RCQ3 Dual Power Offers Intelligent Switching Between Hybrid & Off Grid Solar Systems

Reliable Power Handover for Modern Solar Installations

As more solar projects move toward hybrid and off‑grid configurations, managing multiple power sources reliably becomes essential. RSCN Electric RCQ3 series dual power automatic transfer switch (ATS)provides a practical, mechatronic solution to automatically Switch between main and backup power – making it a perfect fit for solar PV systems that combine panels, battery storage, the grid, or a backup generator.

Built for Hybrid & Off‑Grid Scenarios

In a hybrid solar system, the RCQ3 monitors the main power source (e.g., solar+battery or grid). When the main source fails, it instantly transfers to an alternative source (grid or generator) – and automatically returns once the main source is restored. For off‑grid applications, it reliably rotates between PV arrays, battery banks, and diesel generators, keeping critical loads running without manual intervention.

Practical Features without Complexity

The basic type includes single‑phase (Phase A) voltage monitoring, auto transfer with auto recovery, a 5‑second signal delay to prevent false switching, and remote “0” stop control. Users can choose between auto, remote, or manual operation with a one‑touch button.

Designed for tough environments, the RCQ3 works across wide temperature and humidity ranges, and fits vertically inside control or distribution Cabinets. It supports rated currents from 100A up to 630A, covering residential to industrial solar installations.

Wide Range of Solar Applications

• Off‑grid homes and villages – automatic switch between solar/battery and generator.

• Hybrid commercial rooftops – seamless grid outage backup with auto return to solar.

• Remote telecom or military facilities – uninterrupted power for critical equipment.

• Highways, airports, and industrial lines where power continuity is mandatory.

Controller Options

While the basic model handles core ATS functions, a fire linkage variant adds passive fire linkage input, feedback signal output, and generator start capability – especially useful for hybrid systems that include a standby genset.

Conclusion

The RCQ3 dual power ATS brings reliable, automatic source switching to solar PV projects – without overcomplicating the design. For hybrid and off‑grid systems, it offers a proven, cost‑effective way to keep the lights on, no matter which source is available.