AC Contactor for Tower Crane Electrical Spare Knc8

• Customization: Available
• Electricity Type: AC
• Number of Pole: 1
• Model NO.: KNC8
• Phase: 3
• Type: Ac Contactors
• Size: 40~56
• Category: AC-3
• Transport Package: Carton
• Specification: 9A~400A
• Trademark: korlen
• Origin: Wenzhou; Zhejiang; China
• HS Code: 8536900000
• Production Capacity: 5000PCS/Day

Product Description

AC Contactor for Tower Crane Electrical Spare 
The series KNC8 AC contactor is suitable for 50/60Hz, rated insulation voltage is 690-1000V, Rated current is 9A-400A at rated operational voltage 380V under the utilization category AC-3. It mainly used for making or breaking circuit at a long distance, suitable for controlling starting\stopping\reversing of AC motor. According with IEC60947 VED0660 GB14048 standards.

1. Good safety, induction parts are inside.
2. Small volume, light weight, material of air chute not easily to break and good arc capability.
3. Air chamber is sealing type, distance of arcover is small, can reduce the measurement Of electric box body.
4. Unique system frame of main contact group, contact abrasion reduce, increase the electro-life.
5. Electromagnet works reliably, abrasion is more less, low noise, having high mechanical Intensity.
6. Frequency operation and controlling capacity are all very high.
7. It's convenient for connection, fastness, high touch reliability, strong vibration resistance, Good safety precaution.

Type			KNC8-40	KNC8-41	KNC8-44	KNC8-46	KNC8-47	KNC8-48	KNC8-49	KNC8-50	KNC8-52	KNC8-54	KNC8-56
Rated insulation voltage(V)			690	690	690	1000	1000	1000	1000	1000	1000	1000	1000
Rated operational current(380V		AC-3	9	12	32	45	63	75	85	110	170	250	400
		AC-4	3.3	3.3	15.5	24	28	34	42	54	75	110	150
Rated outputs of three-phase motors at 50Hz	AC-3 AC-4	230/220V	2.4	2.4	8.5	15	18.5	22	26	37	55	78	125
		400/380V	4	4	15	22	30	37	45	55	90	132	200
		500V	5.5	5.5	21	30	41	50	59	76	118	178	284
		690/660V	5.5	5.5	23	39	55	67	67	100	159	235	375
		1000V	-	-	-	-	-	39	39	65	90	132	250
	400/380V		1.48/1.4	1.48/1.4	7.5	12.6/12	14.7/14	17.9/17	22/21	28.4/27	40/38	61/58	85/81
	690/660		2.54/2.4	2.54/2.4	13	21.8/20.8	25.4/24.3	30.9/29.5	38/36	49/46.9	69/66	105/100	147/140
Mechanical endurance(×10 6 )                                    (0.8-1.1)Us
Electrical endurance(×10 6 )		AC-3	10	10	10	10	10	10	10	10	10	10	10
		AC-4	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
Switching frequency		AC-3	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
		AC-4	1000	1000	750	1200	1000	1000	850	100	700	700	500
Coil voltage tolerance			250	250	250	400	300	300	250	300	200	200	150
Power consumption of coil(50Hz		Closed(VA)	10	10	12.1	17	17	32	32	39	58	84	115
		p.f.	0.29	0.29	0.28	0.29	0.29	0.23	0.23	0.24	0.26	0.24	0.33
		Colsing(VA)	6.8	6.8	101	183	183	330	330	550	910	1430	2450
		p.f.	0.82	0.82	0.83	0.6	0.6	0.5	0.5	0.45	0.38	0.34	0.21
Conventional thermal current			20	20	55	80	90	100	100	140	210	300	400
Conventional thermal current of auxiliary contacts			10	10	10	10	10	10	10	10	10	10	10
Rated operational current of auxiliary contacts		AC-15 380/220V	6/10	6/10	4/6	4/6	4/6	4/6	4/6	4/6	4/6	4/6	4/6

Company Company Introduction



Wenzhou Korlen Electric Appliances Co., Ltd, It is a joint venture. My company is a manufacturer including design, development, produce and sale, professional producing MCB, MCCB, RCCB and AC contactor etc. Product enterprises. The company owns import and export power of self-run, expanding Europe and America, Middle East, Southeast Asia etc. Market, set a good Public praise.

The company have more than 1500 workers, including senior engineer among them, engineer at inside of more than 100 technician. And then set up to cover area more than 50 acres, construct area is more than 38000 square meters of the modern industrial zone, providing with the forerunner's standard laboratory and various examination equipments.

Under Korlen people to make great effort unremittingly, designed and developed by oneself, develop and produce the series of MCB, RCCB filled up local blank, attain inter-national advanced level, and acquire more than 20 national patents. The company acquires "30 strong eminent enterprises, top ten of export income, yueqing star class enterprise, attach importance to contract and keeps promise" title of honor for many times past years. Company still the initiative pass ISO 9001 management system verification and 14001 environments management system verification. Our product passed quality verification of domestic and international authority organization like the CB\ SEMKO\ NF\ SIRIM\ SNI\ CE \PCT\ TSE, In the meantime high breaking capacity breaker of our company in this city is the unique product which got " Yueqing famous brand product" by Yueqing people government.

Korlen Electric Appliances is willing to make friends with social public, the world outside businessman join hands together for prosperous society and development to build a brighter future.



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