1. Short circuit protection: automatic reclosing leakage protection when current is greater than 3 times the rated current, automatic reclosing leakage protection within 0.1 seconds off, to ensure the safety of the equipment. 2. Leakage Protection: Line 15 ~ 30mA leakage occurs, the automatic reclosing leakage protection disconnect within 0.1 seconds. (No leakage current: 15mA, leakage current:. 30mA) 3. Overcurrent / overload protection: current is greater than 1.15 times the rated current, the automatic reclosing duration and magnitude of this current leakage protection; If during the duration of more than three seconds, or more than three times the rated current, automatic reclosing leakage protection switch That disconnect implement protection. 4. Overvoltage protection: 280V ± 5V supply voltage is higher than when the automatic reclosing leakage protection switch off. After the voltage drop back to normal, automatic reclosing leakage protection automatically switch on power. 5. Voltage protection: when the supply voltage drops below 150V ± 5V, automatic reclosing leakage protection disconnected. After the voltage rises to normal automatic reclosing leakage protection automatic switch, power in normal operating condition. 6. Before closing detection: automatic reclosing leakage protection before closing the line voltage is detected, when the supply voltage is abnormal over-voltage, over-voltage situation, the blockade and the police closing; failure not exclude, you can not switch on electricity . When troubleshooting, the switch will automatically switch on power. 7. :( Automatic reclosing feature can debug) line leakage occurs instantaneously or instant impact (such as lightning, flash socket, etc.) and can be dangerous, automatic reclosing leakage protection off immediately; after the failure, the case of the security line, automatic reclosing Gate leakage protection will automatically re-closing power. Unlimited number of shots to 8. Hand-off performance: 8.1, when the test button is pressed manually leakage, zero line and disconnect the FireWire accordingly, no output. 60 seconds after the automatic switch, automatic reclosing protection device is operating normally. 8.2, manually turn off the power switch, and disconnect the two relays, no output. Off action in less than 0.1 seconds. Restart switching power supply, two simultaneous outputs.