Product: Mini Dual Power Automatic Transfer Switch (ATS) 3P 100A 110V Description A compact automatic transfer switch designed for household and small commercial dual power systems. The ATS provides fast, reliable transfer between a primary power source and a backup generator or secondary supply to maintain continuous power without interruption. Key benefits Immediate automatic switching: Detects abnormal utility power and switches to backup power quickly to maintain continuity of supply. Reliable contact and conductor materials: Silver contact points and red copper internal parts provide stable conductivity and long contact life. Stable relay control: Precision relay control reduces switching failures and improves operational stability. Compact, PCBlevel design: Small footprint suitable for limited panel space and for installation in micro household power systems. Multiple ratings and voltage support: Available in common ratings including 63A and 100A, and for 110V and 220V systems to match typical single and threephase applications. Technical highlights Configuration: 3pole (3P) for threephase circuits. Rated current example: 100A (also available in 63A options). Rated voltage examples: 110V and 220V models. Construction: Silver contact points, red copper internal parts, and precision relay mechanism. Function: Dual power automatic transfer switch for uninterrupted power control and selector switching between city power and generator or secondary source. Important operating notes Both primary and backup supplies must have a rated voltage within 85 percent to 110 percent of nominal. Operation outside that range can cause coil overheating or coil failure. The load current should not be less than 5A; very low currents can prevent proper coil operation and may cause overheating. If the utility supply is unstable, install appropriate voltage protection devices in the system before the ATS. Typical applications Residential backup systems: Maintain power for essential circuits during utility outages by switching to a standby generator. Small commercial or office equipment: Protect critical devices such as servers, routers, or pointof systems that require continuous power. Remote or standby installations: Manage power switching for pumps, communications equipment, or lighting circuits where automatic transfer is required. Installation and compatibility Designed for straightforward wiring in threephase systems; follow local electrical codes and practices. Confirm model selection for current and voltage rating that matches the application (for example 3P 100A 110V for threephase 100A 110V systems). Use suitable protective devices and surge/voltage protection where supply conditions are unstable. This automatic transfer switch delivers a compact, reliable solution for automatic power source switching with robust contact materials and stable relay control to ensure continuous operation of critical loads.