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OXA160U3O3QB ABB TruONE 160 A 4-Pole Automatic Transfer Switch Level 3 Overlapping Neutral
ABB OXA160U3O3QB is a 160 A 4-pole TruONE automatic transfer switch with Level 3 controls, open-transition operation, overlapping neutral, bottom source connections and top load connections.
£5,711.37
Why Choose the ABB OXA160U3O3QB TruONE Automatic Transfer Switch?
The ABB OXA160U3O3QB is a 160 A, 4-pole TruONE automatic transfer switch (ATS) designed for automatic transfer of electrical loads between two power sources. Part of ABB's TruONE ATS range, it combines the transfer switching mechanism and advanced control functions within an integrated assembly for critical, standby and industrial power distribution systems.
This model features a Level 3 controller, open-transition I-II operation and an overlapping neutral. The overlapping neutral arrangement ensures that the neutral is not disconnected from the load while transferring from one source to another, with an overlap period of less than 100 ms.
With a rated current of 160 A under both UL and IEC ratings, the OXA160U3O3QB uses a 4-pole configuration with the overlapping neutral pole on the right-hand side. Source 1 and Source 2 connections are positioned at the bottom, while the load connections are positioned at the top, supporting convenient integration into compatible electrical switchboards.
Key Advantages
- 160 A automatic transfer switch for standby and critical power systems.
- 4-pole configuration with overlapping neutral switching.
- Integrated Level 3 controller for automatic transfer control and monitoring.
- Open-transition I-II operation without a stable OFF position between sources.
- Overlapping neutral remains connected to the load during source transfer.
- Bottom source connections and top load connections for the specified installation arrangement.
- Integrated ABB TruONE architecture helps reduce external wiring and separate transfer-system components.
Key Features
- ABB TruONE ATS series.
- 160 A UL rated current.
- 160 A IEC rated current.
- 4-pole automatic transfer switch.
- Level 3 controls.
- Open-transition I-II operation.
- Overlapping neutral with an overlap period below 100 ms.
- Overlapping neutral pole positioned on the right-hand side.
- Source 1 and Source 2 connections at the bottom.
- Load connections at the top.
- Supplied with a manual operating handle.
- Supplied with a 2 m connection cable between the detachable HMI and ATS frame.
Integrated Automatic Transfer with Overlapping Neutral
The ABB TruONE platform integrates the automatic transfer mechanism and control system into a purpose-built ATS assembly. By monitoring available power sources and controlling transfer operation, the system supports dependable changeover between normal and alternative supplies while reducing the external components and wiring typically associated with automatic transfer installations.
The OXA160U3O3QB uses open-transition I-II operation with an overlapping neutral. During transfer, the neutral remains connected to the load while the source changes, with the neutral contacts overlapping for less than 100 ms. This configuration is suited to installations where maintaining neutral continuity during the transfer sequence is required.
Typical Applications
- Automatic mains-to-generator transfer systems.
- Critical and standby power distribution.
- Commercial and industrial electrical switchboards.
- Emergency power supply installations.
- Building services and infrastructure power systems.
- Industrial facilities requiring automatic source transfer with overlapping neutral.
Technical Specifications
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| Operation | Automatic | |
|---|---|---|
| Device Type | Automatic transfer switch | |
| Series | TruONE ATS | |
| ABB order code | 1SCA153289R1001 | |
| Product group | OT Change over Switches | |
| Product type | Automatic transfer switch | |
| Rated current (UL) | 160 A | |
| Rated current (IEC) | 160 A | |
| Number of poles | 4 | |
| Controller | Level 3 | |
| Transition type | Open transition with overlapping neutral | |
| Operating sequence | I-II without stable OFF position | |
| Neutral configuration | Overlapping neutral | |
| Neutral overlap period | Below 100 ms | |
| Source connection position | Bottom | |
| Load connection position | Top | |
| HMI connection cable | 2 m | |
| Dimensions (H × W × D) | approx. 305 × 375 × 183 mm | |
| Weight | approx. 15.74 kg |
Frequently Asked Questions
What is the ABB OXA160U3O3QB used for?
The ABB OXA160U3O3QB is a 160 A automatic transfer switch designed to transfer electrical loads between two power sources in critical, standby and industrial power distribution systems.
What does overlapping neutral mean on the OXA160U3O3QB?
Overlapping neutral means the neutral is not disconnected from the load during transfer from one source to another. The neutral contact overlap period for this TruONE configuration is below 100 ms.
How many poles does the ABB OXA160U3O3QB have?
The OXA160U3O3QB has a 4-pole configuration, with the overlapping neutral pole positioned on the right-hand side.
Where are the source and load connections on the OXA160U3O3QB?
The switch has Source 1 and Source 2 connections at the bottom and the load connections at the top.
Which controller is fitted to the ABB OXA160U3O3QB?
The OXA160U3O3QB uses ABB Level 3 controls and includes a detachable HMI connected to the ATS frame by a supplied 2 m cable.
Trusted by Critical Power Professionals Worldwide
ABB TruONE automatic transfer switches integrate switching and control functions into a dedicated ATS platform, helping electrical engineers, panel builders and system integrators implement dependable automatic source transfer in commercial, infrastructure and industrial power systems.
