Features [Automatic Power Transfer] Easily switch between power sources with this ATS switch. Ensure continuous power supply without interruptions. Also supports manual operation. [Quick Switching Time] The automatic transfer switch ensures a switching time of ≤2 seconds, allowing for seamless and efficient power transfer when needed. [Enhanced Safety] Supports multiple protection functions, including short circuit, overload, phase loss, and undervoltage protection, this transfer switch ensures reliable operation. [Reliable Materials] Made with flame retardant PC and silver contacts, this switch offers excellent durability and conductivity, greatly improving performance and service life. [Simple Installation] The ATS has a compact structure, can be installed vertically or horizontally. Suitable for hospitals, shops, banks, high rise buildings, etc. Specification: Item Type: Automatic Transfer Switch Material: Flame Retardant PC, Silver Model: NLQ1 63 2P Poles: 2P Insulation Voltage: 4000V Rated Voltage: 230V ATS Type: CB Miniature Breaker Type Switching Time: ≤2s Frequency: 50 60Hz Rated Impulse Withstand Voltage: 4 (KV) Installation Method: Screw Fixing How to Use: Regardless of whether the main and backup power supplies have voltage, they can be operated manually. When operating manually, place the manual auto button in the manual position. When pushing the handle clockwise to the end, the backup power supply circuit breaker QR will open, and the main power supply circuit breaker QN will close. When pushing the handle counterclockwise to the end, the backup power supply circuit breaker QR will close, and the main power supply circuit breaker QN will open. On the panel, the power indicator light (yellow) indicates the working power of the automatic control box. If the light is not on, it means that there is a power failure in the automatic control box and the switch cannot be operated. After the power is recovered, place the manual auto button in the auto position. packing list: 1 x Automatic Transfer Switch 1 x Instruction Manual Package List 1 x Automatic Transfer Switch 1 x Instruction Manual