Electromagnetic contactor (contactor) refers to an electrical appliance that uses the current flowing through the coil to generate a magnetic field in industrial electricity to close the contact so as to control the load. The contactor is composed of electromagnetic system (armature, stator core, electromagnetic coil), contact system (normally open contact and normally closed contact) and arc extinguishing device. Structural composition Electromagnetic contactor is mainly composed of transmission device (electromagnetic mechanism), contact device (actuator) and arc extinguishing device. 1. Electromagnetic mechanism The electromagnetic mechanism includes three parts: moving core (armature), static core and electromagnetic coil. The electromagnetic coil is connected with current to generate electromagnetic suction and drive the contact to act. Electromagnetic mechanism is one of the important parts of electromagnetic contactor. The electromagnetic mechanism is composed of coil, iron core (static iron core), armature (moving iron core), pole shoe, iron yoke and air gap. The coil and iron core in the electromagnetic mechanism do not move in the working state; The armature is movable. The electromagnetic mechanism converts the electromagnetic energy generated by the electromagnetic coil into mechanical energy through the action state and action process of the armature and the corresponding mechanical mechanism to drive the contact to close or open, so as to realize the control purpose of the controlled circuit.
Description CJ16(19) switch-over capacitor contactor is the new type of components for electric appliances, standard for 400V(50/60Hz) grid, 3P3W connection from 25A~95A. It is developed and produced on the basis of the introduced foreign technology of the same kind. The device is widely applied to low voltage reactive power compensation device to replace the subassembly composed of three XD1 current-limiting reactors and CJ10 contactor, and it is also can be used in the general control circuit to limit surge impact, protect capacitor and other electrical device from over voltage damage.
Chv-450/3.6(1.14) contactor has the same performance and function with baker ac contactor, while it's more aligned with chinese national standards on some parameter index, contactor has independent drive with insolating function and the ability of breaking short time current. It has current/voltage mutual inductor which can realise the zero-current-break and comprehensive protection function; adopt quick pipe connection mode which is easy to use and maintain; highly integrated with small size and compact structure.
JCZR 7.2kv 12kv Indoor Vacuum Contactor-Fuse Combination Electric Appliance General: This combination electric appliance may install in the switch cabinet to form the F-C loop, use with the integrated protection device. It is used for loading of the switching on and switching off the power pant as well as the industry and mining enterprise, dropout AC high-tension motor, the transformer, capacitor and so on, and it has overload, short circuit protection function. This combination electric appliance may use in AC 50 HZ three-phase power systems. Technical Data: 1. Main Technical Parameter see Table 1. Rated voltage: 7.2 kv / 12 kv Power frequency withstand voltage phase to phase, to earth: 32 kv / 42 kv Power frequency withstand voltage the fracture impact withstand voltage(fracture): 60 kv / 75 kv Fuse rated current A: 25-250 / 25-250 Prospective short circuit breaking current KA: 50 / 50 Prospective short circuit making current(peak value) KA: 130 / 130 Prospective short circuit withstand current( peak value) KA: 10 / 10 Rated short time withstand current( effective value) KA: 4 / 4 Rated short circuit duration S: 4 / 4 Rated making current KA: 4 / 4 Rated breaking current KA: 3.2 / 3.2 Limit breaking current KA: 4.5 / 4.5 Contactor distance between fixed and moving contact mm: 4.5 / 5 Contactor over-travel mm: 1.5 / 1.5 Mechanical life times: Model J:100,000; Model D:300,000 / Model J:100,000; Model D:300,000 Closing coil Rated operation voltage(V): DC220,DC110 Opening coil Rated operation voltage(V): DC220,DC110 Holding coil Rated operation voltage(V): DC220,DC110 Closing coil power: 1200 W Holding coil power: 15 W Opening coil power: 80 W Closing coil Normal work voltage range: 85%-110% rated voltage Holding coil Normal work voltage range: 85%-110% rated voltage Opening coil Normal work voltage range: 60%-120% rated voltage
CJX2(LC1-F 3) Magnetic Contactor ac contactor is applicable in the circuit rated voltage up to 1000V AC. 50Hz or 60Hz,rated current up to 780A, for long distance breaking circuit and frequently starting or controlling the motor. It also can be used for the control of distributing circuits of rated current from 200A to 1600A.(AC-1)/115A to 780A(AC-3)
High and Low voltage DC contactors from M/S. DONGYA ELECTRIC, CHINA
1. General The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear. 2. Working condition: 1) Altitude should not be over 1,000m; 2) Ambient temperature: -5~40°C; 3) Average temperature in 24 hour not exceed 35°C; 4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%; 5) Pollution degree: class 3 Main models and technical parameters Rated voltage: 7.2 kv Control voltage: 380/220/110 Rated current: 630A Clearance: 3.5±0.3 mm Over travel: 2±0.2 mm Pressure: >85N Main circuit power frequency withstand voltage: 32000 v Auxiliary circuit power frequency withstand voltage: 2500 v Control circuit power frequency withstand voltage: 2000 v Making capacity: 10Ie,100 times Breaking capacity: 8Ie,25 times Limit opening current(A): 10Ie Overload: 8Ie,10 s Mechanism life: 1 million times Weight: 25.5 KG Note: Ie represents the rated current of main circuit
1. General The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear. 2. Working condition: 1) Altitude should not be over 1,000m; 2) Ambient temperature: -5~40°C; 3) Average temperature in 24 hour not exceed 35°C; 4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%; 5) Pollution degree: class 3 Main models and technical parameters Rated voltage: 7.2 kv Control voltage: 380/220/110 Rated current: 630A Clearance: 3.5±0.3 mm Over travel: 2±0.2 mm Pressure: >85N Main circuit power frequency withstand voltage: 32000 v Auxiliary circuit power frequency withstand voltage: 2500 v Control circuit power frequency withstand voltage: 2000 v Making capacity: 10Ie,100 times Breaking capacity: 8Ie,25 times Limit opening current(A): 10Ie Overload: 8Ie,10 s Mechanism life: 1 million times Weight: 25.5 KG Note: Ie represents the rated current of main circuit
1. General The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear. 2. Working condition: 1) Altitude should not be over 1,000m; 2) Ambient temperature: -5~40°C; 3) Average temperature in 24 hour not exceed 35°C; 4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%; 5) Pollution degree: class 3 Main models and technical parameters Rated voltage: 7.2 kv Control voltage: 380/220/110 Rated current: 160A Clearance: 3.5±0.3 mm Over travel: 2±0.2 mm Pressure: >85N Main circuit power frequency withstand voltage: 32000 v Auxiliary circuit power frequency withstand voltage: 2500 v Control circuit power frequency withstand voltage: 2000 v Making capacity: 10Ie,100 times Breaking capacity: 8Ie,25 times Limit opening current(A): 10Ie Overload: 8Ie,10 s Mechanism life: 1 million times Weight: 25.5 KG Note: Ie represents the rated current of main circuit
CT single phase Household Contactor is suitable for using in the circuits up to the rated voltage 400V AC 50/60Hz rated current up to 63A,for making ,frequently starting and machine interlocking device,it becomes the delay the contactor,mechanical interlocking contactor star-delta starter,with the thermal relay , it is combined into the electromagnetic starter.the contactor is according to IEC61095, EN61095, GB17885.
iCT DIN Rail Modular Contactor is a kind of control electric appliance which is used for long distance/remote switch on and break off a non-inductive load or low inductive load, such as electric resistance furnace, household appliances and similar low inductive load,motor and other household application.
CE Certificate CJX2 series 3P AC Contactor Our featured products automatic transfer switch, circuit breaker, contactor, pilot light,relay, SPD, etc. with solid quality and considerable price and could equip them with enclosure. Application CJX2 Series AC contactor is mainly applies to the circuit of AC 50Hz/60Hz, and rated insulation voltage 660V. When use in AC-3, and rated operational voltage is 380V, rated current up to 630A, for long distance breaking circuit and frequently starting or control the motor. Combined with proper thermal overload relay can protect load circuit. Contactor can frequently start and control AC electromotor. Construction Features 1. Adopt build-in block system to mount auxiliary contractor block, air delay auxiliary contractor, thermal overload relay and so on, which can be combined into multiple derved series product. 2. Contactor has the advantage of Small volume, light, low consumption, long life and good safety. 3. Main contactor below 32A has 1N/C or 1N/O, there is 1N/C and 1N/O above 40A, Contactor can be assembled with F4, F8 auxiliary contact or time-delay block. 4. Contactor can not only use screw mounting, but also use 35mm(CJX2-09-95), 75mm (CJX2-40-95) and 2x35mm (CJX2-D115-170) international standard Din-rail mounting
Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are used in power, power distribution and power consumption. Broadly speaking, contactor refers to an electrical appliance that uses the current flowing through the coil to generate a magnetic field and close the contact in order to control the load. main features The AC contactor uses the main contact to open and close the circuit and the auxiliary contact to turn on the control circuit. The main contact is generally normally open contact, while the auxiliary contact often has two pairs of normally open contact and normally closed contact. Small contactors are often used as intermediate relays to cooperate with the main circuit. The contact of AC contactor is made of silver tungsten alloy, which has good conductivity and high temperature ablation resistance. The power of AC contactor action comes from the magnetic field generated by AC through the coil with iron core. The electromagnet core is composed of two "mountain" shaped young silicon steel sheets. One of the fixed iron core is sleeved with coil, and the working voltage can be selected. In order to stabilize the magnetic force, a short-circuit ring is added to the suction surface of the iron core. After the AC contactor loses power, it returns by spring. The other half is a movable iron core, whose structure is the same as that of a fixed iron core, which is used to drive the closing and breaking of the main contact and auxiliary contact.
HVJ3 12KV VACUUM CONTACTOR Detailed product description: The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 12kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear. Working condition: 1) Altitude should not be over 1,000m; 2) Ambient temperature: -5~40°C; 3) Average temperature in 24 hour not exceed 35°C; 4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%; 5) Pollution degree: class 3 .Main models and technical parameters Rated voltage: 12 KV Control voltage: 220/110/380 Rated current: 160A, 250A, 400A, 630A Clearance: 5±0.5 mm Over travel: 2±0.2 mm Pressure: >85N Main circuit power frequency withstand voltage: 42000 v Auxiliary circuit power frequency withstand voltage: 2500 v Control circuit power frequency withstand voltage: 2000 v Making capacity: 10Ie,100 times Breaking capacity: 8Ie,25 times Limit opening current(A): 10Ie Overload: 8Ie,10 s Mechanism life: 1 million times Weight: 30KG Note: “Ie” represents the rated current of main circuit
1. General HVJ5 1.14kv 125A AC vacuum contactor is designed for long-distance making and breaking of circuit, frequent starting and controlling of AC motors in the power systems, with AC 50Hz-60Hz, rated voltage of 1,140V and rated current to 125A. It also can be equipped with thermal relay and all kinds of protection apparatus like electromagnetic starter, especially applied to explosion-proof starter and so on. 2. Main technical parameter Rated voltage: 1140 V Control voltage: 36V, 110V, 220V, 380V Rated current: 125A Opening distance: 1.8±0.2 mm Over travel: 1±0.2 mm Final pressure: 30±3 N Main circuit power frequency voltage withstand: 4200 V Auxiliary circuit power frequency voltage withstand: 2500 V Control circuit power frequency voltage withstand: 2000 V Making capacity: 10Ie,100 times Breaking capacity: 8Ie,25 times Limit breaking current(A): 2000,3 times Electricity life times AC3: 60*104 Electricity life times AC4: 60*104 Mechanical life times: 300*104 Overload capacity: 8Ie 10 S Remark: “Ie” is Rated current of main circuit.
HVJ20 series vacuum contactor has higher rated current, smaller size and anti-dusty advantages. It can be used in AC50 ~ 60Hz, 2KV power system, rated current to 800A, for long distance making-breaking and frequent starting and controlling of AC motor. Rated voltage: 2 kv / 2 kv Rated current: 630A / 800A Main circuit making ability (A/100 times): 6300 / 6300 Main circuit break-make ability (A/10 times): 5000 / 6000 Maximum breaking ability (A/3 times): 6300 / 6300 Electrical life AC3(times): 600,000 / 600,000 Electrical life AC4(times): 100,000 / 100,000 Mechanical life(times): 1,000,000 / 1,000,000 Rated operating frequency AC3(times /h): 300 / 300 Rated operating frequency AC4(times /h): 120 / 120 Short-time operating frequency times /h(20S): 1200 / 1200 Clearance between open contacts(mm): 3±0.3 / 3±0.3 Over travel(mm): =1 / =1
HVJ3 7.2KV VACUUM CONTACTOR 1. General The vacuum contactor is mainly used in the power system with AC 50Hz and rated voltage 7.2kV, for making or breaking circuit and to make electromagnetic starter with suitable protective device and F-C switchgear. 2. Working condition: 1) Altitude should not be over 1,000m; 2) Ambient temperature: -5~40°C; 3) Average temperature in 24 hour not exceed 35°C; 4) When the highest temperature is 40°C, the relative humidity should not be higher than 50%; 5) Pollution degree: class 3 Main models and technical parameters Rated voltage: 7.2 kv Control voltage: 380/220/110 Rated current: 160A, 250A, 400A, 630A, 800A, 1000A Clearance: 3.5±0.3 mm Over travel: 2±0.2 mm Pressure: >85N Main circuit power frequency withstand voltage: 32000 v Auxiliary circuit power frequency withstand voltage: 2500 v Control circuit power frequency withstand voltage: 2000 v Making capacity: 10Ie,100 times Breaking capacity: 8Ie,25 times Limit opening current(A): 10Ie Overload: 8Ie,10 s Mechanism life: 1 million times Weight: 25.5 KG Note: “Ie” represents the rated current of main circuit
HVJ30 1.14kv vacuum contactor 1000A 1250A HVJ30-1.14/1000?1250 series AC vacuum contactor is applicable for AC 50HZ power system of rated voltage 1.14KV and rated current up to 1000 A~1250Ato open and close circuit, start and control AC motor frequently. It is suitable for composed magnetic starter with various protective devices (JDB electronic integrated protector, JR9 type over current protection device, resistance-capacitance absorbers). It is particularly suitable for compose a explosion-proof magnetic starter and large mineral switchgear. Rated voltage: 1.14 kv Rated current: 1000A 1250A Making capacity(A): 5000(100 times) Breaking capacity(A): 4500(10 times) Limit breaking capacity(A): 5000(3 times) Electrical life times(AC3): 600,000 times Electrical life times(AC4): 6,000 times Mechanical life times: 1,000,000 times Rated operating frequency (AC3): 600 times /h Rated operating frequency (AC4): 120 times /h Short-time operating frequency(20s): 1000 times /h Contacts separation: 2.8±0.1 mm Over travel: 1.0±0.1 mm
CJ40 3P magnetic motor starter ac contactor is mainly used for AC 50Hz (or 60Hz), rated voltage to 660V (or 1140V, rated current of 1000A connected to power lines and breaking the circuit, and can with the appropriate thermal relay or electronic protection device combined into electromagnetic starter in order to protect the circuit overload that may occur. Products comply with GB14048.4, IEC 60947-4-1, and GB21518-2008 "AC contactor limit value of energy efficiency rating and energy efficiency rating.
CJT1 220V-380V air ac modular contactor is suitable for frequency 50HZ,rated insulation voltage up to 380V, rated operation current 10-150A. It is mainly used for making or breaking electric circuits at a long distance and for frequent starting and stopping and controlling AC motors. It is used in combination with thermal relay to compose a magnetic motor starter. The product accords with standard IEC 60947-4-1,GB14048.4
