CKJ3 Series 1140V 3 Phase Electrical Contactor 800A 1000A 1250A

CKJ3 Series 1140V 3 Phase Electrical Contactor 800A 1000A 1250A

• Specification
• Parameters

• CKJ3 Series 1140V 3 Phase Electrical Contactor 800A 1000A 1250A

  CKJ3 series belongs to high current series, applicable to AC 50Hz-60Hz, rated voltage up to 1140V, upper limit up to 2kV, rated current up to 800-1000-1250A control circuit. It is used for connecting and breaking circuits at a distance and frequently starting AC motors.

  The product adopts ceramic vacuum switching tube, the tube with high vacuum as a medium, thus, its small size, high voltage, strong breaking capacity, long service life, contact without maintenance, especially because the arc is not exposed, safe and reliable advantages, for coal, electric power, chemical industry, metallurgy, petroleum and other industrial sectors are widely used.

   

  Product features
  1. Small volume, light weight, collision resistance, transport without damage, flexible installation, suitable for use in the switchgear cabinet.
  2. Special structure, overall moulding, no gap, good sealing, moisture-proof and explosion-proof.
  3. Large creepage distance, good water-enhancement, strong dirt resistance, stable performance, reduce operation and maintenance.

   

  Working conditions

  1. Suitable for indoor and outdoor;
  2. Ambient temperature -40°C～+40°C;
  3. The altitude does not exceed 3000m (the porcelain sleeve type does not exceed 1000m);
  4. The power frequency is not less than 48Hz and not more than 62Hz;
  5. The power frequency voltage applied between the terminals of the 1140V low-voltage vacuum contactor for a long time shall not exceed the continuous operating power of the 1140V low-voltage vacuum contactor;
  6. Areas with an earthquake intensity of 8 degrees or below;
  7. The wind speed does not exceed 35m/s;

• Technical parameters

  Model	Unit	Data
  Rated Working Voltage	V	1140
  Rated working current	A	800, 1000, 1250
  Rated frequency	Hz	50~60
  Rated connecting capacity	A	4Ie (AC-2)
  Rated breaking capacity	A	4Ie (AC-2)
  Overload current withstand capacity	A/s	4Ie/10
  Frequency withstand voltage phase-to-phase and phase-to-ground	KV	4.2
  Industrial Frequency Tolerance VoltageVacuum Break	KV	10
  Lightning impulse withstand voltage	KV	8
  Rated Voltage	V	AC 220/380 DC 110/220
  Rated Power Maintenance	VA	≤1000/100 (Pull in/hold)
  Rated power mechanical holding	VA	≤900/600 (opening/closing)
  Form		3a+ab
  Rated value		AC380V/5A DC380V/1A
  Control circuit, auxiliary circuit to ground frequency withstand voltage	KV	2
  Rated operating frequency long-term or mechanical retention type	times/h	300
  Rated operating frequency short-term	times/h	600
  Mechanical life	times	100
  Electrical life	times	25(AC-2)
  Closing time	ms	≤200
  Fixed switching time	ms	≤160（electric hold）≤160（mechanical hold）
  3-phase non-simultaneous	ms	≤3
  Closing bounce	ms	≤10

  Shape and Installation Dimensions

  

   

If you would like a quotation or further information on this product, please fill in the form below and we will reply to you within 1 working day.