<p>.</p> <p>Fine workmanship and perfect style.</p> <p>Technical Parameters: </p> <p>Rated power supply voltage: AC220V</p> <p>Working voltage range: AC80~400V (single phase)</p> <p>Working frequency: 50\/60Hz</p> <p>Overcurrent setting range: 1~63A</p> <p>Overvoltage setting range: 230~300V</p> <p>Undervoltage setting range: 80~210V</p> <p>Error margin: 2%</p> <p>Protection action delay: 0.5s</p> <p>Reset\/start delay: 1s~600s</p> <p>Measurement accuracy: 1% (not to exceed 1% of total range)</p> <p>Insulation voltage: 400V</p> <p>Output contact: 1NO</p> <p>Contact electrical life: 10\u2075</p> <p>Contact mechanical life: 10\u2076</p> <p>Protection level: IP20</p> <p>Pollution level: 3</p> <p>Altitude: \u22642000m</p> <p>Operating temperature: -50\u00B0C~55\u00B0C</p> <p>Humidity: \u226450%at40\u00B0C</p> <p>Working temperature: -30\u00B0C~70\u00B0C</p> <p>Tips: The product may be updated constantly, Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use</p> <p>Material: plastic</p> <p>colour: White</p> <p>Package Contents: </p> <p>1 x Under Voltage Protective Device</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>