• In Stock
  • New
Brands
Show More
Type
Show More
All Top Brands
Availability
Condition
Useful Links
    Customer Ratings
    Sort By:
    View:
    Tripp Lite Basic PDU, 15A, 13 Outlets (5-15R), 120 V, 5-15P Input, 15 ft. Cord, 1U Rack-Mount Power (PDU1215)
    Quick View
    Tripp Lite Basic PDU, 15A, 13 Outlets (5-15R), 120 V, 5-15P Input, 15 ft. Cord, 1U Rack-Mount Power (PDU1215)
    • Style: Rackmount
    • Front Panel LEDs: 1U
    • Certifications: Tested to UL60950-1 (USA), CSA-C22.2 (Canada)
    • Input Voltage: 120V
    • Model #: PDU1215
    Tripp Lite Basic PDU, 16A, 14 Outlets (12-C13 & 2-C19), 100 - 240 V, C20, C14 / L6-20P / L5-20P / 5-20P / 5-15P, 1U Rack-Mount Power (PDUNV)
    Quick View
    Tripp Lite Basic PDU, 16A, 14 Outlets (12-C13 & 2-C19), 100 - 240 V, C20, C14 / L6-20P / L5-20P / 5-20P / 5-15P, 1U Rack-Mount Power (PDUNV)
    • Certifications: Tested to UL60950-1 (USA), CSA (Canada), CE (EU)
    • Input Voltage: 100; 120; 127; 200; 208; 220; 230; 240 V
    • Input Connector(s): NEMA 5-15P; NEMA 5-20P; NEMA L5-20P; NEMA L6-20P; IEC-320 C14; IEC-320 C20
    • Output Frequency: 50/60Hz
    • Model #: PDUNV
    Tripp Lite Metered PDU, 3.2-3.8kW Single-Phase 200-240V (8 C13 & 2 C19), C20 / L6-20P Adapter, 12ft Cord, 1U Rack-Mount, TAA (PDUMH20HV)
    Quick View
    Tripp Lite Metered PDU, 3.2-3.8kW Single-Phase 200-240V (8 C13 & 2 C19), C20 / L6-20P Adapter, 12ft Cord, 1U Rack-Mount, TAA (PDUMH20HV)
    • Style: Horizontal
    • Front Panel LEDs: Digital display reports total PDU output current in amps
    • Certifications: Tested to UL 60950-1 (USA, Canada), Class A (Emissions), NOM (Mexico), CE (IEC 60950), RoHS compliant, TAA compliant
    • ROHS: Yes
    • Model #: PDUMH20HV
    Tripp Lite Metered PDU, 15A, 13 Outlets (5-15R), 120 V, 5-15P, 100-127 V Input, 15 ft. Cord, 1U Rack-Mount Power (PDUMH15)
    Quick View
    Tripp Lite Metered PDU, 15A, 13 Outlets (5-15R), 120 V, 5-15P, 100-127 V Input, 15 ft. Cord, 1U Rack-Mount Power (PDUMH15)
    • Style: Horizontal rackmount
    • Front Panel LEDs: Digital LED current monitor display
    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada), RoHS Compliant
    • ROHS: Yes
    • Model #: PDUMH15
    CyberPower CPS1215RMS 15' 12 Outlets 1800 Joules Rackbar Surge Strip
    Quick View
    CyberPower CPS1215RMS 15' 12 Outlets 1800 Joules Rackbar Surge Strip
    • Outlets Type: NEMA 5-15R
    • Input Voltage: 120V
    • EMI/RFI Noise Filter: 150KHz to 150MHz
    • Clamping Voltage: 330 Volts
    • Model #: CPS1215RMS
    Tripp Lite Metered PDU, 20A, 28 Outlets (5-15/20R), 120 V, L5-20P/5-20P Adapter, 15 ft. Cord, 0U Vertical Rack-Mount Power (PDUMV20)
    Quick View
    Tripp Lite Metered PDU, 20A, 28 Outlets (5-15/20R), 120 V, L5-20P/5-20P Adapter, 15 ft. Cord, 0U Vertical Rack-Mount Power (PDUMV20)
    • Style: Vertical
    • Input Voltage: 120V
    • Output Frequency: 50/60Hz
    • Output Watts (VA): 2400 Watts
    • Model #: PDUMV20
    APC Rack Mount PDU, Basic 100V-120V/15A, (10) Outlets, 1U Horizontal Rackmount (AP9562)
    Quick View
    APC Rack Mount PDU, Basic 100V-120V/15A, (10) Outlets, 1U Horizontal Rackmount (AP9562)
    • Front Panel LEDs: 1U
    • Certifications: cUL Recognized,CSA,GOST,METI Denan,UL 1363,UL Recognized
    • Input Voltage: 100V,120V
    • Input Frequency: 50/60 Hz
    • Model #: AP9562
    APC Rack Mount PDU, Metered 208V/60A Three-Phase PDU, (18) Outlets, 0U Vertical Rackmount (AP8866)
    Quick View
    APC Rack Mount PDU, Metered 208V/60A Three-Phase PDU, (18) Outlets, 0U Vertical Rackmount (AP8866)
    • Brand: APC
    • Type: Metered
    • Rack Size: 0U
    • Style: Vertical
    • Model #: AP8866
    •  
    • ₩6,106,618 
    • ₩178,411 Shipping
    APC Rack Mount PDU, Basic 100V-120V/20A, (14) Outlets, 0U Vertical Rackmount (AP9551)
    Quick View
    APC Rack Mount PDU, Basic 100V-120V/20A, (14) Outlets, 0U Vertical Rackmount (AP9551)
    • Certifications: cUL Recognized, CSA, UL 1363, UL Recognized
    • Input Voltage: 100V, 120V
    • Input Frequency: 50/60 Hz
    • Regulatory Derated Input Current: 16A
    • Model #: AP9551
    Tripp Lite Metered PDU, 1.92kW Single-Phase 120V (12 5-15/20R), L5-20P / 5-20P, 110 - 127V Input, 15 ft. Cord, 1U Rack-Mount (PDUMH20)
    Quick View
    Tripp Lite Metered PDU, 1.92kW Single-Phase 120V (12 5-15/20R), L5-20P / 5-20P, 110 - 127V Input, 15 ft. Cord, 1U Rack-Mount (PDUMH20)
    • Style: Rackmount, Vertical Rackmount, Wallmount / Under-Counter
    • Front Panel LEDs: 1U
    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada), RoHS Compliant
    • Input Voltage: 100; 120; 127
    • Model #: PDUMH20
    Tripp Lite Metered PDU, 30A, 12 Outlets (5-15/20R), 120 V, L5-30P, 15 ft. Cord, 1U Rack-Mount Power (PDUMH30)
    Quick View
    Tripp Lite Metered PDU, 30A, 12 Outlets (5-15/20R), 120 V, L5-30P, 15 ft. Cord, 1U Rack-Mount Power (PDUMH30)
    • Style: Rackmount
    • Front Panel LEDs: Two digit current meter reports PDU input current in amps
    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada), RoHS Compliant
    • Input Voltage: 100 V / 120 V / 127 V
    • Model #: PDUMH30
    Tripp Lite Metered PDU, 30A, 30 Outlets (6-C19 & 24-C13), 208 / 240 V, L6-30P, 10 ft. Cord, 0U Vertical Rack-Mount Power (PDUMV30HV)
    Quick View
    Tripp Lite Metered PDU, 30A, 30 Outlets (6-C19 & 24-C13), 208 / 240 V, L6-30P, 10 ft. Cord, 0U Vertical Rack-Mount Power (PDUMV30HV)
    • Style: Vertical
    • Certifications: Tested to UL60950-1 (USA, Canada), NOM (Mexico)
    • Input Voltage: 208 / 240 V
    • Input Connector(s): NEMA L6-30P
    • Model #: PDUMV30HV
    APC Rack Mount PDU, Basic 100V-120V/30A, (10) Outlets, 1U Horizontal Rackmount (AP9560)
    Quick View
    APC Rack Mount PDU, Basic 100V-120V/30A, (10) Outlets, 1U Horizontal Rackmount (AP9560)
    • Certifications: cUL Listed,CSA,UL 60950,UL Listed
    • Input Voltage: 100V,120V
    • Input Frequency: 50/60 Hz
    • Regulatory Derated Input Current: 24A
    • Model #: AP9560
    APC AP7921B Switched 1U 208V, 230V 20A 8.2 ft Power Distribution Units
    Quick View
    APC AP7921B Switched 1U 208V, 230V 20A 8.2 ft Power Distribution Units
    • Certifications: cUL Listed, CE, CSA, EN 55022 Class A, EN 55024, EN 61000-3-2, EN 61000-3-3, GOST, IRAM, MIC, UL 60950, UL Listed, VDE, VCCI
    • ROHS: Yes
    • Input Voltage: 200V, 208V, 230V
    • Input Frequency: 50/60 Hz
    • Model #: AP7921B
    CyberPower CPS1215RM Single Phase 100 - 120 VAC 15A Basic PDU - 10 Outlets, 15 ft, NEMA 5-15P, Horizontal, 1U
    Quick View
    CyberPower CPS1215RM Single Phase 100 - 120 VAC 15A Basic PDU - 10 Outlets, 15 ft, NEMA 5-15P, Horizontal, 1U
    • Style: Rackmount
    • Front Panel LEDs: 1U
    • Certifications: UL Recognized
    • ROHS: Yes
    • Model #: CPS1215RM
    APC Rack Mount PDU, Metered 208V/30A Three-Phase PDU, (44) Outlets, 0U Vertical Rackmount (AP8865)
    Quick View
    APC Rack Mount PDU, Metered 208V/30A Three-Phase PDU, (44) Outlets, 0U Vertical Rackmount (AP8865)
    • Certifications: CSA C22.2 No. 60950,UL 60950-1
    • ROHS: Yes
    • Input Voltage: 208V 3PH
    • Input Frequency: 50/60 Hz
    • Model #: AP8865
    Minuteman RPM1581HVN 8-Outlets PDU - NEMA 5-15P - 8 x NEMA 5-15/20R - 120 V AC - 1U - Horizontal/Vertical - Rack-mountable
    Quick View
    Minuteman RPM1581HVN 8-Outlets PDU - NEMA 5-15P - 8 x NEMA 5-15/20R - 120 V AC - 1U - Horizontal/Vertical - Rack-mountable
    • Brand: MINUTEMAN
    • Type: Power Distribution Units
    • Style: Horizontal Installation, 0U Vertical Installation
    • Certifications: 62368-1 Certification
    • Model #: RPM1581HVN
    •  
    • ₩708,294 
    • ₩82,285 Shipping
    Tripp Lite Basic PDU, 20A, 13 Outlets (5-15/20R), 120 V, 5-20P Input, 15 ft. Cord, 1U Rack-Mount Power (PDU1220)
    Quick View
    Tripp Lite Basic PDU, 20A, 13 Outlets (5-15/20R), 120 V, 5-20P Input, 15 ft. Cord, 1U Rack-Mount Power (PDU1220)
    • Certifications: Tested to UL60950-1 (USA), CSA-C22.2 (Canada)
    • Input Voltage: 100; 120; 127 V
    • Input Connector(s): NEMA 5-20P
    • Output Frequency: 50/60Hz
    • Model #: PDU1220
    APC Rack Mount PDU, Basic 100V-120V/15A, (14) Outlets, 0U Vertical Rackmount (AP9567)
    Quick View
    APC Rack Mount PDU, Basic 100V-120V/15A, (14) Outlets, 0U Vertical Rackmount (AP9567)
    • Certifications: cUL Recognized,CSA,METI Denan,UL 1363,UL Recognized
    • Input Voltage: 100V,120V
    • Input Frequency: 50/60 Hz
    • Regulatory Derated Input Current: 12A
    • Model #: AP9567
    APC Rack Mount PDU, Metered 100V-120V/15A, (10) Outlets, 0U Vertical Rackmount (AP8831)
    Quick View
    APC Rack Mount PDU, Metered 100V-120V/15A, (10) Outlets, 0U Vertical Rackmount (AP8831)
    • Front Panel LEDs: 0U
    • Input Voltage: 120V AC
    • Features: Power Rating: 1.44 kVA Form Factor: Horizontal Rackmount Toolless-mount Vertical Rackmount Product Type: PDU Color: Black Power Rating: 1.44 kVA Form Factor: Horizontal Rackmount Toolless-mount Vertical Rackmount Input Receptacles: NEMA 5-15P Product Name: Metered Rack PDU Output Receptacles: 10 x NEMA 5-15R Package Contents: Metered Rack PDU Installation Guide Rack Mounting Brackets Safety Guide Serial Configuration Cable
    • Weight: 8.98 lbs.
    • Model #: AP8831
    •  
    • ₩1,442,819 
    • ₩98,867 Shipping
    CyberPower PDU41001 Single Phase 100 - 120 VAC 15A Switched PDU - 8 Outlets, 12 ft, NEMA 5-15P, Horizontal, 1U, SNMP, LCD
    Quick View
    CyberPower PDU41001 Single Phase 100 - 120 VAC 15A Switched PDU - 8 Outlets, 12 ft, NEMA 5-15P, Horizontal, 1U, SNMP, LCD
    • Brand: CyberPower
    • Series: Switched PDU Series
    • Part Number: PDU41001
    • Type: Switched
    • Model #: PDU41001
    CyberPower CPS1220RMS 15' 12 Outlets 1800 joule Surge Protector
    Quick View
    CyberPower CPS1220RMS 15' 12 Outlets 1800 joule Surge Protector
    • Series: Rackbar
    • Outlets Type: NEMA 5-20R
    • Input Voltage: 120V
    • Input Connections: NEMA 5-20P
    • Model #: CPS1220RMS
    APC Rack Mount PDU, Basic 100V-120V/20A, (10) Outlets, 1U Horizontal Rackmount (AP9563)
    Quick View
    APC Rack Mount PDU, Basic 100V-120V/20A, (10) Outlets, 1U Horizontal Rackmount (AP9563)
    • Style: Horizontal
    • Front Panel LEDs: 1U
    • Certifications: cUL Recognized,CSA,UL 1363,UL Recognized
    • Input Voltage: 100V, 120V
    • Model #: AP9563
    Tripp Lite PDU1230 Basic PDU, 30A, 20 Outlets (16 x C13 & 4 x C19), 200 / 208 / 240V, L6-30P Input, 15 Feet Cord, 1U Rack-Mount
    Quick View
    Tripp Lite PDU1230 Basic PDU, 30A, 20 Outlets (16 x C13 & 4 x C19), 200 / 208 / 240V, L6-30P Input, 15 Feet Cord, 1U Rack-Mount
    • Style: Rackmount
    • Certifications: Tested to UL60950-1 (USA), CSA-C22.2 (Canada)
    • ROHS: Yes
    • Input Voltage: 200; 208; 240V
    • Model #: PDU1230
    Tripp Lite Basic PDU, 30A, 24 Outlets (5-15R), 120 V, L5-30P Input, 15 ft. Cord, 1U Rack-Mount Power (PDU2430)
    Quick View
    Tripp Lite Basic PDU, 30A, 24 Outlets (5-15R), 120 V, L5-30P Input, 15 ft. Cord, 1U Rack-Mount Power (PDU2430)
    • Style: Rackmount
    • Front Panel LEDs: 1U
    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada)
    • Input Voltage: 120V
    • Model #: PDU2430
    Tripp Lite Basic PDU, 30A, 38 Outlets (6 C19 & 32 C13), 208 / 240 V, L6-30P, 10 ft. Cord, 0U Vertical Rack-Mount Power (PDUV30HV)
    Quick View
    Tripp Lite Basic PDU, 30A, 38 Outlets (6 C19 & 32 C13), 208 / 240 V, L6-30P, 10 ft. Cord, 0U Vertical Rack-Mount Power (PDUV30HV)
    • Style: Vertical
    • Certifications: Tested to UL60950-1 (USA, Canada), NOM (Mexico)
    • Input Voltage: 200; 208; 240V
    • Input Connector(s): NEMA L6-30P
    • Model #: PDUV30HV
    APC Rack Mount PDU, Basic 208V/30A, (4) Outlets, 1U Horizontal Rackmount (AP9570)
    Quick View
    APC Rack Mount PDU, Basic 208V/30A, (4) Outlets, 1U Horizontal Rackmount (AP9570)
    • Certifications: cUL Listed,CSA,METI Denan,UL 60950,UL Listed
    • ROHS: Yes
    • Input Voltage: 200V,208V,230V
    • Input Frequency: 50/60 Hz
    • Model #: AP9570
    Tripp Lite 1.4 kWatts Single-Phase Switched PDU with LX Platform Interface, 120V Outlets (16 x 5-15R), 5-15P, 100 - 127V Input, 12.0 Feet Cord, 1U Rack-Mount, TAA (PDUMH15NET)
    Quick View
    Tripp Lite 1.4 kWatts Single-Phase Switched PDU with LX Platform Interface, 120V Outlets (16 x 5-15R), 5-15P, 100 - 127V Input, 12.0 Feet Cord, 1U Rack-Mount, TAA (PDUMH15NET)
    • Front Panel LEDs: 16 LEDs display power on - off status for each outlet; Digital Current Meter display shows total output power consumption in amps
    • Certifications: Tested to UL 60950-1 (USA, Canada), Class A (Emissions), NOM (Mexico), RoHS compliant
    • Input Voltage: 120V
    • Input Connector(s): NEMA 5-15P
    • Model #: PDUMH15NET
    APC Rack PDU, Metered, 2U, 30A, 208V, 12 x C13s & 4 x C19
    Quick View
    APC Rack PDU, Metered, 2U, 30A, 208V, 12 x C13s & 4 x C19
    • Certifications: cUL Listed, CSA, FCC Part 15 Class A, ICES-003, PSE, UL 60950, UL Listed
    • ROHS: Yes
    • Input Voltage: 200V, 208V, 230V
    • Input Frequency: 50/60 Hz
    • Model #: AP7811B
    Tripp Lite Basic PDU, 20A, 14 Outlets (5-15/20R), 120V, L5-20P Input, 15 Feet Cord, 0U Vertical Rack-Mount Power (PDU1420T)
    Quick View
    Tripp Lite Basic PDU, 20A, 14 Outlets (5-15/20R), 120V, L5-20P Input, 15 Feet Cord, 0U Vertical Rack-Mount Power (PDU1420T)
    • Style: Rackmount, Vertical Rackmount, Wallmount/Under-Counter
    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada)
    • Input Voltage: 120V
    • Output Frequency: 50/60Hz
    • Model #: PDU1420T
    Tripp Lite Metered PDU with ATS, 15A, 8 Outlets (5-15R), 120V, 2 5-15P, 100 - 127 V Input, 2 12 ft. Cords, 1U Rack-Mount Power, TAA (PDUMH15AT)
    Quick View
    Tripp Lite Metered PDU with ATS, 15A, 8 Outlets (5-15R), 120V, 2 5-15P, 100 - 127 V Input, 2 12 ft. Cords, 1U Rack-Mount Power, TAA (PDUMH15AT)
    • Style: Rackmount
    • Front Panel LEDs: 8 front panel LEDs display power on / off status for each outlet, plus 2 additional LEDs to indicate input power status for primary and secondary inputs
    • Certifications: Tested to UL 60950-1 (USA), CSA (Canada), Class A (Emissions), NOM (Mexico), RoHS compliant, TAA compliant
    • ROHS: Yes
    • Model #: PDUMH15AT
    Tripp Lite PDUV15 Basic 0U 120V 15A 15.0 Feet Single-Phase PDU NEMA 5-15R Outlets, NEMA 5-15P Input Plug
    Quick View
    Tripp Lite PDUV15 Basic 0U 120V 15A 15.0 Feet Single-Phase PDU NEMA 5-15R Outlets, NEMA 5-15P Input Plug
    • Style: Vertical Rackmount, Wallmount, Raceway, Workbench
    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada)
    • ROHS: Yes
    • Input Voltage: 100V; 120V; 127V
    • Model #: PDUV15
    CyberPower PDU41003 16-Outlets PDU
    Quick View
    CyberPower PDU41003 16-Outlets PDU
    • Input Voltage: 120V AC
    • Features: Product Type:PDU Product Name:PDU41003 16-Outlets PDU Output Receptacles:16 x NEMA 5-20R Form Factor:Rack-mountable Wall-mountable Package Contents: PDU41003 PDU 2 x Mounting Brackets 12 x M4x8 Bracket Mounting Screws 6 x M5x12 Rack Mounting Screws and Washers 2 x Cord Retention Trays 12 x M3x6 Cord Retention Tray Screws 24 x Cable Ties, RJ45/DB9 Serial Port Connection Cable User Manual Registration Card Download Card Form Factor:Rack-mountable Wall-mountable Input Receptacles:1 x NEMA L5-30P
    • Weight: 7.30 lbs.
    • Model #: PDU41003
    Tripp Lite 1.4 kWatts Single-Phase Switched PDU, LX Platform Interface, 120V Outlets (8 x 5-15R), NEMA x 5-15P, 12.0 Feet Cord, 1U Rack, TAA (PDUMH15NET2LX)
    Quick View
    Tripp Lite 1.4 kWatts Single-Phase Switched PDU, LX Platform Interface, 120V Outlets (8 x 5-15R), NEMA x 5-15P, 12.0 Feet Cord, 1U Rack, TAA (PDUMH15NET2LX)
    • Style: Horizontal
    • Certifications: Tested to UL 60950-1 (USA). CAN/CSA-C22.2 NO. 60950-1 (Canada), Class A Part 15 (Emissions), NOM (Mexico), RoHS compliant, TAA Compliant
    • ROHS: Yes
    • Input Voltage: 100V, 120V, 127V
    • Model #: PDUMH15NET2LX
    Tripp Lite Metered PDU, 15A, 16 Outlets (5-15R), 120 V, 5-15P, 15 ft. Cord, 0U Vertical Rack-Mount Power (PDUMV15)
    Quick View
    Tripp Lite Metered PDU, 15A, 16 Outlets (5-15R), 120 V, 5-15P, 15 ft. Cord, 0U Vertical Rack-Mount Power (PDUMV15)

    OUT OF STOCK

    • Certifications: Tested to UL60950-1 (USA) and CAN/CSA C22.2 No. 60950-1-03 (Canada), RoHS Compliant
    • ROHS: Yes
    • Input Voltage: 100; 120; 127V
    • Input Connector(s): NEMA 5-15P
    • Model #: PDUMV15

    A power distribution unit is a device that enables the sufficient flow of electricity in an IT network environment. It draws power from a source such as a universal power supply (UPS) or a wall outlet and acts as a source for network devices like switches, servers and the like. In appearance, it is similar to a household power strip. However, that is where the similarity ends. A PDU can do a lot more than just surge protection. From its form factor to advanced capabilities, manufacturers design PDUs for particular applications. A basic PDU will act as a surge protector and a noise filter, but a more advanced one can help you run an efficient network on your fingertips.

    Save Valuable Rack Space

    Although all PDUs are efficient in what they do, the design of rack power distribution units pushes the bar even further. With a minimal footprint, you can install these PDUs on the rack with provided hardware. The locations of the receptacles minimize the power line distance. You can get PDU surge protection in a variety of NEMA connector types. The locking connector types provide an additional feature for easier cable management. The configuration of traditional household power strips is different. Depending on your application, you can pick a PDU with the desired number of outlets.

    Stay in the Know With Real-Time Monitoring

    Metered power distribution units have a built-in display that shows the usage data. This real-time information can be as simple as the load or more broken down data for long term analysis. Some PDUs come with a network connection and can transmit this data for remote monitoring. A slight fluctuation in usage can change the balance of the load. With remote monitoring, you are aware of the current situation. This way, the issue of overloading can be easily avoided, and in some cases, you can make an informed decision about your existing network. For example, adding redundant power supplies. Often these PDUs are more rugged and come with shielded switches or no switches at all. This prevents any accidental shutoff of the network.

    Manage the PDU Remotely

    Switched rack PDUs add a level of convenience. Not only can you monitor your equipment’s performance from a distance, but you can also control them. The switched PDUs are capable of controlling each outlet individually. You can turn off the connection to redundant server power supplies when there is a strain on the PDU. If equipped with the necessary software, you can also automate this based on a preset schedule. If your application requires 100 percent up-time, you can choose a hot-swappable PDU. These PDUs can have dual power supplies. The secondary power supply acts as a redundant source and makes room for repairs and maintenance. These switched rack PDUs have a hot-swap switch that can change the source without losing power. Once you remove the UPS as a primary source, you can change its battery or tackle any maintenance issue it might have.