This TO219G Manual Transfer Switch is a robust 63A 400V dual power circuit breaker designed for reliable electrical system control. The 2-pole interlock mechanism provides seamless switching between two power sources while preventing simultaneous connection. Operating at 50/60Hz, this compact mini-style transfer switch features clear terminal markings (1-8) for straightforward installation. The switch includes a manual operation lever for direct control and meets CE standards for safety and performance. With its 400V rating, it's suitable for both residential and light commercial applications where dual power source management is required. The durable white housing and secure mounting design ensure long-term stability in electrical panels. This transfer switch serves as a critical component for backup power systems, allowing controlled switching between main and alternate power sources while maintaining circuit protection functionality.