Server Technology C4W36RA-EPBE2FE2 7.3kW Switched Rack PDU

Overview

The C4W36RA-EPBE2FE2 is a PRO4X-series switched rack PDU built for 230V/32A single-phase data center and colocation environments where per-outlet control and granular power visibility matter. Rated for 7.3kW input capacity off a 230V/32A IEC 2P+PE 6Hr inlet, it's a fit for high-density cabinets running mixed server and network gear that need remote outlet switching without a truck roll to the rack. The C4W36RA-EPBE2FE2 (often searched as C4W36RA EPBE2FE2) mixes HDOT Cx and C13 outlets on a single 70-inch vertical strip, giving you flexibility to plug both C14 and C20 corded equipment into the same rail.

Key Features

• HDOT Cx Outlets: Cx is a UL-tested hybrid outlet that accepts both C14 and C20 plugs, so you're not stuck reordering PDUs when a server refresh swaps power cord types mid-rack.
• Per-Inlet Power Sensing (PIPS): Monitors current (A), voltage (V), watts, apparent power (VA), crest factor, power factor, and energy at the inlet — the data you need to right-size circuits and catch overload risk before a breaker trips.
• Branch Circuit Protection: UL489 2-pole breakers rated 20A trip with a 10kAIC interrupt rating, meeting UL and IEC 62368-1 branch protection requirements — this is what isolates a fault to one branch instead of dropping the whole PDU.
• 45-Degree Angled Infeed: Improves cable accessibility and provides infeed strain relief, with a bend radius rated for 60A cords — a real consideration in tight cabinet cable channels where a straight infeed forces a hard bend.
• Multi-Unit Linking & Cascading: Daisy-chain up to 16 PDUs from a primary unit over a single USB or Ethernet connection and one IP address, cutting the number of network drops and IP addresses you have to provision per row.
• Network Monitoring: Reaches the PDU over HTTP(S), SSH, Telnet, SNMP, (S)FTP, SMTP, Syslog, LDAP(S), and RS-232 serial — enough protocol coverage to fit into most existing DCIM and monitoring stacks without a translation layer.
• Hot-Swappable Controller: The controller houses compute, display, and connectivity and can be replaced without powering down connected load — meaningful when the PDU itself is on the critical path and downtime isn't an option.
• Power Quality Measurements: Tracks harmonics, voltage dips and swells, and crest factor at the outlet or load level, useful for diagnosing upstream power quality issues before they take out sensitive equipment.
• Waveform Capture: Captures voltage and current waveforms automatically or on demand — a diagnostic aid when troubleshooting an intermittent power event after the fact.
• RGB LED Outlet Indicators: Each outlet LED shows on/off state, threshold status, and measurement irregularities at a glance, speeding up rack audits without pulling up the web UI.
• Environmental Monitoring: Supports up to 12 daisy-chained DX2-series SmartSensors with SNMP alerts and email notifications, extending monitoring to rack temperature and humidity alongside power.
• Measurement Accuracy: ±0.2% on input/output current and voltage, ±0.5% on power readings — accurate enough to trust the PDU's own billing and capacity-planning data instead of cross-checking with external meters.

Integration & Compatibility

Gigabit Ethernet (10/100/1000 Mbps) handles the primary management connection, and a 5V/500mA USB port supports local accessories and the linking/cascading feature. Operating range is rated 0°C to 60°C at 5%-90% RH, with storage down to -40°C, which covers most conditioned data center floors as well as less-controlled edge and telecom closets. Physical footprint is a 70.0in x 2.2in x 2.5in vertical rail, sized for 0U mounting in the rear or side channel of a standard rack — check cabinet depth and rail clearance against these dimensions before ordering, since this is a full-height zero-U unit, not a horizontal 1U/2U PDU. For broader context on sizing a PDU against your rack's power budget, see this PDU and power distribution planning guide. Pair it with rack-mount NVRs or switching gear drawing from the same 32A branch, and browse the full Server Technology PDU catalog for higher- or lower-capacity variants, or the broader power distribution units category for horizontal and basic (non-switched) options. If you're standardizing rack infrastructure, a rack mounting accessories line rounds out cable management for a 70-inch vertical PDU run.

Frequently Asked Questions

Q: What's the input capacity of the C4W36RA-EPBE2FE2?

A: It accepts 230V at 32A through an IEC 2P+PE 6Hr plug, for a total input power capacity of 7.3kW.

Q: What outlet types does the C4W36RA-EPBE2FE2 provide?

A: It combines HDOT Cx outlets (rated 16A @230V L-N, accepting both C14 and C20 plugs) with standard C13 outlets (rated 10A @230V L-N).

Q: Can I link multiple C4W36RA-EPBE2FE2 units together?

A: Yes. Up to 16 PDUs can be daisy-chained from a primary unit over a single USB or Ethernet connection, managed through one IP address.

Q: What network protocols does this PDU support for remote monitoring?

A: HTTP(S), SSH, Telnet, SNMP, (S)FTP, SMTP, Syslog, LDAP(S), and RS-232 serial are all supported.

Q: What's the operating temperature range?

A: 0°C to 60°C with 5% to 90% RH humidity during operation; storage range extends to -40°C to 85°C.

Q: Is the controller field-replaceable?

A: Yes, the controller is hot-swappable and can be replaced without powering down connected load.

Ted Perry

The spec that stands out on the C4W36RA-EPBE2FE2 is the 10kAIC interrupt rating on its UL489 branch breakers — that's meaningful fault-current headroom for a 32A branch circuit PDU, and it tells me this unit is built to isolate a downstream short without cascading the failure upstream.

Technical Highlights:

• 7.3kW @ 230V/32A input: Sized for a genuinely dense cabinet — mixed server, storage, and network load — without derating headroom, assuming you've confirmed the upstream circuit is actually provisioned for 32A continuous.
• Per-Inlet Power Sensing (PIPS): Reports current, voltage, watts, VA, crest factor, power factor, and energy at ±0.2% (current/voltage) and ±0.5% (power) accuracy — tight enough that I'd trust this data for chargeback billing, not just rough capacity planning.
• 16-unit cascading over one IP: Cuts your management VLAN footprint significantly in a multi-rack row — instead of 16 IPs and 16 SNMP polling targets, you're managing one.

Deployment Considerations:

• This is a 70-inch, 0U vertical PDU — measure your cabinet's rear channel clearance before ordering; it won't fit a shallow-depth enclosure designed for horizontal PDUs.
• The HDOT Cx outlets solve the C14/C20 mismatch problem, but confirm your existing power cords match — a straight C13 cord plugs into Cx fine, a C19 cord won't seat in the C13-only positions.

This is the right call for a colocation or enterprise data center row standardizing on remote-switched, metered power with SNMP/DCIM integration — not for a single-server closet where a basic PDU covers the need at lower cost.