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An Automatic Transfer Switch (ATS) is a device that automatically transfers the load between two power sources, typically between a utility power supply and a backup generator. It is designed to ensure a continuous power supply by switching to the backup source in the event of a power failure. ATS units are commonly made from durable materials such as steel or aluminum and include electrical components that facilitate the automatic switching process.
| Voltage rating | 120V to 480V |
| Current rating | 30A to 2000A |
| Number of poles | 1 to 4 poles |
| Control type | Electronic or electromechanical |
| Transfer time | Less than 30 seconds |
| Enclosure type | NEMA 1, NEMA 3R, or NEMA 4 |
When selecting an Automatic Transfer Switch, consider the voltage and current ratings required for your application. Specify the number of poles needed based on your electrical system configuration. It's also important to determine the transfer time that meets your operational requirements. Additionally, inquire about certifications such as UL listing and any specific environmental ratings for the enclosure. Providing the expected load and quantity will help suppliers offer the most suitable options.
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An ATS automatically switches power sources to ensure continuous electrical supply during outages.
It monitors the utility power and activates the backup generator when it detects a failure.
Most ATS units transfer power in less than 30 seconds.
Yes, ensure the ATS matches the voltage of your electrical system.
Yes, ATS can be integrated with renewable energy systems for seamless power management.
Look for UL listing and compliance with local electrical codes.