| Resistance at
25℃(Rn) |
Operating temperature range:25±2℃，within the allowable tolerance. |
Non-operating
characteristic |
Operating temperature range:40±2℃,In static air for 30mi-nutes.Max.Voltage:60Vdc.Non-trip current energized time:60min. △R/Rn≤50% |
Overcurrent operating
characteristic |
Operating temperature range:25±2℃. Voltage of power supply: 220Vrms.Test the time for the current decrease to limited value. |
Overvoltage
withstanding |
Voltage of power supply: 265Vrms.Initial current: 3A.Energized time: 30min.After 4 hours in room temperature, test Rn. △R/Rn＜20%. |
Overcurrent
withstanding |
Voltage of power supply: 220Vrms.Initial current: 3A.ON 60s,OFF 600S Cycle:30 times. After 4 hours in room temperature, test Rn. △R/Rn＜20%. |
Surge current
withstanding |
Current waves:10/1000S Min.Opening circuit voltage:1.0KV.Peak current：25A.Interval: 3min.Cycle: 30 times. After 4 hours in room temperature, test Rn. △R/Rn＜20%. |
Induction voltage
withstanding
|
(Only for max.voltage more than 600V) Voltage of power supply: 650Vrms.Initial current: 1.1A.ON 2s,OFF 60S Cycle:10 times. After 4 hours in room temperature, test Rn. △R/Rn＜20%. |
| Fail model |
Ⅰ：Voltage of power supply: 250Vrms.Initial current: 10 A.；Ⅱ：Voltage of power supply: 600Vrms.Initial current: 15A.；Ⅲ：Voltage of power supply: 650Vrms.Initial current: 10A.；Energized time: 30min. high resistance or open circuit is allowable, low resistance or firing is not allowed. |
| Restore time |
The necessary time of the resistance return to twice of Rn ＜60S。 |
