Description
Description
TOB9L-63WIFI 2P can cut off L and N both,
With leakage protection, NO temperature control.
TOB9-63WIFI 1P Can only cut off L,
NO leakage protection, With temperature control.
Model:
TO319G 3P 230V AC 40A/63A
General
TO319G is a small-sized manual transfer switch (MTS) that enables the equipment to switch between power source A and power source B. It is widely applied in scenarios such as photovoltaic power generation, generator power generation, and peak-valley power switching.
Basic Function
TO319G 3P 400V AC
3P Manual Transfer Switch(MTS)
1.When the handle on the I position:
1 and 2 are connected
5 and 6 are connected.
9 and 10 are connected
2.When the handle on the II position:
1 and 4 are connected
5 and 8 are connected.
9 and 12 are connected
3.When the handle is in the middle position: both groups are disconnected.
The position of the incoming and outgoing wires can be adjusted according to actual needs (the upper and lower out are not necessarily required, when used for dual power switching, the lower in and upper out must be used.)













In the world of industrial and commercial electrical systems, reliability, safety, and efficiency are paramount. The TO319G 3P Three Phase Din Rail Inverter to City Power Changeover Switch is a high-performance electrical component designed to meet the demanding requirements of modern electrical infrastructure. This advanced switch is engineered to provide seamless power transition between inverter and city power sources, ensuring uninterrupted operation in critical applications.
Whether you are managing a manufacturing plant, a data center, or a large-scale commercial facility, the TO319G offers a robust and intelligent solution for power switching and isolation. Its DIN rail mounting design ensures easy installation and integration into existing electrical panels, while its high-voltage rating of up to 690V makes it suitable for a wide range of industrial applications.
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Understanding the Role of a Changeover Switch in Electrical Systems
A changeover switch is a crucial component in electrical systems where dual power sources are used. In many industrial settings, it is common to have a primary power supply from the city grid and a secondary power source such as an inverter or generator. The role of a changeover switch is to automatically or manually switch between these two power sources, ensuring that the system remains powered even in the event of a primary power failure.
The TO319G 3P Three Phase Din Rail Inverter to City Power Changeover Switch is specifically designed for three-phase systems, making it ideal for heavy-duty applications that require balanced power distribution. It ensures that the transition between power sources is smooth and safe, minimizing the risk of electrical faults or equipment damage.
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Key Features of the TO319G Changeover Switch
The TO319G is packed with features that make it a top choice for professionals in the electrical and industrial sectors. Here are some of the standout characteristics:
1. DIN Rail Mounting Design
The DIN rail mounting system is a standard in industrial electrical installations. It allows for quick and secure installation without the need for additional mounting hardware. The TO319G is designed to fit seamlessly into standard DIN rail enclosures, making it easy to integrate into control panels and electrical cabinets.
2. Three-Phase Compatibility
With support for three-phase power systems, the TO319G is suitable for a wide range of industrial applications. Three-phase systems are commonly used in large motors, HVAC systems, and other high-power equipment. The switch ensures balanced power distribution and reliable switching between inverter and city power sources.
3. 690V Isolating Interlock Circuit Breaker
One of the most important safety features of the TO319G is its 690V isolating interlock circuit breaker. This component ensures that the switch can safely disconnect power from the system, providing a high level of protection for both equipment and personnel. The interlock mechanism prevents accidental switching between power sources, reducing the risk of electrical faults and short circuits.
4. Disconnectable Design
The disconnectable feature of the TO319G allows for easy maintenance and inspection. In the event of a system failure or routine maintenance, the switch can be safely disconnected from the power source, ensuring that technicians can work on the system without the risk of electrical shock.
5. High Reliability and Durability
Built to withstand the rigors of industrial environments, the TO319G is constructed from high-quality materials that offer excellent durability and resistance to wear and tear. It is designed to operate reliably under a wide range of environmental conditions, making it suitable for both indoor and outdoor applications.
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Applications of the TO319G Changeover Switch
The TO319G is a versatile component that can be used in a variety of industrial and commercial settings. Some of the most common applications include:
– Industrial Manufacturing Plants: Where continuous operation is essential, the TO319G ensures that power is always available, even during grid outages.
– Data Centers and Server Rooms: These facilities require a constant and stable power supply to prevent data loss and system downtime.
– HVAC Systems: In large commercial buildings, HVAC systems often rely on dual power sources to maintain temperature control and air quality.
– Emergency Lighting and Power Systems: In case of a power failure, the TO319G can switch to an inverter or generator to keep critical lighting and equipment running.
– Power Distribution Units (PDUs): The switch can be integrated into PDUs to manage power flow and ensure redundancy in electrical systems.
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Why Choose the TO319G for Your Electrical System?
When it comes to selecting a changeover switch for your electrical system, the TO319G stands out for several reasons:
– Safety First: With its 690V isolating interlock circuit breaker, the TO319G ensures that your system is protected from electrical faults and short circuits.
– Easy Installation: The DIN rail mounting design allows for quick and hassle-free installation, saving time and labor costs.
– Reliable Performance: Engineered for industrial use, the TO319G delivers consistent and reliable performance, even under heavy load conditions.
– Cost-Effective Solution: By minimizing the risk of power outages and equipment damage, the TO319G helps reduce maintenance and repair costs in the long run.
– Future-Proof Design: The switch is compatible with a wide range of inverter and power systems, making it a flexible and future-ready solution.
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Installation and Maintenance Tips
To ensure optimal performance and longevity of the TO319G, it is important to follow proper installation and maintenance procedures:
– Follow Manufacturer Guidelines: Always refer to the manufacturer’s installation manual to ensure correct wiring and configuration.
– Use Proper Tools: When installing the switch, use insulated tools to prevent accidental electrical contact.
– Regular Inspections: Conduct routine inspections to check for signs of wear, overheating, or loose connections.
– Keep the Environment Clean: Dust and debris can affect the performance of electrical components. Keep the installation area clean and dry.
– Professional Installation Recommended: For complex electrical systems, it is advisable to have the switch installed by a qualified electrician.
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Conclusion
The TO319G 3P Three Phase Din Rail Inverter to City Power Changeover Switch is a high-performance electrical component that offers a reliable and safe solution for power switching in industrial and commercial applications. With its DIN rail mounting design, 690V isolating interlock circuit breaker, and disconnectable feature, it is built to deliver consistent performance and long-term durability.
Whether you are managing a large manufacturing facility or a critical infrastructure system, the TO319G is the ideal choice for ensuring uninterrupted power supply and system protection. Its compatibility with three-phase systems and ease of installation make it a versatile and cost-effective solution for a wide range of applications.
Invest in the TO319G today and experience the peace of mind that comes with a reliable and efficient power switching solution.







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