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OXB250E3S3QT ABB TruONE Automatic Transfer Switch 250 A 4P
ABB OXB250E3S3QT TruONE automatic transfer switch, a 250 A 4 pole ATS with Level 3 LCD controller designed for reliable automatic power transfer in low voltage distribution systems.
£4,804.03
Why Choose the ABB OXB250E3S3QT TruONE Automatic Transfer Switch?
The ABB OXB250E3S3QT is a high-performance automatic transfer switch (ATS) designed to provide reliable source transfer for critical low-voltage power distribution systems. As part of the advanced ABB TruONE automatic transfer switch series, it integrates the switching mechanism and controller into a single seamless unit to simplify installation, improve reliability and support continuous power availability. :chatgpt-content-reference{index="0"}
This TruONE ATS features an integrated Level 3 (LCD) controller, open style construction and delayed transition I-O-II operation. The self-contained design reduces wiring requirements and connection points, helping speed installation while minimising potential connection failures and reducing service downtime. :chatgpt-content-reference{index="1"}
With a 250 A rated current, 4-pole switched configuration, 200–480 V AC main circuit voltage and a Supplies on Top – Load on Bottom terminal arrangement, the OXB250E3S3QT is suitable for demanding automatic transfer applications requiring dependable switching between power sources. :chatgpt-content-reference{index="2"}
Key Advantages
- ABB TruONE automatic transfer switch technology with integrated switch and controller design.
- 250 A rated current suitable for high-capacity low-voltage power transfer applications.
- 4-pole switched configuration with simultaneous neutral switching function.
- Level 3 (LCD) controller for advanced ATS configuration and monitoring.
- Delayed transition I-O-II operation for controlled source transfer sequences.
- Self-contained construction reduces installation complexity.
- Modular components support easier maintenance and reduced downtime.
Key Features
- ABB TruONE ATS series.
- Automatic transfer switch with integrated controller.
- 250 A conventional free-air thermal current.
- 4-pole switched simultaneous function.
- Level 3 (LCD) controller.
- Open style ATS design.
- Supplies on top, load on bottom terminal arrangement.
- Delayed transition type I-O-II operation.
- Direct mounted handle for manual operation.
- Bolt terminal connection.
Reliable Automatic Power Transfer for Critical Systems
Automatic transfer switches such as the ABB TruONE OXB250E3S3QT help maintain continuity of electrical supply by automatically transferring connected loads between available power sources when required. The integrated switching and control architecture improves operational reliability while reducing installation complexity.
The TruONE platform is engineered for modern electrical distribution environments requiring dependable transfer performance, advanced monitoring and simplified maintenance. Its Level 3 LCD controller provides enhanced configuration options for standby power and critical power applications.
Typical Applications
- Critical power distribution systems.
- Generator backup and standby power systems.
- Industrial electrical installations.
- Commercial building power systems.
- Healthcare and essential service facilities.
- Low-voltage switchboards and distribution assemblies.
Technical Specifications
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| Operation | Automatic | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Series | TruONE Automatic Transfer Switches | |
| Product type | Automatic transfer switch (ATS) | |
| Order code | 1SCA153458R1001 | |
| Rated current | 250 A | |
| Number of poles | 4P | |
| Controller type | Level 3 (LCD) | |
| ATS style | Open style | |
| Transition type | Delayed | |
| Main circuit 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 | |
| Line terminal position | Supplies on top, load on bottom | |
| Standards | IEC60947-6-1 | |
| Protection rating | Front IP20 | |
| Mounting style | Open style ATS | |
| Dimensions (H × W × D) | 305 × 375 × 183 mm | |
| Weight | 15.57 kg |
Frequently Asked Questions
What is the ABB OXB250E3S3QT used for?
The ABB OXB250E3S3QT is an automatic transfer switch designed to transfer electrical loads between available power sources in low-voltage distribution systems.
What is the rated current of this TruONE ATS?
The OXB250E3S3QT has a rated current of 250 A.
What controller is included with the OXB250E3S3QT?
The ATS includes an integrated Level 3 (LCD) controller for advanced monitoring and configuration.
How many poles does the ABB OXB250E3S3QT have?
The OXB250E3S3QT features a 4-pole switched configuration with simultaneous function.
What voltage range does the ABB TruONE ATS support?
The OXB250E3S3QT supports a main circuit voltage range of 200–480 V AC.
Trusted by Power Distribution Professionals Worldwide
ABB TruONE automatic transfer switches are used by electrical engineers and system integrators worldwide to provide reliable automatic source transfer, simplified installation and dependable operation in critical power environments.
