Feature Highlights: 1. Dual-Power Automatic Switching – Automatically switches between normal power and backup power. Please note: this switch does not turn the generator on or off. 2. Normal Power Priority – The switch defaults to normal power when it’s available. If normal power goes off and backup power is on, it will switch to backup power automatically. 3. Auto/Manual Mode – In Auto mode, it switches between power sources automatically. In Manual mode, you control the switch direction yourself. 4. Reliable Performance – Made from high-quality ABS material with a white finish, built to last. Complies with IEC60947-6-1 and GB/T14048.11 standards. 5. Easy Installation – Compact size (150138111mm), terminal-type design, suitable for 3-phase 4-wire or single-phase systems, rated up to 63A, 400V/230V, 50/60Hz. Product Details: This dual-power automatic transfer switch ensures uninterrupted power supply by automatically shifting loads from the main power to the backup source when a fault is detected (such as voltage loss or phase loss on the normal phase). It monitors Phase A voltage on both normal and reserve lines. Switching between power sources may cause a brief interruption in power. Ideal for home or small commercial use, it provides a reliable solution for backup power management. Specifications: - Color: White - Material: ABS - Size: 150 x 138 x 111mm - Standards: IEC60947-6-1, GB/T14048.11 - Rated Voltage: 400V/230V AC - Rated Current: Up to 63A - Frequency: 50/60Hz - Suitable for: 3-phase 4-wire or 1-phase systems Package Includes: 5 x Dual Power Automatic Transfer Switch Only the items listed above are included. Note: Slight color differences may occur due to lighting and screen settings. Size tolerance is +/- 1-3cm.