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1) Altitude should not be over 1,000m;
2) Ambient temperature: -5~40°C;
3) Average temperature in 24 hour not exceed 35°C;
4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%;
5) Pollution degree: class 3
Main models and technical parameters
Rated voltage: 7.2 kv
Control voltage: 380/220/110
Rated current: 160A, 250A, 400A, 630A, 800A, 1000A
Clearance: 3.5±0.3 mm
Over travel: 2±0.2 mm
Pressure: >85N
Main circuit power frequency withstand voltage: 32000 v
Auxiliary circuit power frequency withstand voltage: 2500 v
Control circuit power frequency withstand voltage: 2000 v
Making capacity: 10Ie,100 times
Breaking capacity: 8Ie,25 times
Limit opening current(A): 10Ie
Overload: 8Ie,10 s
Mechanism life: 1 million times
Weight: 25.5 KG
Note: “Ie” represents the rated current of main circuit