9. AC Contactor, buy 170A Reversing Contactor on China Suppliers Mobile

Product Details

170A Reversing Contactor

Model: CJX1-170N

Product Description

Reversing 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.

Feature

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.

Rated Current.............................................................170A
Frame Current.............................................................300A
No. of Pole...................................................................3-POLE
Rated Operational Voltage.........................................690V AC
Rated Insulated Voltage.............................................690V AC
Frequency....................................................................50/60Hz
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	Rated Current	Thermal Current	Control Capacity	Case Qty.
Model	(A)	(A)	(KW)	(Pcs)
CJX1-09N	9	20	4	20
CJX1-12N	12	20	5.5	20
CJX1-16N	16	30	7.5	20
CJX1-22N	22	30	11	20
CJX1-32N	32	45	15	10
CJX1-45N	38	45	18.5	8
CJX1-63N	45	70	22	8
CJX1-75N	63	70	30	4
CJX1-85N	75	90	37	4
CJX1-110N	85	90	45	4
CJX1-140N	110	150	55	4
CJX1-170N	140	150	75	2
CJX1-205N	170	180	90	2
CJX1-250N	205	220	110	1
CJX1-300N	250	300	132	1
CJX1-400N	300	300	160	1