Server Technology C2W18TE-YCMF1M9 Switched 0U Rackmount PDU

The Server Technology C2W18TE-YCMF1M9 is a 3-phase switched PDU built for data center racks that need per-outlet control without eating rack unit space. It delivers 10.8kVA of total power capacity across 18 HDOT outlets in a 0U rackmount form factor, drawing 208V 3-phase Wye power through a 30A NEMA L21-30P input. This is a PRO2 Switched Primary unit — part of Server Technology's primary distribution line — designed for engineers who need remote outlet-level switching and configurable alternating phase layout in a single vertical strip.

Overview

At 70 inches tall and just 2.2 inches wide by 2.5 inches deep, the C2W18TE-YCMF1M9 mounts vertically along the rear rail of a server rack and stays out of the way of cable management and airflow. The 0U form factor means it consumes zero rack unit space that would otherwise hold compute or storage gear — a meaningful consideration when every U in a colo cabinet has a cost. With a 10ft cord length, the unit reaches from a typical overhead or underfloor power whip to the PDU's mounting position without requiring an extension.

Key Features

• 18 HDOT Outlets: HDOT (High Density Outlet Technology) connectors pack more outlets into the same vertical space than standard C13/C19 receptacles, letting you power more devices per rack without upgrading to a wider or taller PDU.
• 10.8kVA Total Power Capacity: Enough headroom for a fully populated rack of servers and network gear on a single 3-phase circuit, reducing the number of separate power drops an electrician needs to run to the cabinet.
• 3-Phase 208V Wye Configuration: Wye topology balances load across all three phases automatically as outlets are populated, which keeps phase imbalance from tripping upstream breakers in a mixed-load rack.
• Configurable Alternate Phase Layout: Outlets alternate phase assignment down the length of the strip, so adjacent rack devices draw from different phases — this is what keeps a rack of similarly-loaded 1U servers from overloading a single phase leg.
• 30A NEMA L21-30P Input: A locking twist-lock input connector rated for 30A prevents accidental disconnection in a busy rack aisle — a real risk with straight-blade plugs when someone is routing cables nearby.
• Switched Outlet Control: Per-outlet switching lets you remotely power-cycle a hung server or take a single device offline without touching anything else in the rack — no walking the data center floor for a manual reboot.
• 50/60 Hz Frequency Support: Works on both North American 60Hz and international 50Hz utility power, which matters if this unit is standardized across facilities in different regions.
• 208 VAC Output: Matches the input voltage exactly, so downstream IT equipment rated for 208V three-phase power receives it without a transformer or step-down stage.

Integration & Compatibility

Because output is delivered through HDOT connectors rather than standard IEC receptacles, confirm your server and network gear power cords are HDOT-compatible or that you're sourcing the matching HDOT whips before ordering. The vertical 0U design is intended for standard 42U-48U server racks with sufficient rear rail clearance for a 70-inch strip — measure your cabinet's usable rail height before specifying this unit for a shorter enclosure. For broader planning context on how switched PDUs fit into a rack power budget alongside UPS sizing and circuit design, see the PDU and power planning guide. This PDU pairs naturally with rack-mounted network video recorders and switching infrastructure that needs redundant, remotely switchable power. Server Technology's broader catalog of Server Technology power distribution units includes non-switched and switched/monitored variants if your monitoring requirements differ from this model's switched-only feature set. Browse the full power distribution units category to compare outlet counts, input amperages, and phase configurations against your rack's actual load. If you're also planning structured cabling or PoE runs in the same rack, a PoE switch planning guide can help size the network side of the deployment alongside this power layer. For racks needing overflow capacity, a rack PDU in a compatible outlet count from the same product line keeps spares and cabling standardized.

Frequently Asked Questions

Q: How many outlets does the C2W18TE-YCMF1M9 have?

A: It has 18 HDOT outlets configured with alternating phase assignment across the 3-phase 208V Wye input.

Q: What input connector does the C2W18TE-YCMF1M9 use?

A: A NEMA L21-30P locking twist-lock connector rated for 30A input.

Q: Is the C2W18TE-YCMF1M9 rack-mountable?

A: Yes, it's a 0U rackmount design measuring 70.0 inches tall, 2.2 inches wide, and 2.5 inches deep, intended for vertical mounting along the rear rail.

Q: What is the total power capacity of the C2W18TE-YCMF1M9?

A: 10.8kVA total power capacity at 208V output.

Q: Can outlets on the C2W18TE-YCMF1M9 be switched individually?

A: Yes, this is a switched PDU allowing remote per-outlet power control.

Q: How long is the power cord on the C2W18TE-YCMF1M9?

A: The unit ships with a 10ft cord.

Eden Phillips

The C2W18TE-YCMF1M9 is one of the denser 0U vertical PDUs I spec for colo-style deployments — 18 HDOT outlets on a single 3-phase strip that's only 2.2 inches wide. That width matters more than people think when a rack has two PDUs mounted back-to-back and cable management space is already tight.

Technical Highlights:

• 10.8kVA capacity: at 208V 3-phase, this covers a fully loaded rack of dual-PSU 1U servers without needing a second power drop.
• 30A L21-30P input: the locking twist-lock connector is the right call here — a straight-blade plug on a 30A circuit in a busy aisle is a support ticket waiting to happen.
• Configurable alternate phase outlets: outlets alternate phase down the strip automatically, which does the load-balancing work for you instead of requiring manual phase mapping during install.

Deployment Considerations:

• Confirm your rack's rear rail clearance can accommodate a 70-inch vertical strip before ordering — this is a full-height 0U unit, not a half-rack option.
• HDOT outlets require HDOT-compatible power cords on connected equipment; verify your server and switch power cables before assuming plug-and-play with existing C13/C19 whips.

This is the unit I reach for on a 42U+ colocation cabinet running mixed compute and network gear where remote outlet switching justifies the added cost over a basic non-switched strip — not a fit for a small 12U wall-mount enclosure with only a handful of devices.