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CWG-24VD/Y (C13/C19) Power Monitoring PDU

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208-240V 3 Phase Zero U Power Monitoring PDU with 24 outlets

208-240V 3 Phase Delta/Wye POPS Zero U Power Distribution Unit with 24 mixed-type outlets

Server Technology offers a wide range of CDUs (cabinet power distribution unit). The switched power monitoring PDU combines network configuration and management with power distribution, environmental monitoring, and the ability to provide power monitoring for individual outlets/devices. Power information per outlet includes:

Remotely reboot a single or dual-power server with one command. The power monitoring PDU can also be configured to send SNMP or email-based alerts when power or environmental conditions exceed thresholds, and assign user specific access rights to designated outlets or groups.

Utilizing the grouping feature, power information is available per device (multiple outlets), groups of devices (applications), individual power monitoring PDU, cabinet, rows of cabinets, or the whole data center floor. Combining the switched power monitoring PDU with Server Technology's Sentry Power Manager software tool, you can cluster outlets and gain power usage information across multiple power monitoring PDU's individual IP address.

The switched power monitoring PDU has top entry for network, serial, and environmental connections combined with a bottom power cord entry. Current monitors are easily inverted via the web GUI or serial interface. This provides flexibility when connecting power a monitoring PDU to overhead power or busways.

Ordering Information

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Model Number Input Voltages Amperage Available Input Cord** Outlets Dimensions
208-240V Delta
20A NEMA L15-20P Cordset 10ft (3m) (18) IEC 60320/C13
(6) IEC 60320/C19
6904 x 1.75 x 3.50 in.
(1753 x 44 x 89 mm)
208-240V Delta
30A NEMA L15-30P Cordset 10ft (3m) (18) IEC 60320/C13
(6) IEC 60320/C19
69.0 x 1.75 x 3.50 in.
(1753 x 44 x 89 mm)
208-240V Wye
20A NEMA L21-20P Cordset 10ft (3m) (18) IEC 60320/C13
(6) IEC 60320/C19
69.0 x 1.75 x 3.50 in.
(1753 x 44 x 89 mm)
208-240V Wye
30A NEMA L21-30P Cordset 10ft (3m) Front Entry (18) IEC 60320/C13
(6) IEC 60320/C19
69.0 x 1.75 x 3.50 in.
(1753 x 44 x 89 mm)
208-240V Wye
30A NEMA L21-30P Cordset 10ft (3m) Bottom/Base Cord (18) IEC 60320/C13
(6) IEC 60320/C19
69.0 x 1.75 x 3.50 in.
(1753 x 44 x 89 mm)
* Expansion Power Monitoring PDU
**Click here to view additional information on Power Cords and Cables

Power Cords

Model Number Description
PTCORD-1 IEC 60320/C19 - NEMA L6-20P , 10 ft (3m)
PTCORD-2 IEC 60320/C19 - Schuko 10 ft (3m)
PTCORD-3 IEC 60320/C19 - IEC 60309 (BS4343, CEE17) 16/20A Blue (UK Commando) 10 ft (3m)
PTCORD-4 IEC 60320/C19 - BS1363 13A (UK) 10 ft (3m)
PTCORD-5 IEC 60320/C19 - 5-15P (15A Straight-Blade) 10 ft (3m)
PTCORD-6 IEC 60320/C19 - 5-20P (20A Straight-Blade) 10 ft (3m)
PTCORD-7 IEC 60320/C19 - L5-20P (20A Twist-Lock) 10 ft (3m)


Model Number Description
EMTH-1-1 Optional temperature and humidity probe, 10ft (3m)
EMCU-1-1 Allows up to (2) additional temperature & humidity probes, (1) water sensor, (4) dry contact closures, (1) analog-to-digital contact sensor. Includes (1) temperature/humidity probe with unit.
SPM (Sentry Power Manager) Appliance
  • Monitor and Manage multiple Sentry CDU's
  • Monitor and Manage all alarm conditions
  • Reporting and Trending
  • Group or Cluster outlets for reboot and power information

Power Monitoring PDU Features

Per Outlet Power Monitoring PDU

POPS (Per Outlet Power Sensing)

Monitor Current Load (A), Voltage (V), Power (W), Apparent Power (VA), Crest Factor and Power Factor per outlet at an accuracy of +/- 2%

Easily replace fuses on your power monitoring PDU

Fuse Retractors for Branch Circuit Protection

These tool-less retractors pull out for easy access and replacement of fuses. The Server Technology Sentry CDU Family meets the UL 60950-1 requirement for branch circuit protection.

Power monitoring PDUs have digital true RMS LED displays

Input Current Monitoring

Exclusive Digital True RMS current monitoring is critical to preventing overloads in high-density computing environments. LED digital display on the CDU enclosure reports the aggregate current draw of the branch circuit.

Attach environmental sensors to your power monitoring PDU

Temperature and Humidity

The switched power monitoring PDU supports two external 10ft (3m) probes. Each of these probes measures both Temperature and humidity. Receive SNMP-based alerts or email notifications from your power monitoring PDU when conditions exceed defined thresholds.


Zero U PDU

The power monitoring PDU has a vertical enclosure that occupies Zero Vertical U of rack space in the equipment cabinet. They mount on the back rails or in the cavity space of the cabinet.


Add a redundant PDU

Connect an Expansion Cabinet power distribution unit to any POPS power monitoring PDU to control two power input circuits and manage outlets (individual or groups) under 1 IP address.


Network Access and Per Outlet Control

Individual or group outlet network access power control to cycle power and reboot any selected servers or other network devices. Use TCP/IP (HTTP, HTTPS, SSH, Telnet, SNMP) or RS-232 to communicate with each power monitoring PDU and rectify locked-up network devices. Reduce Mean Time to Repair (MTTR) a failing server by controlling individual power outlet receptacles to reboot any selected server or other device.

The POPS power monitoring PDU can also be controlled on a per outlet basis. Assign outlets to a group for control of dual-power supply servers and other gear with a single command. Create an unlimited number of groups with any combination of outlets associated to each group.


SNMP Management & Event Notification

The POPS power monitoring PDU supports SNMP. This allows network management systems to use SNMP requests to retrieve information and control power for the individual outlets. The power monitoring PDU includes SNMP v1 agent supporting standard MIB I and MIB II objects. A private enterprise MIB extension is also supported to provide network access power control. SNMP traps can be generated for various events.


Secure Access - SSH or SSL Protection

SSH is a Unix-based command interface and protocol for securely getting access to a network access device. The power monitoring PDU support SSHv2. SSL is a commonly-used protocol for managing the security of a message transmission on the internet. The power monitoring PDU supports SSLv3/TLSv1.



The power monitoring PDU supports Lightweight Directory Access Protocol (LDAP) Version 3 including LDAPS (LDAP over TSL/SSL). This support enables authentication with LDAP servers. Administrators can pre-define and configure a set of necessary LDAP groups, and access rights for each group.


RS-232 Control

Serial control via any device with a bi-directional serial port, including a PC, laptop, KVM switch, console port access switch, or terminal server.

Additional Specifications

Agency Approvals

Communications and Security

Branch Circuit Protection

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