The "AU" setting indicates the device is in its default automatic reset mode, meaning it will attempt to restore power on its own once the line voltage returns to your defined safe range. Where to Find the Manual
is an adjustable, self-resetting protector designed for single-phase AC 230V systems. It safeguards electrical equipment from over-voltage, under-voltage, and over-current conditions by cutting power instantaneously and reconnecting once the circuit stabilizes. Rated Voltage: AC 230V, 50/60Hz Rated Current Options: 40A, 63A, or 80A models Installation: Standard 35mm DIN rail mounting Power Consumption: ≤ 2W Parameter Settings (Default & Ranges) Adjustment Range Default Setting Over-Voltage Protection 221V – 300V (or OFF) Over-Voltage Recovery 220V – 299V Under-Voltage Protection 150V – 219V (or OFF) Under-Voltage Recovery 151V – 220V Over-Current Protection 1A – (Max Rated Current) Max (e.g., 63A) Recovery Delay Time 2s – 512s Power-on Delay Time 2s – 255s Operational Guide Sinotimer Svp-916 Manual Pdf
The PDF includes a handy flowchart for this—much clearer than memorizing icons. The "AU" setting indicates the device is in