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OXB250E3S2QT ABB TruONE Automatic Transfer Switch 250 A
ABB OXB250E3S2QT TruONE automatic transfer switch, a 250 A four-pole open style ATS with Level 2 DIP controller and delayed transition operation for reliable power transfer applications.
£3,331.49
Why Choose the ABB OXB250E3S2QT TruONE Automatic Transfer Switch?
The ABB OXB250E3S2QT is a reliable automatic transfer switch (ATS) designed for dependable power source transfer in critical electrical installations. As part of the advanced ABB TruONE automatic transfer switch series, it integrates the switching mechanism and controller into one purpose-built unit to simplify installation, improve reliability and support efficient power management. :chatgpt-content-reference{index="0"}
This TruONE ATS features an open style design, delayed transition I-O-II operation and a Level 2 DIP controller, providing intelligent transfer control and straightforward configuration for modern power distribution systems. :chatgpt-content-reference{index="1"}
With a 250 A rating, four-pole configuration and a 200–480 V AC main circuit voltage range, the OXB250E3S2QT is suitable for industrial, commercial and infrastructure applications where reliable automatic source transfer is required. :chatgpt-content-reference{index="2"}
Key Advantages
- Integrated ABB TruONE automatic transfer switch solution combining switch and controller technology.
- 250 A rated current capability for demanding power transfer applications.
- Four-pole ATS configuration for flexible three-phase power systems.
- Level 2 DIP controller provides reliable automatic transfer control.
- Delayed transition I-O-II operation supports controlled transfer sequences.
- Compact integrated construction reduces wiring and installation requirements.
Key Features
- ABB TruONE automatic transfer switch series.
- Model: OXB250E3S2QT.
- 250 A rated operational current.
- 4-pole open style ATS design.
- Level 2 (DIP) controller.
- Delayed transition type I-O-II operation.
- 200–480 V AC main circuit voltage range.
- 50–60 Hz rated frequency.
- Direct mounted handle design.
- Bolt terminal connection system.
- Line terminals positioned with supplies on top and load on bottom.
Reliable Automatic Power Transfer for Critical Systems
Automatic transfer switches such as the ABB TruONE OXB250E3S2QT help maintain continuity of electrical supply by automatically transferring loads between available power sources. The integrated switching and controller design reduces system complexity while supporting reliable operation in critical power environments.
The TruONE platform is engineered for modern electrical distribution systems with modular construction, advanced monitoring capability and simplified maintenance. Its integrated design helps minimise wiring requirements and supports efficient installation within industrial and commercial power systems.
Typical Applications
- Industrial power distribution systems.
- Emergency and standby generator installations.
- Commercial buildings and infrastructure.
- Critical power systems.
- Data centres and essential services.
- Automation and electrical control installations.
Technical Specifications
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| Coil / Supply Voltage | 200–480 V AC | |
|---|---|---|
| Operation | Automatic | |
| Device Type | Automatic transfer switch | |
| Series | TruONE Automatic Transfer Switches | |
| Product type | Automatic transfer switch | |
| Product ID | 1SCA153457R1001 | |
| Rated current | 250 A | |
| Number of poles | 4P | |
| Controller type | Level 2 (DIP) | |
| Transition type | Delayed transition I-O-II | |
| Design type | Open style ATS | |
| Operating voltage | 200–480 V AC | |
| Rated frequency | 50–60 Hz | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Rated short-time withstand current | 18 kA rms for 0.3 s | |
| Terminal type | Bolt | |
| Protection rating | Front IP20 | |
| Pollution degree | 3 | |
| Standards | IEC60947-6-1 | |
| Dimensions (H × W × D) | approx. 305 × 375 × 183 mm | |
| Weight | approx. 15.57 kg |
Frequently Asked Questions
What is the ABB OXB250E3S2QT used for?
The ABB OXB250E3S2QT is an automatic transfer switch designed to transfer electrical loads between power sources in critical power applications.
What is the current rating of this TruONE transfer switch?
The OXB250E3S2QT has a rated current of 250 A.
How many poles does the ABB OXB250E3S2QT have?
This automatic transfer switch has a four-pole configuration.
What type of controller is included?
The OXB250E3S2QT includes a Level 2 DIP controller for automatic transfer management.
What type of transition operation does this ATS provide?
The OXB250E3S2QT provides delayed transition I-O-II operation for controlled power transfer sequences.
Trusted by Power System Engineers Worldwide
ABB TruONE automatic transfer switches are used in critical power installations worldwide to provide reliable source transfer, intelligent control and efficient electrical system management.
