Home > Producst > Automatic Transfer Switch       Rated operating voltage : 220VAC Frequency : 50 / 60Hz Contacts capacity for ATS control : AC250V, 10A (No-load contacts) Contacts capacity for Abnormal power source : AC250V, 10A (No-load contacts)   Automatic or manual ATS control Indicating lights for A-power (Utility), B-power (Emergency) and ATS transfer status  - Power source : A-power (Green LED), B-power (Red LED) (Displayed when voltage is above 85%)  - Transfer status : A-power (Green LED), B-power (Red LED) Manual operation buttons  - For A-power(Utility) : Green - For B-power(Emergency) : Red - Note : Built-in LED is on for selective button Setting for automatic transfer time  - Time setting at rear side to avoid unnecessary setting change  - Variable time settings (0~30sec) While timer is working, indicating lamp for transferable ATS is flickering Detection for open phase of Utility power source (For 3 4W, 220/380VAC only) Detecting the power failure, low voltage and abnormal condition of Utility source, the ACD sends the engine starting signal to the Generator.   On & Off of In-Phase Monitor can be selected by selection switch  - When In-Phase Monitor is selected, Transfer is made manually or automatically when synchronized.  - When In-phase Monitor is not selected, synchronizing indication lamp is not on. When synchronized, Yellow LED is flickered. When synchronized more than 3 cycles, Tranfer will be made. Under the manual mode, when the selection button is selected for Utility or Generator, Built in LED will be flickering until synchronized.   ACD21 (ATS control device) : Basic Function ACSD (ATS control synchronizing device) : Built-in In-phase Monitor