Automatic Transfer Switches (ATS)
Compare published VIOX automatic transfer switch series for source transfer in low-voltage distribution systems. Confirm poles, rated current, control mode and switching requirements by model.
Two-source transferNormal and alternate supply
Pole configurationConfirm by series
Control logicAutomatic or manual functions
Project matchingVerify source and load data
What is an automatic transfer switch?
An automatic transfer switch monitors the selected supply conditions and transfers a load between a normal source and an alternate source according to its control logic. It is used where continuity of supply requires an arranged changeover path.
An ATS must be selected as part of the complete distribution system. Rated current, pole arrangement, utilization requirements, transfer sequence, control supply, source conditions and coordination with protective devices all need verification.
ATS Series Overview
Compare published VIOX models using facts already available in product data.
VIOX VOQ2-63
Automatic transfer switchReview model data
VIOX VOQ3
Automatic transfer switchReview model data
VIOX VOQ3-43
Automatic transfer switchReview model data
VIOX VOQ3-46
Automatic transfer switchReview model data
VIOX VOQ4-100E
Automatic transfer switchReview model data
VIOX VOQ4-100R
Automatic transfer switchReview model data
VIOX VOQ4-63AE
Automatic transfer switchReview model data
VIOX VOQ4-80AE
Automatic transfer switchReview model dataHow to choose an ATS
Define both sources, the load and the required transfer sequence before comparing switch series.
Rated current and utilization
Match the connected load, switching duty and upstream protective-device coordination.
Pole and neutral arrangement
Confirm the number of switched poles and the project neutral strategy.
Transfer and control logic
Check operating mode, source monitoring, delays and controller functions by model.
Mechanical integration
Verify mounting, wiring access, operating mechanism and enclosure space.
Define the transfer sequence
Transfer behavior varies by controller and switch series. Confirm the exact sequence before specifying the product.
Compare published ATS series
Blank cells mean the value is not available in the current product summary. Open the model page or request its datasheet before specification.
| Series | Configuration | Rated current | Rated voltage | Control mode |
|---|---|---|---|---|
| VIOX VOQ2-63 | — | — | — | — |
| VIOX VOQ3 | — | — | — | — |
| VIOX VOQ3-43 | — | — | — | — |
| VIOX VOQ3-46 | — | — | — | — |
| VIOX VOQ4-100E | — | — | — | — |
| VIOX VOQ4-100R | — | — | — | — |
| VIOX VOQ4-63AE | — | — | — | — |
| VIOX VOQ4-80AE | — | — | — | — |
ATS Applications
Typical environments where the exact product characteristics must be verified.
Residential Buildings
Source transfer for selected residential and mixed-use distribution systems.
Industrial Automation
Continuity support for process auxiliaries and industrial distribution loads.
Solar & Energy Storage
Coordinated source selection within approved hybrid and backup-power architectures.
ATS Knowledge & Selection Guides
All articles
ATS Selection Questions
Quick answers for preliminary product-family comparison before detailed circuit verification.
What does an automatic transfer switch do?
An ATS transfers a load between two arranged supply sources according to the monitoring and control functions of the selected model.
Which information is needed to select an ATS?
Confirm both source voltages and frequencies, load current, poles, neutral arrangement, switching duty, transfer sequence, control requirements and installation method.
Is an ATS an overcurrent protective device?
An ATS performs switching and transfer. Overload and short-circuit protection must be coordinated with the protective devices specified for the system.
Can every ATS switch a generator supply?
Generator applications require compatible source monitoring, timing, control interfaces and switching ratings. Confirm these functions on the exact series.
What is the difference between automatic and manual transfer?
Automatic transfer uses monitoring and controller logic to initiate the sequence. Manual operation requires an operator action; available modes vary by model.
Need the Right ATS?
Let’s Define the Transfer Sequence.
Send both source details, load current, pole arrangement, control requirements, quantity and target market. VIOX will help identify the relevant published series.
Request ATS Support