CKJ3-1250/1140V Taiwan Hui electrical switch factory have professional technical support and maintenance services and timely solutions to your technical questions and help your normal production run (Model | works | role | choice | selection | Symbols | Parameter | Brand | Price | rated current) Tel: 18066307033 0577-62906996 The following is a low voltage vacuum contactors product information, high-pressure part unedited, are not so many words fill platform, to high-voltage vacuum contactors information please contact us or + QQ: 398015993 CKJ3-1250/1140V Details: 1.1 Main purpose and scope of low-voltage AC vacuum contactor is suitable for AC 50Hz, rated working voltage up to 1140V, rated current up to 63A of power system, long-distance making and breaking circuit and frequently starting and stopping control AC motor; and suitable with a variety of protective devices (JDB electronic integrated protection, JR9 type overcurrent protection devices, the RC absorption unit) consisting magnetic starter, especially suitable for explosion-proof magnetic starter composition. 1.2 Product Features vacuum interrupter technique, a self-making and breaking capacity, power, long life, high operational reliability, the working process is almost no noise, etc. 1.3 Use of the environment a. Altitude does not exceed 2000m; b. Ambient air temperature maximum does not exceed +40 ℃, the minimum of not less than -5 ℃; c. ambient air relative humidity not more than 95% (+25 ℃ when); d. installation and the vertical gradient of not more than 15 degrees; e. no significant with shock, vibration and shaking of the occasion; f. enough to corrode metal and damage the insulation of gas and vapor environment; g. in the absence of rain and snow; h. less pollution in the three environments; j. use Category: AC3, AC4. 1.4 Model components and what they mean C J AC vacuum contactor K 5 design number 63 Rated Current (A) 1140 Rated voltage (V) 2 overall structure, working principle and operating characteristics 2.1 vacuum contactor is mainly composed of vacuum interrupter system, electromagnetic system, the lever transmission, auxiliary contacts, rectifier unit, insulating frame, chassis and other components; fewer parts, compact structure; 2.2 contacts are enclosed in a vacuum interrupter isolated chamber, not because of external contamination impact of their work; 2.3 to vacuum the extinction media, breaking ability, power, long life, such as AC-4 electric life an average of 3 to 4 million times, and some products can be up to 60,000 times or more, it is for other contacts is difficult; 2.4 arc nothing more than spray (the spray arc distance of zero), will not cause a fire or explosion; 2.5 work process does not spread out harmful gases to ensure the work environment clean; 2.6 contacts open away from the small, ultra-short range, approximately equal to an equal volume of air contactor 1/6 to 1/10, so that the entire contactor small size, light weight, which for the combination of electrical and complete sets of equipment used to provide the affordable products; 2.7 control circuit consists of DC magnetic system and the rectifier device component; 2.8 almost no noise during operation, to ensure a quiet working environment; 2.9 AC and DC power supply can be used to facilitate the user's choice. 5 products, methods of operation 5.1 Preparation and inspection before use; 5.1.1 should check the product before use to connect is loose, shedding phenomenon; 5.1.2 is reliable power line and fixed terminals, and maintain required clearances and creepage distance; 5.2 use methods of operation; 5.2.1 installed by use of the environment contactors; 5.2.2 the nominal control voltage is directly connected to the contactor terminals on the power supply board (have left). 6 Parameter Settings and check the voltage level of 6.1 Commissioning and related technical parameters are correct, we can send electricity to debug; 6.2 contactor factory-adjusted, generally do not need to mobilize, as a result of replacement of vacuum switch tubes need to be mobilized, press the following steps to adjust: 1) Loosen the soft coupling screws, lock nut, rotating the lever, and then loosen the screw tube, remove the damaged pipe, and then press the same in reverse order put on new models of vacuum tubes; 2) open distance adjustment method, rotating the adjustment lever (clockwise), available vernier caliper, make contact opening distance meet the technical requirements specified value, and to achieve synchronization phase until then tighten to; 3) replacement of the new vacuum switch tube , the available frequency voltage vacuum test method, requiring open from 1:00 withstand 10kV lasted 1min, after test, should be no breakdown continued flashover, no such condition can be 500V megger insulation resistance test tube, the new The vacuum insulation resistance should be greater than 100MΩ. 7 contactor failure analysis and troubleshooting possible faults and troubleshooting Table 4 Table 4 Faults and troubleshooting Symptom Cause Remedy poor contact of the fixed check whether the connection is not reliable reliable fastening remain fixed at specified clearances and climbing electric sound right from the contacts view may spring loose spring, and do not respond appropriately adjusted energized control circuit board burn might see if there is sealing off the board, measuring rectifier bridge is intact there may be a lack of phase phenomenon has burnt out vacuum tubes only Replacement tube 8 transport, storage requirements should be stored in ventilated, dry place to prevent corrosion. 9 9.1 Unpacking and checking the check box and packaging materials, data: out of the box and the user should check whether the product is consistent with the ordered products, product certification, manuals and other important documents; 9.2 Checking Appearance: After checking out of the box the appearance of the product during transport for obvious cracks or damage. 10 Precautions should be checked prior to use and the actual use of products manufactured voltage matches voltage and check other key technical parameters. 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