Electrical Power & Protection


Changeover switch between two power supplies

January 2025 Electrical Power & Protection


Schneider Electric South Africa has unveiled the Resi9 Changeover Switch product range which provides the perfect solution to switch manually between two power supplies or circuits. Senior manager, John Raptakis says that the product is designed for changeover from grid supply to generator or photovoltaic system, primarily to address issues related to loadshedding. “The key purpose of the Resi9 Changeover Switch is to provide a solution for low-voltage distribution systems that require a continuous power supply. The changeover switch facilitates this by allowing users to switch between different power sources,” he explains. “This is the first time Schneider Electric is offering a changeover switch in this compact size. The product is designed to be rail-mounted and fit directly into distribution boards.”

The Resi9 Changeover switch is available in a 40 A and a 63 A version, with three variants available in the local market – two-pole 40 A, two-pole 63 A and four-pole 63 A models. The majority of applications will likely use the 40 A version due to its compact design.

“The Resi9 Changeover Switch is easy to operate and easy to install. It can simply be clipped into the distribution board and is held in place by pin springs on both the line side and load side. This prevents the unit from being dislodged when operating the on/off switch,” says Raptakis.

The key features of the product are:

• Compact design, easy to operate and install.

• Suitable for industrial and commercial applications.

• Available in 40 A and 63 A single-phase versions.

• Complies with IEC 60947-3 standards for safety.

• Includes a three-position handle to indicate grid, generator or off-position.

• Includes a QR code for easy access to technical documentation.

“The product has found a place in the market due to the need for solutions during loadshedding. The manual changeover switch allows users to isolate one supply (grid, generator or photovoltaic) from the other, enabling them to work on a specific supply,” says Raptakis.

He notes that the two-pole Resi9 Changeover Switch is designed for single-phase installations, while the four-pole version is suited to three-phase installations. The four-pole product is available in a 63 A rating only, as most three-phase installations in South Africa are greater than 40 A.

“The product also has a QR code that can be scanned to access the technical documentation. This allows easy access to the installation instructions and diagrams without the printed catalogue,” Raptakis concludes.


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