Server Technology C4W36RA-GPBD2EE1 Switched 3-Phase Rack PDU

The Server Technology C4W36RA-GPBD2EE1 is a vertical 0U switched rack PDU built for 415V three-phase data center feeds, combining 12 C13 outlets and 24 HDOT Cx outlets for 17.3 kW of input power capacity. It's the right fit for high-density racks where mixed cord types (C14 and C20 plugs) need to land on the same strip without hunting for adapters. C4W36RA-GPBD2EE1 (often searched as C4W36RA GPBD2EE1) is part of the Server Technology PDU catalog, and it slots into the broader rack power and infrastructure lineup alongside switches and NVRs that share the same cabinet.

Overview

This PDU is rated for 415 V input at 30 A (24 A continuous), terminating in a 230/400 32A & 240/415V Wye 30A IEC 60309 3P+N+G 6Hr plug — standard fare for enterprise and hyperscale rack rows already wired for 3-phase Wye service. At 70 inches tall, 2.2 inches wide, and 2.5 inches deep, it mounts vertically in the rear channel of a standard rack without eating into usable U-space. Branch circuit protection runs through 2-pole, 20A trip breakers rated at 10 kAIC, so a downstream short trips a breaker instead of taking down the whole PDU.

Key Features

• HDOT Cx Outlets (24x): Cx is a UL-tested hybrid outlet that accepts both C14 and C20 plugs, so you're not stuck reordering the wrong cord type mid-deployment — one outlet style covers both server PSU classes.
• C13 Outlets (12x): Rated up to 12A @208V L-N (15A peak) or 10A @230V L-N, sized for standard server and switch power supplies without derating headaches.
• Per-Inlet Power Sensing (PIPS): Monitors current, voltage, power, apparent power, crest factor, power factor, and energy at the inlet — the data you need for capacity planning before you run out of headroom on a circuit.
• Branch Measurement Accuracy ±1%: Tight enough to trust for billing or chargeback models in colocation environments, not just rough load estimates.
• Input Measurement Accuracy ±0.2% (V/A), ±0.5% (Active Power): Lab-grade metering means your DCIM dashboards reflect real load, not PDU-introduced drift.
• 45-Degree Angled Infeed: Improves cable routing and provides strain relief, and the bend radius is rated for use with 60A cords — less stress on the whip in tight rear-of-rack spaces.
• Multi-Unit Linking & Cascading: Daisy-chain up to 16 PDUs off a single primary unit through one IP address via USB or Ethernet — fewer IPs to manage across a row.
• Hot-Swappable Controller: The controller houses computing, display, and connectivity; swapping it doesn't require de-energizing the PDU, which matters when you can't schedule a maintenance window.
• Dual Gigabit Ethernet (2x 10/100/1000 Mbps): Redundant network paths for management traffic, useful when uptime SLAs don't tolerate a single NIC as a point of failure.
• Environmental Monitoring: Supports up to 12 daisy-chained DX2-series SmartSensors with SNMP alerting and email notification — temperature and humidity visibility at the rack level.
• Waveform Capture: Captures voltage and current waveforms automatically or on demand, which speeds up root-cause work on power quality complaints instead of guessing after the fact.
• Operating Range 32°F to 140°F (0°C to 60°C): Covers standard data center halls as well as warmer edge or telecom closets without additional cooling requirements.

Integration & Compatibility

Management runs over HTTP(S), SSH, Telnet, SNMP, (S)FTP, SMTP, Syslog, LDAP(S), and RS-232 serial, which covers most existing DCIM and network monitoring stacks without a translation layer. The unit includes a sensor port and a dedicated PDU link port (both RJ45) plus 2x USB-A and 1x USB-B for local console access and sensor chaining. Before specifying, confirm your rack switch and cabling plan accounts for the two Ethernet drops this PDU needs for full redundant management — it's a detail that's easy to miss when a PoE and power planning guide isn't part of the pre-install checklist.

What's in the Box

Contact evidence for this SKU does not confirm bundled accessories beyond the PDU unit itself; verify mounting hardware and cord requirements against your specific rack elevation before ordering.

Frequently Asked Questions

Q: What input voltage does the C4W36RA-GPBD2EE1 require?

A: It's rated for 415V three-phase Wye service, terminating in a 230/400 32A & 240/415V Wye 30A IEC 60309 3P+N+G 6Hr plug, with 30A input current (24A rated continuous).

Q: How many outlets does the C4W36RA-GPBD2EE1 have?

A: 36 total — 12 C13 outlets and 24 HDOT Cx outlets that accept both C14 and C20 plugs.

Q: Can the C4W36RA-GPBD2EE1 be daisy-chained with other PDUs?

A: Yes — up to 16 PDUs can be linked and cascaded from a single primary unit through one IP address via USB or Ethernet connection.

Q: What's the branch circuit protection on the C4W36RA-GPBD2EE1?

A: 2-pole, 20A trip breakers rated at 10 kAIC, meeting UL and IEC 62368-1 branch circuit protection requirements.

Q: Does the C4W36RA-GPBD2EE1 support environmental monitoring?

A: Yes — it supports up to 12 daisy-chained DX2-series SmartSensors, each capable of SNMP-based alerts and email notifications.

Q: What's the physical size of the C4W36RA-GPBD2EE1?

A: 70 inches tall by 2.2 inches wide by 2.5 inches deep — a vertical 0U mount for the rear rack channel.

Karl Wilson

The C4W36RA-GPBD2EE1 is a 17.3kW 415V unit, and that voltage detail is the first thing to confirm before you spec it — this isn't a 208V drop-in, it needs a true 3-phase Wye feed rated at 230/400 32A & 240/415V. I've seen this PDU spec'd wrong more than once because someone matched outlet count without checking the infeed plug.

Technical Highlights:

• 36 total outlets (12 C13 + 24 HDOT Cx): The Cx outlets take both C14 and C20 plugs, so mixed server/switch loads share one outlet bank instead of forcing you to segregate cord types across the strip.
• Per-Inlet Power Sensing at ±0.2% voltage/current, ±0.5% active power: That accuracy is tight enough for chargeback billing in colo racks, not just rough monitoring — branch-level accuracy holds at ±1%.
• 2-pole 20A branch breakers at 10 kAIC interrupt rating: Meets UL/IEC 62368-1 branch protection requirements, so a downstream fault trips locally instead of taking the whole 36-outlet strip offline.

Deployment Considerations:

• The 70in x 2.2in x 2.5in vertical form factor is built for 0U rear-channel mounting — confirm your rack's rear channel depth clears 2.5 inches before ordering, especially in narrower colo cabinets.
• Two Ethernet ports (10/100/1000) plus a dedicated PDU link port mean you should plan two network drops per unit if you want redundant management paths, not one.

This is a fit for hyperscale and colocation rows already running 415V 3-phase Wye distribution where rack density is pushing past what a 208V strip can deliver — pair it with the linking/cascading feature to keep a whole row on a single management IP instead of provisioning one per PDU.