ATS PDU

Automatic Transfer Switch Power Distribution Units (ATS PDUs) are critical devices used in data centers and IT environments to ensure continuous power supply to equipment. They automatically switch between two power sources, providing redundancy and minimizing downtime in case of power failures.
Key Features of ATS PDUs

Automatic Switching

ATS PDUs can switch from a primary to a secondary power source within milliseconds (typically 2-5 ms), ensuring that connected equipment remains powered without interruption during outages or instability of the primary source.

Redundant Power Supply

These units are designed for equipment that has a single power supply but requires dual power feeds for redundancy. By connecting to two separate power sources, ATS PDUs enhance reliability and uptime.

Monitoring Capabilities

Many ATS PDUs come with built-in monitoring features that allow users to track power usage and load levels in real-time. This helps prevent overloads and ensures that the total load remains below maximum capacity.

Installation and Compatibility

ATS PDUs typically fit into standard 19-inch racks and can accommodate various outlet types, such as C13 and C19 connectors, making them versatile for different equipment setups.

Fail-Safe Operation

In the event of a failure in the primary power source, the ATS PDU seamlessly transfers the load to the secondary source without any noticeable interruption to the connected devices. This is crucial for mission-critical applications where downtime is not acceptable.

Recommended Automatic Transfer Switch PDU by YOSUN

Type of automatic transfer switch (ATS)

Open Transition

Suitable for systems that can tolerate brief interruptions during the switch. This type is often less expensive and simpler.

Soft Loading

Provides dynamic flexibility by adjusting the load based on demand, useful in varying operational scenarios.

Closed Transition

Ideal for critical applications where power interruptions cannot be tolerated, allowing both power sources to connect simultaneously before switching.

Bypass Isolation

Allows maintenance without interrupting power, essential for critical systems like hospitals and data centers.

Why choose YOSUN ATS pdu

20 years of design and production experience

Take a look at our dynamic, professional team. YOSUN engineers, designers, and account representatives have 20 years experience, so you can count on our ability to deliver top-notch service.

Excelencia certificada

Control de calidad estrictamente conforme a ISO9001. La calidad siempre ha sido primordial en YOSUN. Nuestras PDU han obtenido las certificaciones GS, CE, VDE, ULBS, CB, ROHS,CCC, asegurando a los clientes que los productos que reciben son seguros, fiables y de la más alta calidad.

Custom PDU Solutions Designed for You

At the heart of YOSUN business is our genuine care for each customer’s unique requirements. Every project is approached with meticulous attention to detail, and OEM/ODM PDU solutions are developed to ensure the best possible results.

Switched PDU vs ATS PDU

Functionality

– Switched PDU: Allows for remote control of individual outlets, enabling administrators to turn on, off, or reboot devices without physical access. This feature is particularly useful for troubleshooting and energy management. Switched PDUs also support advanced functionalities such as outlet lockout and staged power-up sequencing to prevent overloads during power restoration.
– ATS PDU: Automatically switches power between a primary and a backup source when it detects a failure in the primary source. This ensures uninterrupted power supply to connected devices, making it ideal for environments that require high availability. ATS PDUs are particularly beneficial for single-corded devices that lack redundant power supplies, allowing them to utilize dual power sources effectively.

Use Cases

– Switched PDU: Best suited for environments where remote management of power is necessary, such as branch offices or data centers with limited on-site IT staff. It helps reduce operational costs by minimizing the need for physical visits to reset or manage devices.
– ATS PDU: Primarily used in critical applications where maintaining continuous power is essential. It is commonly implemented in data centers to provide redundancy for single-corded devices, ensuring they remain operational during power outages.

Power Management Features

– Switched PDU: Offers features like individual outlet monitoring, programmable outlet control, and real-time power usage data. This allows for detailed energy management and optimization of power consumption across devices.
– ATS PDU: Focuses on seamless transition between power sources without interrupting service. It can be configured for open or closed transition modes, depending on the need for zero downtime during the switch.

Automatic transfer switches enhance redundant power systems

Automatic Transfer Switches (ATS) play a crucial role in enhancing the reliability and redundancy of power systems. By automatically switching between primary and backup power sources, ATS ensure continuous power supply and minimize downtime in case of a failure in the main power source. Here’s how ATS improve redundant power systems:

Seamless Failover

When the primary power source fails, an ATS instantly detects the outage and switches the load to the backup power source, such as a generator or UPS. This transfer happens within milliseconds, ensuring minimal to no interruption in power supply. The ATS continuously monitors the primary source and automatically transfers the load back when power is restored.

Increased Reliability

By eliminating the need for manual intervention during a power failure, ATS significantly improve the reliability of the power infrastructure. The automatic switching capabilities ensure that critical systems and equipment always have access to a stable power source, preventing costly downtime and data loss.

Flexible Configuration

ATS can be configured to work with various power sources, including utility power, generators, and UPS systems. This flexibility allows for the creation of redundant power architectures tailored to specific requirements. ATS can also be designed for open transition (break-before-make) or closed transition (make-before-break) switching, depending on the application’s needs.

Scalability

ATS are available in a range of sizes and configurations to accommodate different power requirements. As power needs grow, additional ATS can be easily integrated into the system to maintain redundancy and ensure sufficient capacity.

Intelligent Monitoring

Advanced ATS feature built-in intelligence that continuously monitors the voltage, frequency, and stability of the power sources. This monitoring capability allows the ATS to make informed decisions about when to initiate a transfer and helps prevent unnecessary switching during minor power fluctuations.

How does the auto transfer switch function in PDUs

Power Source Monitoring: The ATS continuously monitors the status of both primary and secondary power sources. If the primary source fails or drops below a certain threshold, the ATS automatically activates the secondary source to maintain power supply.

Seamless Transition: When a failure is detected, the ATS initiates a transfer process that typically occurs within milliseconds. This quick response minimizes downtime and ensures that connected equipment remains powered without interruption.

Types of Transfer Mechanisms:
– Open Transition: This method involves briefly disconnecting the load from the primary source before connecting it to the secondary source. This can result in a momentary loss of power but is simpler and less expensive.
– Closed Transition: In this method, both power sources are connected simultaneously during the transfer, allowing for a smoother transition without any interruption in power supply. This type is more complex and costly but is ideal for critical applications where even short outages are unacceptable.

User Control and Configuration: Many ATS PDUs allow users to designate which power source is primary and which is secondary, providing flexibility for maintenance and operational needs. Some models also include features for remote monitoring and management.

Application in Redundant Power Systems: ATS PDUs are particularly useful for single-corded devices that require redundant power feeds, as they enable these devices to benefit from dual power sources without needing dual power supplies.

By integrating an ATS within a PDU, organizations can significantly enhance their resilience against power interruptions, making them essential components in data centers and other critical infrastructure environments.

Best Practices for Installing an ATS PDU

1. Site Preparation
Location Selection: Choose a suitable location for the ATS PDU that is easily accessible for maintenance and monitoring. Ensure it is in a dry, cool environment to prevent overheating.
Rack Compatibility: Verify that the ATS PDU is compatible with your existing rack system. Ensure it fits within the designated space (1U or 2U) and can be securely mounted.
2. Electrical Considerations
Power Source Evaluation: Ensure that the ATS PDU is connected to two separate power sources, such as two UPS systems or utility feeds, for redundancy. Each source should be properly grounded and compliant with local electrical codes.
Voltage Matching: Confirm that the input voltage of the ATS PDU matches the voltage of your connected equipment (e.g., 120V, 208V, or 230V) to avoid electrical hazards.
3. Installation Steps
Mounting: Use the provided mounting brackets and screws to securely attach the ATS PDU to the rack. Follow the manufacturer’s guidelines for mounting orientation (horizontal or vertical) based on your space requirements.
Cable Management: Utilize cable ties and retention trays to organize power cables neatly. This helps prevent tangling and ensures proper airflow around the unit.
Connection: Plug the ATS PDU into the primary and secondary power sources, ensuring that connections are tight and secure. Avoid exceeding the maximum current load specified by the manufacturer.
4. Configuration and Testing
Initial Configuration: Configure any necessary settings on the ATS PDU, such as IP address for network management if applicable. Follow specific instructions in the user manual for configuration details.
Testing Functionality: Conduct tests to verify that the ATS PDU correctly switches between power sources during simulated outages. This involves disconnecting the primary source and observing if the load transfers seamlessly to the backup source.

5. Monitoring and Maintenance
Regular Monitoring: Use any built-in monitoring features to keep track of load levels, voltage, and performance metrics. This helps in identifying potential issues before they cause failures.
Scheduled Maintenance: Establish a routine maintenance schedule that includes visual inspections, cleaning, and testing of both power sources connected to the ATS PDU.