Dual power switch. PC level, no interrupt. The dual-power automatic transfer switch (ATS) is a specially developed miniature household power transfer switch, mainly used to test whether the main power or reserve power is normal. When the main power supply is abnormal, the reserve power supply starts immediately to ensure continuity, reliability, and safety of the power supply. It is specially designed for household rail installation in PZ30 distribution boxes. The ATS is suitable for emergency power supply systems with AC 50 Hz or 60 Hz and rated voltage 220 V. It features a robust structure, reliable operation, easy installation and maintenance, and long service life. It is widely used in locations where power outages are not permitted. Compatible only with utility grid power and generators — not suitable for photovoltaic (PV) systems or inverters. Type: 63 A / 100 A. Size: 107 x 96 x 76 mm. Material: PC plastic. Color: white + black. Package contents: 1 x Automatic Transfer Switch. Other products are not included. Note: Lighting conditions and display settings may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.