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    Protection Mode: L/N-PE , Maximum Continuous Operating Voltage : 385V at 50/60Hz, Nominal Discharge Current : 20kA, Maximum Discharge Current Imax: 40kA, Voltage Protection Level : 1.8 kV , IP20, Remote Signaling Function.

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    The ASPD40-220 consists of two varistor-based power supply modules and one base, each designed for the second-level protection of L/N-PE. These modules feature functions like anti-reverse insertion and anti-misinsertion. The surge protector includes overheat protection, failure indication, and a centralized remote alarm dry contact, allowing remote monitoring of module installation reliability and module operational status.