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400A 3-POLE Electronic Contactor
Model: CJX2-F400/3P
AC Contactors (Magnetic Contactor) provide remote control of primarily electric motors and compensation & heating systems by cable. They protect the instruments and equipments against overload currents by using thermal relays, for capacitor switching contactor. While switching on a capacitive circuit, a high frequency (1...15Hz) and large transient current peaks are produced. Switching of capacitor for a single or one of the capacitor banks are different from each other. Step by step "switching on" operation is more difficult for contactor than capacitor bank. Because during this operation for capacitor bank, compensated current occurs. For this reason selecting of suitable contactors the compensating current must be take into consideration for 50kVAR and above, and for less than 50kVAR can be omitted.
CJX2-F Series Heavy duty contactor providing controlling of all types of motor for standard or serve duty applications. Controlling of resistive, inductive and capacitive circuits: heating; lighting; power factor correction; transformers, normal-standby.
IEC utilization categories
The current rating of the contactor depends on utilization category. Example IEC categories in standard 60947 are described as:
- AC-1 - Non-inductive or slightly inductive loads, resistance furnaces
- AC-2 - Starting of slip-ring motors: starting, switching-off
- AC-3 - Starting of squirrel-cage motors and switching-off only after the motor is up to speed. (Make Locked Rotor Amps (LRA), Break Full Load Amps (FLA))
- AC-4 - Starting of squirrel-cage motors with inching and plugging duty. Rapid Start/Stop. (Make and Break LRA)
Relays and auxiliary contact blocks are rated according to IEC 60947-5-1.
- AC-15 - Control of electromagnetic loads (>72 VA)
- DC-13 - Control of electromagnets
- Magnetic Contactor should have the high current value without being exposed to and damaged or boiling. This belongs to the quality of contactor. (Contact surface quality and weld technology) Especially at AC-3 and capacitor command, selectivity of contactor is very important.
- Current which passes through the contacts causes warming when the contactor is closed. This warming is limited with the standards. For IEC60947-4-1 when continual thermal current (Ith) is passed though the main contacts, maximum increasing temperature should not exceed 65k.
- While the contactor is cutting the current, electrical arc occurs between the seperated contacts. Arc is the result of the thermal impression of electron and ion current which broke off the contact material. Temperature of the arc reaches to thousands of degrees and this temperature is too high for metals and insulators which are used at contact making and cutting cells. Therefore, arc should end as soon as possible. For this reason separators are used inside of contactors.
Crossing Competetior:
Schneider Electric (TE-Telemecanique)
- Rated Current..............................................................400A
- No. of Pole...................................................................3-POLE
- Rated Operational Voltage.........................................1000V AC
- Frequency....................................................................50/60Hz
- Add-on Aux. Contact..................................................Attachable
- Standards................................................................... IEC60947-4-1
- IP / NEMA Rating.........................................................IP20
- Connection..................................................................Screw + Cable Lug
- Working Temperature................................................-20℃ ~ +80℃
- Mechanical Life.......................................................... 20,000times
- Sample Service...........................................................Pay to Provide
- Quality Assurance......................................................24 months
- Item Condition.............................................................Brand-New
| Item | Rated Current | No. of Pole | Control Capacity (KW) | Case Qty. | |
| Model | (A) | 380V (AC3) | 660V (AC3) | (Pcs) | |
| CJX2-F115/3P | 115 | 3P | 55 | 80 | 4 |
| CJX2-F115/4P | 115 | 4P | 55 | 80 | 4 |
| CJX2-F150/3P | 150 | 3P | 75 | 100 | 4 |
| CJX2-F150/4P | 150 | 4P | 75 | 100 | 4 |
| CJX2-F185/3P | 185 | 3P | 90 | 110 | 4 |
| CJX2-F185/4P | 185 | 4P | 90 | 110 | 2 |
| CJX2-F225/3P | 225 | 3P | 110 | 129 | 2 |
| CJX2-F225/4P | 225 | 4P | 110 | 129 | 2 |
| CJX2-F265/3P | 265 | 3P | 132 | 160 | 2 |
| CJX2-F265/4P | 265 | 4P | 132 | 160 | 2 |
| CJX2-F330/3P | 330 | 3P | 160 | 220 | 2 |
| CJX2-F330/4P | 330 | 4P | 160 | 220 | 2 |
| CJX2-F400/3P | 400 | 3P | 200 | 280 | 2 |
| CJX2-F400/4P | 400 | 4P | 200 | 280 | 2 |
| CJX2-F500/3P | 500 | 3P | 250 | 335 | 2 |
| CJX2-F500/4P | 500 | 4P | 250 | 335 | 2 |
| CJX2-F630/3P | 630 | 3P | 335 | 450 | 1 |
| CJX2-F630/4P | 630 | 4P | 335 | 450 | 1 |
| CJX2-F780/3P | 780 | 3P | 400 | 475 | 1 |
| CJX2-F780/4P | 780 | 4P | 400 | 475 | 1 |
Note:
Please mention the coil voltage when ordering. Our standard coil voltage are 24V; 36V; 110V; 220V; 380V; 415V; Other else upon request.
400A 3-POLE Electronic Contactor
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