OXB400E3S4QT ABB TruONE Automatic Transfer Switch 400 A

OXB400E3S4QT ABB TruONE Automatic Transfer Switch 400 A

ABB OXB400E3S4QT TruONE automatic transfer switch, a 400 A four pole ATS with Level 4 Touch controller designed for reliable automatic power transfer in critical electrical systems.

SKU: OXB400E3S4QTAlt SKU: 1SCA153519R1001MPN: OXB400E3S4QT
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List Price £11,775.40 ex VAT
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Manufacturer Lead Time

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Why Choose the ABB OXB400E3S4QT TruONE Automatic Transfer Switch?

The ABB OXB400E3S4QT is a reliable automatic transfer switch (ATS) designed to provide dependable power source transfer in critical electrical distribution systems. As part of the advanced ABB TruONE ATS series, it combines the switch mechanism and controller into one integrated unit to simplify installation, reduce wiring complexity and improve operational reliability.

This TruONE automatic transfer switch features a Level 4 Touch controller with delayed transition I-O-II operation, providing advanced monitoring, configuration and control capabilities. The integrated design helps reduce installation time while supporting predictive maintenance and improved service efficiency for industrial and commercial power applications.

With a rated current of 400 A, a 4-pole configuration and a 200–480 V AC main circuit voltage range, the ABB OXB400E3S4QT is designed for dependable automatic transfer between normal and standby power sources. This model features supplies on top and load on bottom terminal positioning for straightforward system integration. :chatgpt-content-reference{index="0"}

Key Advantages

  • ABB TruONE automatic transfer switch technology combining switching and controller functions in one unit.
  • 400 A rated current suitable for demanding power transfer applications.
  • Level 4 Touch controller for advanced ATS operation and configuration.
  • Delayed transition I-O-II operation for controlled source transfer.
  • Integrated design reduces wiring requirements and simplifies installation.
  • Reliable power continuity solution for critical electrical infrastructure.

Key Features

  • ABB TruONE ATS series.
  • 400 A automatic transfer switch.
  • 4-pole switched simultaneous fourth pole function.
  • Level 4 (Touch) controller.
  • Delayed transition type I-O-II operation.
  • 200–480 V AC main circuit voltage range.
  • 50–60 Hz rated frequency.
  • Open style automatic transfer switch construction.
  • Direct mounted handle for manual operation.
  • Supplies on top and load on bottom terminal arrangement.
  • Front IP20 protection rating.

Reliable Automatic Power Transfer for Critical Systems

Automatic transfer switches such as the ABB TruONE OXB400E3S4QT provide dependable switching between primary and standby power sources to maintain continuity in essential electrical installations. The integrated switch and controller design helps reduce connection points, simplify commissioning and support reliable long-term operation.

The TruONE platform provides advanced connectivity, modular components and predictive maintenance features to support modern electrical distribution requirements. The OXB400E3S4QT is engineered for applications where dependable automatic transfer and efficient maintenance are essential. :chatgpt-content-reference{index="1"}

Typical Applications

  • Emergency and standby power systems.
  • Industrial electrical distribution.
  • Commercial buildings and infrastructure.
  • Generator automatic transfer applications.
  • Critical power installations.
  • Automatic mains failure (AMF) systems.

Technical Specifications

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Operation Automatic
Device Type Automatic transfer switch
Series TruONE Automatic Transfer Switches
Product ID 1SCA153519R1001
Product type Automatic transfer switch
Rated operational current 400 A
Number of poles 4P
Controller type Level 4 (Touch)
Transition type Delayed transition I-O-II
Main circuit voltage 200–480 V AC
Rated frequency 50–60 Hz
Rated insulation voltage 1000 V
Rated impulse withstand voltage 12 kV
Rated short-time withstand current 25 kA rms for 0.3 s
Protection rating Front IP20
Terminal position Supplies on top, load on bottom
Fourth pole type Switched - simultaneous function
Mounting handle type Direct mounted handle
Dimensions (H × W × D) approx. 305 × 455 × 183 mm
Weight approx. 17.78 kg

Frequently Asked Questions

What is the ABB OXB400E3S4QT used for?

The ABB OXB400E3S4QT is an automatic transfer switch designed to transfer electrical loads between normal and standby power sources in critical power systems.

What is the rated current of this TruONE ATS?

The ABB OXB400E3S4QT has a rated operational current of 400 A.

How many poles does the ABB OXB400E3S4QT have?

The OXB400E3S4QT is a 4-pole automatic transfer switch with a switched simultaneous fourth pole function.

What controller is included with this ATS?

The ABB OXB400E3S4QT includes a Level 4 Touch controller for advanced operation, monitoring and configuration.

What voltage range does the ABB OXB400E3S4QT support?

The main circuit supports a 200–480 V AC operating voltage range.

Trusted by Power System Engineers Worldwide

ABB TruONE automatic transfer switches are used by electrical engineers and facility operators worldwide to provide reliable automatic power transfer, simplified installation and dependable performance in critical electrical systems.