OXA125U3O3QB ABB TruONE Automatic Transfer Switch 125A 4 Pole

OXA125U3O3QB ABB TruONE Automatic Transfer Switch 125A 4 Pole

ABB OXA125U3O3QB TruONE automatic transfer switch with 125 A four pole UL 1008 operation, Level 3 LCD controller and open transition switching for critical power applications.

SKU: OXA125U3O3QBAlt SKU: 1SCA153269R1001MPN: OXA125U3O3QB
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Manufacturer Lead Time

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Why Choose the ABB OXA125U3O3QB TruONE Automatic Transfer Switch?

The ABB OXA125U3O3QB is a high-performance automatic transfer switch (ATS) from the ABB TruONE series, designed to provide reliable automatic power transfer between two power sources for critical electrical loads. Combining the switching mechanism and controller into one integrated unit, TruONE simplifies installation, improves reliability and supports dependable power continuity in industrial and commercial applications. :chatgpt-content-reference{index="0"}

This UL 1008 compliant ATS features an open transition design with I-II operation, a Level 3 LCD controller and an integrated switched neutral arrangement. The compact all-in-one construction reduces wiring requirements while providing advanced monitoring, configuration and control functions for critical power systems. :chatgpt-content-reference{index="1"}

With a 125 A rated current, 4-pole configuration, 200–480 V AC operating range and open transition switching, the ABB OXA125U3O3QB is suitable for automatic transfer applications requiring reliable source changeover and uninterrupted power management. :chatgpt-content-reference{index="2"}

Key Advantages

  • Integrated TruONE automatic transfer switch with built-in controller.
  • 125 A UL rated current for critical power applications.
  • 4-pole design with switched neutral for enhanced system flexibility.
  • Open transition I-II operation for reliable source transfer.
  • Level 3 LCD controller simplifies setup and monitoring.
  • Compact design reduces installation time and wiring complexity.

Key Features

  • ABB TruONE automatic transfer switch series.
  • OXA125U3O3QB ATS.
  • 125 A UL 1008 rated automatic transfer switch.
  • 4-pole configuration.
  • Open transition type I-II operation.
  • Level 3 LCD controller.
  • 200–480 V AC supply voltage range.
  • Direct mounted handle for manual operation.
  • Bottom supply and top load terminal arrangement.
  • Integrated control and switching unit design.

Reliable Automatic Power Transfer Control

Automatic transfer switches are used to maintain power availability by automatically transferring electrical loads between primary and backup sources when required. The ABB TruONE platform integrates switching and control functions into a single device, reducing installation complexity and improving system reliability. :chatgpt-content-reference{index="3"}

The OXA125U3O3QB provides advanced control, monitoring and automatic source transfer capability for critical power applications where dependable electrical continuity is essential. :chatgpt-content-reference{index="4"}

Typical Applications

  • Emergency power systems.
  • Generator backup installations.
  • Critical industrial power supplies.
  • Commercial building power systems.
  • Data centre and infrastructure power applications.
  • Automatic mains and standby source transfer systems.

Technical Specifications

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Operation Automatic
Device Type Automatic transfer switch
Series TruONE Automatic Transfer Switches
Product type Automatic transfer switch
Rated current 125 A
UL/CSA ampere rating 125 A at 200–480 V AC
Number of poles 4 poles
Fourth pole type Switched - late-break and early-make
Transition type Open transition
Controller type Level 3 LCD
Rated operational voltage 200–480 V AC
Rated frequency 50 / 60 Hz
Rated insulation voltage 1000 V
Rated impulse withstand voltage 8 kV
Terminal type Bolt terminals
Handle type Direct mounted handle
Protection rating IP20 front protection
Standard UL 1008
Dimensions (W × H × D) 375 × 305 × 183 mm
Weight approx. 15.04 kg

Frequently Asked Questions

What is the ABB OXA125U3O3QB used for?

The ABB OXA125U3O3QB is an automatic transfer switch used to transfer electrical loads between two power sources in critical power systems.

What current rating does the ABB OXA125U3O3QB have?

The OXA125U3O3QB has a rated current of 125 A.

How many poles does this TruONE ATS have?

The ABB OXA125U3O3QB is a 4-pole automatic transfer switch with a switched neutral pole.

What type of controller is included?

The ABB OXA125U3O3QB includes a Level 3 LCD controller for setup, monitoring and control.

What transition type does this ATS use?

The OXA125U3O3QB uses an open transition I-II transfer method.

Trusted by Critical Power Professionals Worldwide

ABB TruONE automatic transfer switches are designed to provide reliable automatic power transfer, simplified installation and advanced control for critical electrical systems.