IBM 0U Basic Power Distribution Units

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Abstract

The IBM zero-U (0U) Power Distribution Units (PDUs) are the ideal solutions when you need flexible, reliable, easy-to-deploy power distribution with branch circuit protection to minimize downtime. These rack-dense units distribute power to up to 24 outlets. The 0U Power Distribution Units are designed to be installed vertically in the rear channel of an IBM 42U rack, thereby not consuming any horizontal rack space that should be reserved for IT equipment (hence the term 0U).

Changes in the July 29 update:
* Corrected the plug images for 46M4131 and 46M4122
* Added feature codes

Contents


The IBM® zero-U (0U) Power Distribution Units (PDUs) are the ideal solutions when you need flexible, reliable, easy-to-deploy power distribution with branch circuit protection to minimize downtime. These rack-dense units distribute power to up to 24 outlets. The 0U Power Distribution Units are designed to be installed vertically in the rear channel of an IBM 42U rack, thereby not consuming any horizontal rack space that should be reserved for IT equipment (hence the term 0U).

Figure 1 shows the IBM 0U 12 C19/12 C13 50A 3 Phase PDU installed in an IBM 42U rack. To the right is the IBM 0U 24 C13 30A PDU.


Figure 1. Two of the available IBM 0U Basic Power Distribution Units


Did You Know?

With ever growing power densities in today’s rack environments, it is all too easy to add load in the wrong place and trigger an overload event. The IBM 0U PDU offerings can minimize this impact, providing the ability to quickly recover with resettable circuit breakers for each designated bank of receptacles, referred to as load groups.


Introduction to PDUs

A power distribution unit (PDU) is a highly reliable, multiple outlet power strip, designed to consolidate line cords within the rack and distribute conditioned power from an uninterruptible power supply (UPS) or utility power to servers and other IT equipment. The PDU efficiently distributes power within the rack and provides fault-tolerant power redundancy for high availability requirements.

There are three types of PDUs available from IBM: basic, monitored, and switched and monitors. The PDUs covered in this document are of the basic type.
  • Basic: The simplest and most cost-effective power distribution. Available with various outlet configurations and line cord options to support differing systems and load requirements. The PDUs covered in this document are of this type.
  • Monitored (also known as PDU+): Provides the same benefits as a Basic PDU, but adds additional advanced PDU power monitoring down to the load group. This enables businesses to have a cross-platform rack level power and thermal view for trending analysis to improve power management.
  • Switched and monitored: These are advanced power management solutions, providing power monitoring at the outlet level, with increased accuracy at low amperages, for more precise views of power consumption down to the individual server level instead of at the consolidated load group. These PDUs also offer individual outlet switching (on/off), which allows for remote power sequencing and helps prevent unintended PDU overloading. Management can be performed by tools such as IBM Systems Director Active Energy Manager™.


Part number information

Table 1 lists the available 0U Basic PDUs.

Table 1. Ordering part numbers and feature codes
Part numberFeature codeDescription
46M41285924IBM 0U 24 C13 30A PDU
46M41315925IBM 0U 24 C13 32A PDU
46M41225922IBM 0U 24 C13 16A 3 Phase PDU
46M41255923IBM 0U 24 C13 30A 3 Phase PDU
46M41405926IBM 0U 12 C19/12 C13 50A 3 Phase PDU
46M41435927IBM 0U 12 C19/12 C13 32A 3 Phase PDU

The part numbers for the IBM 0U Basic Power Distribution Units are included with the following items:
  • One power distribution unit
  • Mounting brackets for the following racks:
    • Two brackets for an IBM S2 42U Standard Rack cabinet (Types 9307, 9956)
    • Two brackets for an IBM Enterprise Rack cabinet (Types 1410, 9308)
  • Miscellaneous hardware kit (for attaching the mounting brackets to the PDU and installing the PDU in a rack cabinet)


Features

IBM 0U Basic PDUs have the following common features:
  • 0U rack-dense design with input cable connection, primary outlets, and breakers on one face to improve usability and cable management
  • Hardware included to mount in side pocket of rack
  • Easily accessible individual breakers per receptacle for high availability environments
  • Electronic over-current protection
  • High capacity up to 22 kW
  • Resettable UL489 rated circuit breakers

The use of PDUs simplifies cable management and increases accessibility. In addition, the button-mount design of these 0U Basic PDUs helps simplify deployment by providing tool-less rear mounting in IBM 9360, 9361, and 9362 model rack cabinets, thereby reducing installation time.

Table 2 compares the power specifications of the IBM 0U Basic PDUs.

Table 2. Specifications
Feature
IBM 0U 24 C13 30A PDUIBM 0U 24 C13 32A PDUIBM 0U 24 C13 16A 3-phase PDUIBM 0U 24 C13 30A 3-phase PDUIBM 0U 12 C19/12 C13 50A 3-phase PDUIBM 0U 12 C19/12 C13 32A 3-phase PDU
Part number46M412846M413146M412246M412546M414046M4143
Feature code592459255922592359265927
Input power
Number of phases
Single phase input
Three phase input (wye)
Line cord
Permanently attached line cord, 3 m length (9-ft, 10-in)
Line cord connectorNEMA L6-30PIEC-309 P+N+GndIEC-309 P+N+GndNEMA L21-30PCS8365L 3P+GndIEC-309 3P+N+Gnd
Plug design
Input voltage200-208V220-240V220-240V / 380-415V200-208V200-208V220-240V / 380-415V
Input current rating30A (24A in the USA)32A16A30A (24A in the USA)50A (40A in the USA)32A
Maximum power rating6240 VA7680 VA4320 VA18720 VA31200 VA22920 VA
Output power
Number of C13 outlets242424241212
Number of C19 outlets00001212
Output voltage rating200-208V220-240V220-240V200-208V200-208V220-240V
Output current rating
Each outlet: 10 amps (VDE) / 15 amps (UL/CSA)
Each C13 outlet: 10 amps (VDE) / 15 amps (UL/CSA)
Each C19 outlet: 16 amps (VDE) / 20 amps (UL/CSA)
Number of phases
Single phase output
Circuit breakers
Three double-pole branch rated circuit breakers rated at 20A
Six double-pole branch rated circuit breakers rated at 20A
Number of load groups333333
Mechanical and environment
Physical dimensions DxWxH
3.35 x 1.75 x 35.4 in / 85 x 44 x 900 mm
3.35 x 1.75 x 47.2 in / 85 x 44 x 1200 mm
Weight3.8 kg / 8.4 lb4.5 kg / 9.9 lb3.8 kg / 8.4 lb3.7 kg / 8.2 lb7.7 kg / 17 lb5.9 kg / 13 lb
Operating temperature
10°C to 55°C (50°F to 122°F)
Operating humidity
5% - 90% (noncondensing)


Connectors

The IBM 0U Basic PDUs with only C13 connectors have the components and controls shown in Figure 2.


Figure 2. IBM 0U Basic PDUs with C13 connectors

The IBM 0U Basic PDUs with C13 and C19 connectors have the components and controls shown in Figure 3.


Figure 3. IBM 0U Basic PDUs with C13 and C19 connectors

A close-up of the circuit breakers of the two types of PDUs is shown in Figure 4.


Figure 4. Circuit breakers of the 24 C13 PDU and 12 C19 / 12 C13 PDU

As Figure 4 shows, the PDUs with C13 connectors have three double-pole branch-rated circuit breakers, each rated at 20A. Each circuit breaker is a load group and is associated with eight C13 outlets. The PDUs with C13 and C19 connectors have six double-pole branch-rated circuit breakers each rated at 20A. Each pair of circuit breakers is a load group and is associated with eight C13 outlets.


Warranty

The IBM 0U Basic PDUs are offered with a three-year limited warranty.


Supported rack cabinets

The IBM 0U Basic PDUs can be installed in the following IBM racks:
  • IBM S2 42U Standard Rack cabinet (Types 9307, 9956)
  • IBM Enterprise Rack cabinet (Types 1410, 9308)
  • IBM 42U 1200mm Deep Dynamic Rack (Type 9360)
  • IBM 42U 1200mm Deep Static Rack (Type 9361)
  • IBM 47U 1200mm Deep Static Rack (Type 9362)

Note: When the 0U PDUs are installed in 1000mm racks such as the IBM S2 42U Standard Rack cabinet, cable management arms (CMAs) cannot be used in the mounted servers.

The PDUs are installed vertically in side pockets of the rack. The Deep Dynamic and Deep Static racks support the button-mount design of the PDU and do not require additional hardware. Installation is shown in Figure 5. For the IBM S2 42U Standard Rack and Enterprise Rack, the PDU part numbers include the necessary mounting hardware.


Figure 5. Installing the IBM 0U Basic PDU in a Deep Dynamic or Deep Static rack


Related resources

For more information, see the following resources:

Special Notices

This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. IBM assumes no responsibility for its accuracy or completeness. The use of this information or the implementation of any of these techniques is a client responsibility and depends upon the client's ability to evaluate and integrate them into the client's operational environment. publib-b.boulder.ibm.com

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Publish Date
09 September 2011

Last Update
29 July 2014


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TIPS0797