU mounting hardware and cable management accessories to complete the horizontal installation in open-frame or enclosed racks.

Frequently Asked Questions

Q: What outlet type does the VP4N41A1 use, and why does it matter?

A: The VP4N41A1 uses six C19 locking outlets. C19 is the correct connector for server and network equipment PSUs rated above 10A, and the locking mechanism prevents accidental disconnects — a common cause of unplanned downtime in dense rack environments.

Q: What monitoring parameters does the VP4N41A1 measure?

A: The VP4N41A1 monitors current, voltage, and power at the unit level. This gives operators a real-time view of rack load without a separate power meter, and enables capacity planning before adding new equipment.

Q: Does the VP4N41A1 support SNMP v3?

A: Yes. The VP4N41A1 supports SNMP v1, v2c, and v3, along with SSH, HTTPS, LDAP, RADIUS, TACACS+, Syslog, SMTP, NTP, Modbus TCP, RSTP, IPv4, and IPv6 — a full enterprise management protocol stack.

Q: What is the maximum current and power rating of the VP4N41A1?

A: The VP4N41A1 is rated at 35A maximum current and 10.0kW load capacity on a 208V delta three-phase input. The input voltage range is 200–240V AC at 50 or 60 Hz.

Q: How does the VP4N41A1 mount in a rack?

A: The VP4N41A1 is a 0U horizontal unit, meaning it mounts to the rack frame without consuming any rack units. It ships with a 3-meter input cord, which reaches standard floor PDU strips or overhead busway in most raised-floor data center configurations.

Q: Can the VP4N41A1 integrate with DCIM or BMS platforms?

A: Yes. SNMP v3 is compatible with most DCIM and network monitoring platforms (Nagios, Zabbix, SolarWinds, etc.). Modbus TCP extends integration to building management systems and BAS controllers that don't support SNMP. SMTP alerting enables direct notification to operations teams or ticketing systems on threshold breaches.

Marty Allison

The VP4N41A1 is the unit I reach for when a client needs three-phase power monitoring in a horizontal 0U form factor without giving up rack space. The 35A/208V delta rating at 10.0kW means it's sized for real high-density loads — not the 6–8kW you see on lighter-duty units that run out of headroom when the rack fills up.

Technical Highlights:

• Six Locking C19 Outlets: C19 with locking retention eliminates the accidental-disconnect failure mode that single-phase strips with C13s can't prevent at this current class. You're not buying insurance — you're buying operational reliability for gear running 24/7.
• SNMP v3 + RADIUS/TACACS+ Auth: This is where unit-level monitoring earns its keep. SNMP v3 with AAA integration means current, voltage, and power data streams into your existing monitoring stack without carving out local PDU accounts. That matters at scale — managing 50 PDU passwords is a security problem, not a workflow.
• Modbus TCP Support: Often overlooked. Modbus TCP means this PDU talks directly to BMS and SCADA controllers that run the physical plant — not just the IT layer. For colocation facilities or campus data centers with shared building automation, this is the integration hook that saves a middleware layer.

Deployment Considerations:

• Plan your three-phase circuit carefully: 208V delta at 35A requires a dedicated breaker and matching input connector — confirm your facility's PDU circuit is appropriately protected before ordering. The 3m cord is sufficient for most raised-floor runs, but measure before commissioning in overhead-feed configurations.
• The six C19 outlets are the constraint: high-density deployments mixing C13 (standard server PSU) and C19 loads will need a different outlet configuration. VP4N41A1 is optimized for C19-only high-current equipment — don't expect to adapt it for mixed low-current loads without C19-to-C13 adapters, which add resistance and failure points.

The VP4N41A1 is the correct specification for colocation operators, enterprise data center teams, and edge deployments running high-density compute or storage racks on three-phase 208V infrastructure where unit-level power accountability and DCIM/BMS integration are non-negotiable requirements.