Are you looking for the best static transfer switch factories in China to ensure uninterrupted power supply for your critical applications? Here’s a guide to help you navigate the top manufacturers, highlighting their key features, certifications, and the advantages they offer. From robust construction to advanced technologies, we’ll compare the leading static transfer switch factories to make your decision easier. Let’s dive in and find the perfect fit for your needs.

Static Transfer Switch (STS)

China STS Static Transfer Switch

Product Details: The STS Static Transfer Switches offered by Siny Energy include various models such as the 60KW STS Static Transfer Switch for grid-connected and off-grid applications, the 400V STS Static Transfer Switch with 50Hz and 60Hz options and forced air cooling, and the RS485 CAN STS Static Transfer Switch with a noise level of 45dB. These switches are designed for automatic transfer between two independent AC power sources. Prices range from 2,000 to 24,000 USD, with a minimum order quantity of 1.

Pros:
– Automatic transfer between two independent AC powe…
– Suitable for both grid-connected and off-grid appl…
– Various voltage and frequency options (e.g., 400V,…
– Forced air cooling for enhanced reliability
– Low noise level (e.g., 45dB)

Cons:
– Higher cost compared to some other power switching…
– Potential for component failure, such as fans in f…
– Complex installation and maintenance may be requir…

Static transfer switch-static transfer switch wholesale price …

Product Details: The Bwitt power supply STS static transfer switch is a product manufactured by Bwitt, a company specializing in static transfer switches. These switches are designed to automatically transfer power from one source to another in the event of a failure or other disruption. Key features include high reliability, fast transfer times, and the ability to handle various types of power sources. The switches are often used in critical applications such as data centers, hospitals, and other facilities requiring uninterrupted power supply.

Pros:
– High reliability and fast transfer times
– Ability to handle various types of power sources
– Suitable for critical applications such as data ce…

Cons:
– No specific cons mentioned on the website
– Potential complexity in installation and maintenan…

One of Hottest for China Automatic Static Transfer Switch Main …

Static Transfer Switches | Legrand Data Center Solutions

Product Details: The Static Transfer Switch (STS) by Legrand Data Center Solutions is designed to smoothly transfer power between two input lines using Silicon Controlled Rectifiers (SCRs). This ensures seamless load transfer in dual-path power systems, which is crucial for maintaining operational reliability in data centers. The STS securely switches between independent AC power paths to minimize downtime and ensure continuous operation of mission-critical systems.

Pros:
– Ensures seamless load transfer between two input l…
– Maintains operational reliability and minimizes do…
– Crucial for data centers to ensure continuous oper…

Cons:
– No specific cons mentioned in the provided source
– May require specialized installation and maintenan…

ACB-3000 (DC/AC Static Transfer Switch)

China Automatic Static Transfer Switch Manufacturers and …

Product Details: The Automatic Static Transfer Switch (ASTS) is a device used to automatically transfer load from one power source to another in the event of a failure or disturbance. It is available in various designs and styles, including models with ratings from 16A to 100A and higher voltage options like 12kV and 132kV. These switches are widely used in distribution systems, architectural, electrical power, and petrochemical industries. They can be customized to meet specific client needs and are made with finest materials.

Pros:
– Provides automatic and rapid transfer between powe…
– Available in a wide range of designs and styles to…
– Customized designs are available to meet specific…
– Made with high-quality materials to ensure reliabi…
– Widely recognized and trusted by users globally.

Cons:
– Higher voltage models may require specialized inst…
– Custom designs may incur additional costs and lead…
– Complexity of the device may require trained perso…

60KW STS Static Transfer Switch Grid Connected Off …

Product Details: The 60KW STS Static Transfer Switch is designed for grid-connected and off-grid applications. It operates at 50Hz or 60Hz and features forced air cooling. The switch can transfer critical loads between two independent AC power sources without interruption, with a transfer time of less than 20 milliseconds. It includes RS485 and CAN communication interfaces and is suitable for applications requiring seamless switching between power sources.

Pros:
– Fast transfer time of less than 20 milliseconds
– Intelligent switching with RS485 and CAN communica…
– Suitable for grid-connected and off-grid applicati…
– Forced air cooling for reliable operation
– Seamless switching to ensure uninterrupted power s…

Cons:
– Higher cost, with prices ranging from 2,000 to 4,0…
– Potential for component failure, such as fans in f…
– Requires proper maintenance to ensure optimal perf…

Static Transfer Switches

Product Details: The Liebert STS2 static transfer switch from Vertiv provides automatic, seamless transfer between a critical load and the outputs of two independent UPS systems in a dual-bus power configuration. It is designed for maximum availability applications and can transfer loads to an alternate UPS if the primary UPS fails. The switch is available in various amp ratings (100A to 1850A) and supports multiple input voltages (208, 220, 240, 280, 400, 415, 480, 575, 600 VAC) in both 60Hz and 50Hz. It combines fast switching, power isolation, monitoring, and grounding into a single package.

Pros:
– Provides automatic and seamless transfer between t…
– Available in a range of amp ratings and input volt…
– Combines power distribution, automatic switching,…
– Offers added redundancy for both single and dual c…
– Space-saving design and multiple models to fit var…

Cons:
– Requires consultation with local sales office for…
– Limited to a one-year limited warranty against def…
– Safety procedures must be strictly followed when w…

STS Static Transfer Switch

Product Details: The STS Static Transfer Switch is available in various power ratings including 200kW, 300kW, 400kW, 500kW, and 600kW. It is part of a hybrid solar inverter power conversion system designed for home and commercial use. The system includes a hybrid solar inverter, AC/DC and DC/AC converters, and a bidirectional inverter, providing a comprehensive energy storage solution.

Pros:
– High power ratings to support large-scale energy n…
– Integrated with hybrid solar inverter for renewabl…
– Includes bidirectional inverter for efficient ener…
– Part of a comprehensive power conversion system

Cons:
– High power ratings may be unnecessary for smaller…
– Complex system may require specialized installatio…
– Higher cost due to advanced technology and high po…

Comparison Table

Frequently Asked Questions (FAQs)

What is a Static Transfer Switch (STS) and how does it work?

A Static Transfer Switch (STS) is a device that automatically switches power supply from one source to another in case of a power failure, voltage sag, or other electrical anomalies. It monitors two independent power sources, such as a main supply and a backup generator or UPS, and switches to the backup source in milliseconds to ensure continuous power to critical equipment.

Where are STS devices commonly used?

You’ll often find STS devices in critical infrastructure like data centers, hospitals, manufacturing facilities, and telecommunications. They are essential in environments where power interruptions can lead to costly downtime or data loss. These switches are also used in power plants, financial institutions, airports, and other mission-critical applications.

What are the key features of STS devices from Chinese manufacturers?

STS devices from Chinese manufacturers typically include intelligent monitoring and diagnostics, priority source selection, and fast transfer times (usually less than 6 milliseconds). They also feature break-before-make switching, protection mechanisms to ensure uninterrupted power supply, and sometimes manual bypass options for maintenance. Additionally, they often come with LED or LCD displays for status monitoring and may support remote control and telemetry functions.

How reliable are STS devices, and what measures improve their reliability?

STS devices are designed to be highly reliable, with components like Silicon Controlled Rectifiers (SCRs) and redundant power supplies to minimize failures. To improve reliability, manufacturers often use internal redundancy, criss-cross connections in the power supply, and hot-swappable modules. These measures help reduce the Mean Time To Repair (MTTR) and ensure that the system remains operational even if a component fails.

What are the typical specifications and operating conditions for STS devices?

STS devices come in various configurations, including single-phase and three-phase models with different current ratings (e.g., 25A to 400A). They operate within specific voltage and frequency ranges (e.g., AC 220V±15% or AC 380V±15%, 50/60Hz). The operating temperature range is usually between 0°C to 45°C, with relative humidity up to 99% (non-condensed state), and they are designed to be installed in environments with minimal vibration and impact.