10000 Woodward Avenue
Woodridge, Illinois 60517
+1 773-869-1776
+1 (773) 869-1329
United States
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Bypass PDU maintains continuous power to connected equipment during scheduled UPS maintenance or replacement.

  • Ideal for supporting critical IT equipment that require 24/7/365 uptime
  • Transfers connected components to utility power with no downtime during UPS maintenance
  • Dual UPS and utility input cables with NEMA 5-15P plugs deliver AC power
  • ECO mode saves power by shutting down controlled outlet bank in certain conditions
  • Mounts into 1U of rack space or onto wall using included mounting hardware
  • 2-year limited warranty


Bypass PDU Recommended for Maintaining Continuous Power During UPS Maintenance
Keeping mission-critical data center equipment operating at its optimal level often means scheduled maintenance. But what if you are unable to afford the costly downtime involved in powering down for regular upkeep? This 100-125V 12A single-phase hot-swap rack PDU (rPDU) works in conjunction with your UPS system to keep everything running 24/7/365. It allows you to manually transfer connected equipment to utility power via the PDU’s bypass switch, permitting maintenance or equipment replacement with no interruption of performance.

Features Dual Inputs and a Manual Transfer Switch for Uninterrupted Operation
The PDUB151U includes separate UPS and utility input cables with NEMA 5-15P plugs. The manual transfer switch allows PDU output power to flow from either input. Flip the switch to Bypass to replace the UPS and flip back to Normal once the maintenance or UPS replacement is complete. Equipment connected to the six NEMA 5-15R outlets will continue to operate without interruption.

Optional ECO Switching Feature Enables Cost-Cutting Power Savings
By enabling the ECO power saving feature, you can power off a single bank of five controlled 5-15R outlets all at once when the device connected to the master 5-15R outlet is powered off or goes into a low-power consumption mode. 

Mounts into 1U of Rack Space or Wall
Use the included mounting hardware to install the PDUB151U’s all-metal housing into 1U of space in an EIA-standard 19-inch rack. You may also use the mounting brackets to secure the PDU to a wall.

Package Includes

  • PDUB151U 100-125V 15A Single-Phase Hot-Swap PDU
  • Mounting hardware
  • Owner’s manual
RoHS compliant


UPC Code037332253071
PDU TypeHot-Swap
Input PhaseSingle-Phase
PDU Input Voltage100; 120; 125
Recommended Electrical ServiceWorks with most 100-125V UPS systems up to 1500VA
Maximum Input Amps12
Maximum Input Amps DetailsAgency de-rated to 12A continuous
PDU Plug Type(2) NEMA 5-15P
Input Cord DetailsUtility input cable (10 ft / 3m) / UPS input cable (4 ft / 1.2m)
Input Cord Length (ft.)10
Output Capacity Details1.52kW (125V), 1.44kW (120V), 1.2kW (100V) / 15A total capacity (Agency de-rated to 12A); 12A max per 5-15R outlet
Frequency Compatibility50 / 60 Hz
Output Receptacle DetailsSet of 6 output receptacles are arranged in two groups to support the optional ECO Power-Saving feature; One MASTER-outlet provides optional current-sense capability that when enabled, automatically powers off the bank of 5 CONTROLLABLE GROUP-outlets when the device connected to the MASTER-outlet is powered off or enters a low power sleep mode consuming 20W or less (±5W)
Output Receptacles(6) 5-15R
Output Nominal Voltage100-125V
Front Panel LEDsFront panel LEDs report UTILITY Input Power ON (green), BYPASS-MODE Switch Setting (yellow), MASTER Outlet Power ON (green), CONTROLLABLE GROUP Outlets Power ON (green)
Switches2 position Manual Transfer switch offers Break-Before-Make transfer between UPS and Utility operating modes with less than 8 milliseconds (typical) transfer time; Additional switch offers ENABLE/DISABLE control of the ECO Power-Saving feature
Material of ConstructionMetal
Rack Height  1U
Form Factors SupportedIncludes installation accessories for wall mount and 1U horizontal rackmount installation in 2 or 4 post equipment racks
PDU Form FactorHorizontal (1U)
Shipping Dimensions (hwd / in.)5.20 x 8.00 x 21.30
Unit Dimensions (hwd / in.)1.730 x 17.240 x 3.940
Unit Weight (lbs.)5.2
Operating Temperature Range32° to 104°F (0° to 40°C)
Storage Temperature Range-22° to 122°F (-30° to 50°C)
Relative Humidity5% to 95% non-condensing
Operating Elevation0-10000 ft. (0-3000 m)
High Availability PDU Features  Manual Hot-Swap Bypass
Product CertificationsCAN/CSA-C22.2 No. 62368-1 (Canada); NOM (Mexico); UL 62368-1
Product ComplianceRoHS
Product Warranty Period (Worldwide)2-year limited warranty

Questions & Answers

Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 773-869-1776 or email