Automatic reclosing leakage protector has all the functions of existing air switch (circuit breaker), leakage protector and over-and under-voltage release, and also has full intelligent powerprotection mechanism. The protector integrates intelligent control functions such as (surge)lightning-protection, overcurrent/short circuit-protection, leakage-protection, undervoltage/voltage loss-protection, overvoltage-protection, remote communication, fault memory, grid monitoring and display, detection before dosing, automatic reclosing device, etc. It is characterized by intelligence, safety, stability and long service life. It is widely used in powersupply protections of public unattended facilities such as communication, , security, transportation, etc, which not only reduces manual maintenance costs but also improves efficiency, and is widely favored by customers.
Features:
1.Overcurrent/shortcircuit-protection: When the current is more than 1.15 times the rated current and lasts for more than 2 seconds, or it is more than 3 times the rated current (equivalent to short circuit), the protector will be disconnected immediately.
2. Leakage-protection: When 15-30mA leakage occurs in the line, the protector will be disconnected within 0.1 second, (leakage inactive current: 15mA, leakage active current: 30mA)
3. Undervoltage/Loss of Voltage-Protection: When the powersupply voltage is lower than 160 V±5 V, the protector is disconnected, and after the voltage rises to normal (>170 V), the protector automatically switches on and energizes; When the powersupply network loses voltage and , the protector disconnects the input and output, and the protector automatically switches on and turns on after the powersupply of the network resumes normally for 2 seconds.
4.0vervoltage-protection: When the powersupply voltage is higher than 280 V t5 V, the protector is disconnected, and after the voltage drops back to normal (
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