Feature 1 Stable Controller: Has the function of simulating mains power, and can flexibly select the starting conditions of the unit, very useful. 2 Better in Display: Equipped with 4 bit LED digital tube, it can display the voltage and frequency of mains power and power generation. 3 Smart for Setting: All parameters can be set through the panel keys, and the ATS controller supports both manual and automatic operation. 4 Modular Structure: All connections are completed through EU standard terminal block thanks to the modular design, very easy to install. 5 Waterproof Design: Standard waterproof ring, the protective performance of the panel after installation gets to IP54, ideal for outdoor.Item Type: Automatic Transfer Switch ControllerModel: ATS220Material: ABSFunction: For power switching control. Display: LEDPower Generation and Mains Voltage: 30-300VNormal Mains Power Delay: 0-6500s, Default Value: 10s. Abnormal Mains Power Delay: 0-6500s, Default Value: 5s. Normal Power Generation Delay: 0-6500s, Default Value: 10s. Start Up Delay Of Generator Set: 0-6500s, Default Value: 1s. Shutdown Delay Of Generator Set: 0-6500s, Default Value: 5s. Closing and Opening Pulse Width: 1.0-10.0s, Default Value: 10.0s. Conversion Interval Delay: 0-3600.0s, Default Value: 1.0s. Overconversion Delay: 0-20s, Default Value: 20s. Low Voltage Tripping Value of Mains Supply: 55-330V, Default Value: 184V. Low Voltage Return Value of Mains Power: 55-330V, Default Value: 207V. Mains High Voltage Tripping Value: 55-330V, Default Value: 276V. High Voltage Return Value of Mains Power: 55-330V, Default Value: 253V. Generator Over Frequency Alarm Value: 40-80.0Hz, Default Value: 57.0Hz. Generator Underfrequency Alarm Value: 0-70.0Hz, Default Value: 40.0Hz. Generator Overvoltage Alarm Value: 0-360V, Default Value: 264V. Generator Undervoltage Alarm Value: 0-360V, Default Value: 192V. Enabled Closing Status Input: 0 - DisableMains Voltage Indication: The indication is currently displayed as mains voltage E. When the load is switched to mains voltage, the mains voltage will be automatically displayed. Mains Frequency Indication: The indication is the current displayed parameter value is mains frequency. Generation Voltage Indication: The indication is currently displayed as generation voltage. When the negative line is switched to generation, the generation voltage will be automatically displayed.Generation Frequency Indication: The indication is the current displayed parameter value is the generation frequency. Mains Power Status Indication: It is always on when the mains power is normal, flashes when the low voltage and high voltage alarms are given, and goes out when there is no mains power. Indication of Mains Closing: It will be on when mains closing is effective. Power Generation Status Indication: It is always on when power generation is normal, flashes when low voltage and high voltage alarm, and goes out when there is no mains power. Power Generation Closing Indication: Lighting up when power generation closing is effective. Automatic Mode Indication: Lighting up when working in automatic mode and turns off when working in manual mode. Package List1 x Automatic Transfer Switch Controller2 x Wire Terminal2 x Fixing Screw1 x User Manual