CJ12 AC Contactor

CJ12 AC Contactor is mainly used for electric equipment of metallurgy, electric power and hoister. It is suitable for the circuit of AC 50/60Hz, the voltage up to 380V, current up to 600A for remove making and breaking circuit, and frequency starting, stopping and inverse AC motor. The products comply with IEC60947-4.

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Product Description

Product Overview

CJ12 AC contactor is used for the circuit of AC 50 Hz, rated voltage to 380V, current up to 600A of power systems, for remove making and breaking circuit, and frequency starting, stopping and inverse AC motor. Mainly used for electrical control circuits of metallurgy, rolling steel, cranes and other electrical equipment.

Din Rail Mounted Contactor meets the standards of GB14048.4 and IEC60947-4-1.

Model Description

Normal Operating Conditions

1. Ambient temperature: Ambient temperature is not higher than +40°C and not lower than -25°C (can be used at +60°C, but the rated current of contact should be reduced).

2. Altitude: no more than 2000m.

3. Relative humidity is not more than 90% (Monthly average minimum temperature does not exceed +25°C).

4. Amplitude is less than 6mm, vibration frequency is not greater than 3Hz occasions.

5. The inclination of the mounting surface to the vertical or forward or backward shall not exceed 5°.

6. Pollution degree: 3.

7. Installation category: Class III. If the contactor is manufactured according to the humid tropical conditions, it is allowed to work in places where mold and condensation are present when the relative humidity is not more than 95% (+35°C).

Main Technical Parameters

The AC contactor is open type. Its structure is that the electromagnetic system of the rack plane layout is at the right, the main contact is in the middle, the auxiliary contact is at the left, and equipped with rotatable stop. The whole arrangement is convenient for monitoring and maintenance.

The magnetic system of the contactor is composed of U-shaped movable-static iron core and coil. The movable and static iron cores are equipped with the buffer device to prolong the product life. DC magnetic system of CJ12-Z is made of thick steel plate, and the coil is double-winding and occupies a normally closed auxiliary contacts.

The main contact of the contactor is single break point series magnetic blowout structure equipped with a longitudinal slit arc extinguishing cover, which has a good arc extinguishing performance.

Auxiliary contacts are double breakpoint bridge type with transparent protective cover.

The wearing parts of the contactor are easy to assemble and disassemble and easy to maintain and repair.

Model	Pole	Rated operating voltage (V)	Conventional thermal current or Rated operating current (A)	Operation cycles (times/h)	Auxiliary contact					Note
					Utilization Category	Rated operational voltage	Conventional thermal current (A)	Rated control capacity	Combination
CJ12-100	2, 3, 4, 5	AC380	100	600 (note)	AC-15 DC-13	AC380	10	AC 380V 1000VA (not separated in the electric) DC 220V 90W	5 NO + 1 NC 4 NO + 2 NC 3 NO + 3 NC	Note: Load factor is 40%, and the use category is AC-2
CJ12-150			150
CJ12-250			250
CJ12-400			400	300 (note)		DC220
CJ12-630			630

Electrical life and mechanical life of 3P contactor

Rated current (A)	Making and breaking			Operating cycles per hour	Electrical life (1000 times)	Mechanical life (1000 times)
	I	U	Cosφ±0.05
250 and below	2.5le	Ue	0.65	600	150	3000
400 and below				300	100	1000

Note: Electrical life indicator in the table is the AC-2 use category.

The full range of 2P contactors life has 1 million times. The mechanical life of the 4P/5P contactor is 100,000 times.

Outline and lnstallation Dimension

Model	lnstallation Dimension				Max. Outline Dimension						Safety zone		C	Mounting screw
	B				A Total width				E	Q	L	M
	2P	3P	4P	5P	2P	3P	4P	5P	E	Q	L	M
CJ12-100	274	330	386	442	316	372	430	486	194	195	80	50	15	M10
CJ12-150	307	370	433	496	346	409	473	537	219	207	70	40	15	M10
CJ12-250	335	405	475	545	374	445	516	586	255	230	70	80	15	M10
CJ12-400	360	440	520	600	420	500	581	663	296	274	100	80	20	M12
CJ12-630	404	500	596	692	469	566	664	760	349	334	120	100	24	M16