CJ20 series AC contactors are mainly used in the electric power circuit of AC 50/60Hz, rated voltage to 660V(individual grade to 1140V), current to 630A for frequency making and breaking circuit and control AC motor, and it can be formed electromagnetic starter with thermal relay or electronic protector for protecting circuit.
The contactor is suitable for the following rated duty: eight-hour duty, interrupt duty, interrupted period duty, short time duty.
The products comply with IEC 60947-4
Normal working conditions and installation conditions:
1.The altitude of installation sites do not exceed 2000m;
2.Ambient air temperature does not exceed 40 degrees Celsius, and the average temperature within 24h does not exceed
35 degrees Celsius; Minimum ambient air temperature is -5 degrees Celsius;
3.The air relative humidity of installation sites does not exceed 50% at a maximum temperature of 40 degrees Celsius;
while can be allowed to have higher relative humidity at a lower temperature, such as to reach 90% at 20 degree Celsius.
Special measures should be taken to solve the occasional condensation due to temperature changes.
4. The tilt with the vertical is not more than 5 degrees; Mine starter is composed of the contact mounting surface,
and the tilt with the vertical is not more than 15 degrees.