0577-62906996/18066307033 | CJ12-600/2 | Taiwan-Electric CJ20, CJ40, CJ10, CJ12, CJT1, CJ19 AC contactor 50Hz or 60Hz, rated insulation voltage 660-1000V, use the AC-3 category, rated working voltage 380V, rated operating current of 9-475A AC contactor, it is mainly for remote making and breaking electric circuits and components for thermal relay with magnetic starter. Product complies with IEC60947-4-1, GB14048.4 standards. Structural features: contactor for the three-dimensional arrangement, double-break contacts, magnetic system for dual-core engaged the E-type font buffer structure. 1, the contactor has three pairs of normally open contacts, auxiliary contact number: Ie ≤ 32A of products up to 2 open 2 closed; Ie ≤ 45A of products up to 4, 4 closed; 2, contactor interrupter system : Ie ≤ 22A is just across the arc without breaking the cover plate; Ie ≥ 32A arc chamber and fitted with a plastic shield metal arc. 3, the insulating material used high impact strength, high temperature resistance, good arc performance plastics, resulting in products are small, insulation voltage is 660V and 100V. 4, all the terminal screws with self-watt pad using screws, can save a lot of wiring time. 5, the safety contacts: a full range of products can be installed with screws, Ie ≤ 32A of the products can also be embedded on 35mm standard rail mounted quickly, you can save a lot of installation time. Working conditions: 1, altitude less than 2000m 2, ambient temperature: -25 +55 ℃ 3, relative air temperature: at +40 ℃ not more than 50%, at a lower temperature allows a greater relative temperature; 4 Atmospheric conditions: no danger of explosion of the media, nor will corrode metal and damage the insulation of gas and conductive dust; 5, in the absence of a significant shake and shock and vibration; 6, in the absence of rain and snow. AC, DC dissect an AC contactor. Mainly by the electromagnetic mechanism, contact system, arc extinguishing device and other components. Commonly used CJ10, CJ12, CJ12B other series. 2 DC contactor is generally used to control the DC electrical equipment, coil through the DC, DC contactors operating principle and structure of AC contactor is basically the same. But now contactor models are re-divided. All of the AC series. . . 1; AC-1 class contactor is used to control non-inductive or slightly inductive circuit of. 2; AC - 2 class contactor is used to control wound rotor induction motor starting and breaking of. 3; AC-3 and AC - 4 contactors can be used for frequent controlled induction motor starting and breaking basic categories: AC contactor can be divided into electromagnetic, permanent magnet and vacuum three. Common AC contactor CJ10, CJ40, CJ12, CJ20, and the introduction of CJX, 3TB, B series. Electromagnetic contactor AC contactor structure mainly by electromagnetic system, contact system, arc system and other components. ① electromagnetic system: electromagnetic system comprises an electromagnetic coil and the core, is an important part of the contactor, driven by virtue of its contacts closed and disconnected. ② contact system: contactor contacts is the operative part, including the main contacts and auxiliary contacts. The role of the main contact making and breaking main circuit, control larger currents, while the auxiliary contacts are in the control loop, in order to meet the requirements of various control methods. ③ interrupter system: arc extinguishing device opens the circuit to guarantee contact, the resulting arc extinguishing reliability, reduce damage to the arc of contact. In order to rapidly extinguish the arc when disconnected, usually contactors are equipped with interrupter device, generally semi-sealed longitudinal seam clay interrupter cover, and equipped with magnetic arc blow loop. ④ Other parts: an insulating housing, springs, short-circuit ring, transmission and so on. How it works: When the contactor solenoid is not energized, the armature spring reaction force and the weight of the main contacts remain open position. When the solenoid is turned on by the control circuit the control voltage (usually rated voltage), the electromagnetic force against the spring reaction force of the armature attracted to the stationary core, drive the main contacts are closed, connected to the circuit, along with auxiliary contact action. Permanent magnet AC contactor contactor is mainly driven by the structure of the system, contact system, arc system and other components. ① Drive System: drive system includes electronic modules, soft iron, the permanent magnet is a permanent magnet important part of the contactor, driven by virtue of its contacts closed and disconnected. ② contact system: contactor contacts is the operative part, including the main contacts and auxiliary contacts. The role of the main contact making and breaking main circuit, control larger currents, while the auxiliary contacts are in the control loop, in order to meet a variety of control party works: Permanent magnet AC contactor is the use of magnetic poles repel each other , the principle of opposites attract, permanent magnet drive mechanism to replace the traditional magnet drive mechanism and the formation of a micro-power contacts. Linkage mechanism mounted on the contactor of the permanent magnet fixed polarity, and curing the base of the contact on the soft magnetic interaction variable polarity, so as to pull, to maintain and release purposes. Soft magnetic characteristics: permanent magnet AC contactor is characterized by innovative technologies with permanent magnet drive mechanism replaces the conventional solenoid-driven mechanism, namely the use of permanent magnets and control device microelectronic modules, the replacement of the traditional products of the electromagnetic devices running no operating current, only by the weak signal current (0.8-1.5mA). Microelectronics module contains six basic parts: 1. Power rectifier; 2 control supply voltage live? ①. Energy: the traditional closing of the contactor coil is energized to keep the closing by the electromagnetic force to overcome to achieve the opening spring, once the current becomes small enough so that the electromagnetic force generated by the spring reaction force, the contactor can not be maintained together gate status, so conventional AC contactor closing coil to maintain that we must rely on to maintain continuous energization, this current from tens to thousands of milliamps. And Yong ②. No noise: the traditional AC contactor coil is energized closing to keep the silicon is produced by the electromagnetic force, the movement silicon pull, when the grid voltage is insufficient or uneven surface or movement silicon dust, foreign matter, etc. , there will be noise generation. While maintaining permanent magnet AC contactor closing force is to rely on to keep permanent, and therefore there will be no noise is produced. ③. No temperature: rely on conventional contactor coil is energized to generate sufficient force to hold a pull solenoid, the coil is formed by the resistance and inductance, the long-term heat through the current bound, on the other hand, the magnetic flux in the core wear Over will produce heat, both the heat chamber together the contactor, the contactor coil burnout often, while reducing heat capacity of the main contact. The permanent magnet AC contactor is to rely forever ④. Contacts without vibrations: the traditional AC contactor coil is energized by retention is achieved, retention force with current, magnetic gap, and when the voltage is critical in closing and opening state fluctuations, the contactor is like co-like sub-state will continue to chatter, causing contact welding or burning, leaving the motor burned out. The permanent magnet AC contactor retention, totally dependent on permanent force to achieve a complete pull, Voltage @ K??? W??? ⑤., Long life, high reliability: the life and reliability of the contactor is mainly coil and contact life decision. Because of its traditional AC contactor coil and core work may have a fever, especially the voltage, current, magnetic gap increases easily lead to heat and burn the coil, while the permanent magnet AC contactor coil may burn does not exist. Contact ablation is dominated by sub-gate, closing, arcing caused. And mass ⑥. Anti-electromagnetic interference: Permanent magnet AC contactor with permanent magnet magnetic circuit is completely sealed, in the course will not be subject to outside electromagnetic interference, nor will the external electromagnetic interference ⑦. Intelligent anti Akira power : control electronics module controls the release of the set voltage value can be delayed a certain time and then send reverse pulse current to achieve low-voltage power-off delay time release or release to control the motor from voltage fluctuations (Akira power) The jump stop, so as to maintain the stability of the production system. In particular device type continuous production enterprises can reduce venting and resume production of electricity, steam, natural gas use maintenance selection ① Press contactor control objects, the number of operations and the use of category select the appropriate category contactor. ② Press the location at the rated voltage of the line selection. ③ Press the load capacities main contact of the rated current. ④ attracting coil voltage rating and current species, should be given to controlling power requirements. ⑤ capacity options for auxiliary contacts, according to the needs of the quantity and interlock circuit attached?? ⑥ For contactor making and breaking capacity issues, the choice should pay attention to some of the load using categories, such as capacitors, tungsten wire lamps and other lighting device, turn it on when the current value of a large, on-off time is longer, the choice should be left margin. ⑦ For contactor electrical life and mechanical life issues, from the known average number of operations per hour and the life of the machine age, calculate the required electrical life, if it can not meet the maintenance ① operation inspection items: 1) whether the current through the load within the contactor rating; 2) contactor and circuit switching signal indicates whether the state match; 3) running sound is normal, whether due to poor contact discharge sound issue; 4) without overheating the solenoid, solenoid Short iron ring without exception. 5) interrupter cover loose and injury; 6) auxiliary contacts without burning case; 7) nter???? Rc ② Maintenance: maintenance work on electrical equipment, should be a contactor for maintenance and work. A) external maintenance: a. External cleaning dust; b. Check all fasteners are loose, especially conductor connecting portion, to prevent contact with loose and fever; 2) Contact System Maintenance: a. Check the dynamic and static contact location is on the positive, while three-phase is closed, any questions should be adjusted contact spring; b. Check the contacts wear, wear depth not exceeding 1mm, contacts with burning, open solder off, it should be promptly replaced; slight burning, generally does not affect use. Use sandpaper to clean contact is not allowed, you should use plastic file; c. Measuring electric three phase insulation) core portion Maintenance: a. Clean the dust, especially the moving parts and the contact surface between the core pull; b. Check the fastening core, the core running loose will cause increased noise; c. Core shorting rings have to be repaired or broken off. 4) solenoid maintenance: a. Measuring coil insulation resistance; b. Coil insulation without discoloration, aging, coil surface temperature should not exceed 65 ° C; c. Check coil lead connection, if open welding, burning should be promptly repaired. 5) interrupter cover some maintenance: a. Check the interrupter cover is broken; b. Interrupter cover for looseness and position changes; c. Clear interrupter cover crevices metal particles and debris.