China Suppliers Factory AC Contactor CJ40 ZNFO Traditional Series for 50/60Hz Circuits up to 1000A

The auxiliary code is composed of 5 parts, which are selected in the following order as needed:

• In the first part, “y” means general type, “N” (can be omitted) means reversible type;
• In the second part, 1 digit is used to indicate the number of poles of the main circuit: 3 and 4 respectively indicate 3 and 4 poles, and 3 can be omitted;
• In the third part, 2 digits are used to indicate the highest rated working voltage, "06" (which can be omitted) indicates 690V, "11" indicates 1140V;
• In the fourth part indicates the rated control power supply voltage, with letters "Ac" indicating alternating current 50 Hz and "Dc" indicating direct current. The value of the rated control power supply voltage is behind the letters, but “AC380” can be omitted;
• In the fifth part, the letter "□" and two digits are used together to indicate the type and number of auxiliary contacts, of which the first digit indicates the number of pairs of normally open auxiliary contacts and the second digit indicates the number of pairs of normally closed auxiliary contacts, but “□42” can be omitted.

• The altitude of the installation site should not exceed 2000m;
• The ambient air temperature should not be higher than +40℃ and not be lower than -5℃;
• When the highest temperature is +40℃, the relative humidity of the air on the installation site should not be higher than 50%; A higher relative humidity is allowed at a lower temperature; In the wettest month, the monthly average minimum temperature should not exceed +20℃, and the average maximum relative humidity should not exceed 90%. Measures should be taken for condensation on the product due to temperature change;
• The inclination between the installation surface and the vertical plane should not exceed ±5°.
• Pollution level: level 3;
• The product should be installed in a place without obvious shaking, impact and vibration.