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Manual Transfer Switch
Product Series
Product Series
Manual Transfer Switch

Manual Transfer Switch

Visible Safety

A clear visual break point allows you to confirm the circuit is fully isolated, ensuring absolute safety for all maintenance work.

Exceptional Reliability

Carefully selected materials and manufacturing processes ensure the product works steadily even in harsh environments.

Effortless Control

Intuitive manual operation means you can quickly and accurately switch it without complex training.

Flexible Integration

Designed for versatile installation, perfectly suited for indoor distribution cabinets and outdoor substations.

Manufacturing Excellence: GRL, The Reliable Guardian of Your Power

At GRL, we place reliability and safety above all else in the manufacturing of our disconnectors. We use expert craftsmanship and strict quality control to ensure every product provides solid protection when it matters most.

 

Precision Engineering, Superior Mechanical Performance:

Every component of a GRL disconnector is precisely machined and assembled to ensure smooth, accurate, and reliable switching. Our unique mechanical interlocking design fundamentally eliminates the possibility of human error, providing multiple layers of protection for your equipment and personnel.

 

Rigorous Material Selection for Challenging Environments:

We only use high-quality insulating materials and conductive copper parts. These materials not only have excellent electrical properties but also effectively resist harsh conditions like high temperatures, humidity, and corrosion. The stable operation of GRL disconnectors is a solid foundation for your power system’s efficient and continuous performance.

 

Comprehensive Quality Control:

From the moment raw materials arrive to the final product shipment, we maintain a complete quality management system. Every single disconnector must pass strict electrical performance tests, mechanical life-cycle tests, and high-voltage withstand tests. This ensures our products meet or exceed industry standards, providing you with trustworthy and reliable protection.

GRL Safe Electricity Use Fast Connection
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An automatic transfer switch (ATS) is a device that automatically transfers a power supply from its primary source to a backup source when it senses a failure or outage in the primary source.

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There are two types of automatic transfer switches, circuit breaker and contactor. The circuit breaker type has two interlocked circuit breakers, so only one breaker can be closed any anytime. The contactor type is simpler design that is electrically operated and mechanically held.

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Transfer switches prevent the utility power and the generator from powering your household circuits at the same time. The result is called back feeding. When this happens, the results can be very dangerous and can include fires, serious injury, or even death.

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Modern automatic transfer switches (ATSs) contain sensitive components that are highly susceptible to damage caused by transient voltage. Voltage monitoring control boards and control power supplies commonly fail due to damage caused by transient voltage. These failure modes result in ATS inoperability.

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A transfer switch is required by the NEC for any connection of power to a home. Truly, using an ATS is the only safe way to directly connect a generator to your home. An automatic transfer switch isolates your home from the power lines.

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