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OXA100U3O3QT ABB TruONE UL Automatic Transfer Switch with Level 3 Controller
ABB OXA100U3O3QT is a four-pole TruONE UL automatic transfer switch with a Level 3 controller, open-transition I-II operation, overlapping neutral and top-entry source connections for automatic power transfer applications.
£4,757.97
Why Choose the ABB OXA100U3O3QT TruONE Automatic Transfer Switch?
The ABB OXA100U3O3QT is a UL automatic transfer switch (ATS) from the ABB TruONE range, designed to provide automatic transfer between two power sources for critical and industrial electrical systems. It integrates the transfer switch and controller into a single purpose-built assembly, helping simplify installation, commissioning and ongoing operation.
This model features a Level 3 controller, open-transition I-II operation and an overlapping neutral arrangement. The overlapping neutral design keeps the neutral connected to the load during transfer between sources, with the overlapping neutral pole positioned on the right-hand side of the switch.
The OXA100U3O3QT has a 4-pole configuration and uses a top-entry arrangement, with Source 1 and Source 2 connections at the top and load connections at the bottom. ABB identifies this exact model with order code 1SCA153248R1001, and the switch is designed to the UL 1008 automatic transfer switch standard.
Key Advantages
- Integrated ABB TruONE automatic transfer switch and controller architecture.
- Level 3 controller for automatic transfer system control and monitoring.
- Open-transition I-II operation without a stable OFF position between sources.
- Overlapping neutral maintains the neutral connection to the load during source transfer.
- 4-pole configuration for three-phase systems with switched overlapping neutral.
- Top-entry source connections support organised switchboard installation.
- Designed to UL 1008 requirements for automatic transfer switching equipment.
Key Features
- ABB TruONE ATS series.
- Level 3 controller.
- 4-pole automatic transfer switch.
- Open-transition I-II switching operation.
- Overlapping neutral configuration.
- Overlapping neutral pole located on the right-hand side.
- Top entry for Source 1 and Source 2 connections.
- Load connections positioned at the bottom.
- Detachable HMI arrangement with connection cable between the HMI and ATS frame.
- Manual operating handle included as part of the TruONE assembly.
Integrated Automatic Power Transfer for Critical Loads
The ABB TruONE architecture combines the switching mechanism and automatic transfer controller into one integrated assembly. The controller monitors the transfer system and enables automatic switching between available power sources, reducing the amount of external wiring and separate control equipment required in an automatic transfer installation.
For the OXA100U3O3QT, open-transition operation transfers the load between Source 1 and Source 2 without a stable OFF position between positions I and II. Its overlapping neutral arrangement maintains the neutral connection during the transfer process, making the unit suitable for applications where continuity of the neutral conductor during source transfer is required.
Typical Applications
- Automatic mains-to-generator transfer systems.
- Critical power distribution installations.
- Commercial and industrial electrical switchboards.
- Standby and emergency power systems.
- Infrastructure and building power distribution.
- Industrial facilities requiring automatic transfer between two power sources.
Technical Specifications
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| Operation | Automatic | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Series | TruONE | |
| ABB order code | 1SCA153248R1001 | |
| Product group | OT Change over Switches | |
| Product type | Automatic transfer switch | |
| Controller | Level 3 | |
| Number of poles | 4 | |
| Transition type | Open transition | |
| Operating sequence | I-II without stable OFF position | |
| Neutral configuration | Overlapping neutral | |
| Source connection position | Top | |
| Load connection position | Bottom | |
| Standard | UL 1008 | |
| Rated impulse withstand voltage | 8 kV | |
| Rated insulation voltage | 1000 V | |
| Dimensions (H × W × D) | approx. 305 × 375 × 183 mm | |
| Weight | approx. 15.77 kg |
Frequently Asked Questions
What is the ABB OXA100U3O3QT used for?
The ABB OXA100U3O3QT is a TruONE automatic transfer switch designed to automatically transfer a load between two electrical power sources in critical, commercial and industrial power systems.
What controller does the OXA100U3O3QT use?
The OXA100U3O3QT is equipped with an ABB Level 3 controller for automatic transfer control and system monitoring.
What does overlapping neutral mean on the OXA100U3O3QT?
Overlapping neutral means that the neutral remains connected to the load during transfer from one source to the other. On this model, the overlapping neutral pole is positioned on the right-hand side.
What type of transfer operation does this ABB TruONE switch use?
The OXA100U3O3QT uses open-transition I-II operation without a stable OFF position between positions I and II.
How are the power connections arranged on the OXA100U3O3QT?
This model uses a top-entry configuration, with Source 1 and Source 2 connected at the top of the switch and the load connections positioned at the bottom.
Trusted by Critical Power Professionals Worldwide
ABB TruONE automatic transfer switches combine switching and control functions in an integrated platform for dependable power-source transfer, helping electrical engineers and system integrators simplify critical power distribution and standby supply installations.
