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CJX2-F Series AC Contactors for Motor Control - Reliable China Suppliers & Factory for Industrial Solutions

Introducing the CJX2-F Series AC Contactors, expertly designed for both 50Hz and 60Hz circuits, and capable of handling frequencies from 40Hz to 400Hz with specialized coils. These robust contactors operate up to 660V and 630A, making them an ideal choice for main circuit switching and frequent motor starting/control. Models range from CJX2-F115 to CJX2-F630, and they support various applications including AC-3 and AC-4, As a leading factory in China, we ensure that our products can easily integrate with relays, auxiliary contacts, and pneumatic time-delay heads for efficient interlocked assemblies or star-delta starters. For complete magnetic starter solutions, pair the CJX2-F contactors with thermal relays, Our contactors are particularly well-suited for squirrel-cage asynchronous motors, handling maximum power capacities up to 450W at 660V. With high electrical and mechanical endurance, the CJX2-F Series is the reliable choice for industrial applications. Trust our quality as one of the top suppliers in the industry to meet your operational needs

Product Details

Application

CJX2-F series AC contactors (the following is called a contactor) are used in 50Hz or 60Hz circuits. If equipped with a special coil, they can be used in circuits with a frequency of 40-400Hz, with a voltage up to 660V and a current up to 630A. They are used for making and breaking the main circuit, as well as for frequently starting and controlling motors.

They can be combined with general electrical equipment such as various relays, which can be used to control various electrical equipment, motors, and circuits. With auxiliary contact groups, pneumatic time-delay heads, and mechanical interlocks, they can also form mechanically interlocked contactors and star-delta starters. When combined with a thermal relay, they can form a magnetic starter.

Type & Meaning

CJX2 - F □
1 2 3 4

1	AC contactor
2	miniature
3	series code
4	rated working current

Features

With fine and compact structure, functional molding, and coordinated assembly stereoscopic layout, the contactor product with a triple, triad wiring structure is of linear motion type, and the contact features double-breaking points. A mechanical interlock mechanism is added between two contactors to form a reversible shift contactor.

Product Display

Technical Parameters

Table 1

Type				CJX2-F115	CJX2-F150	CJX2-F185	CJX2-F225	CJX2-F265	CJX2-F330	CJX2-F400	CJX2-F500	CJX2-F630
Rated operational current		AC-3	380V	115	150	185	225	265	330	400	500	630
		AC-3	660V	86	107	118	135	170	325	305	355	460
		AC-4	380V	52	60	79	85	105	217	138	147	188
		AC-4	660V	49	61	69	82	98	118	135	145	170
Controlled squirrel-cage asynchronous motor's max power Pe(W)		AC-3	380V	55	75	90	110	132	160	200	250	335
		AC-3	660V	80	100	110	129	160	220	280	335	450
		AC-4	380V	25	30	40	45	55	63	75	80	100
		AC-4	660V	45	55	63	75	90	110	129	140	160
Conventional thermal current (Ith)				200	250	275	315	350	450	500	700	1000
Rated operational voltage (Ue)				380, 660
Rated insulation voltage (V)				660
Operating frequency				IEC947, GB14048
AC-3	Electrical endurance			60×10⁴		50×10⁴				30×10⁴		20×10⁴
AC-3	Switching frequency			600						300
AC-4	Electrical endurance			15×10⁴						8×10⁴		5×10⁴
AC-4	Switching frequency			150
Mechanical endurance	Time			3×10⁶						1×10⁶
Auxiliary contacts	Rated heating current (Ith) A			10
	Electrical endurance			60×10⁴		50×10⁴				30×10⁴		20×10⁴
	Electrical endurance			60×10⁴		50×10⁴				30×10⁴		20×10⁴

Specification of Coil

Type			CJX2-09	CJX2-12	CJX2-18	CJX2-25	CJX2-32	CJX2-40	CJX2-50	CJX2-63	CJX2-80	CJX2-95
Close voltage 50/60Hz (V)			(0.85~1.1)Us
Release voltage 50/60Hz (V)			(0.2~0.75)Us
Coil power	50Hz	Closing (VA)	70	70	70	110	110	200	200	200	200	200
	50Hz	Closed (VA)	8	8	8	11	11	20	20	20	20	20
	60Hz	Closing (VA)	80	80	80	115	115	200	200	200	200	200
	60Hz	Closed (VA)	8	8	8	11	11	20	20	20	200	200
		Consumption (W)	1.8-2.7	1.8-2.7	1.8-2.7	3~4	3~4	6~10	6~10	6~10	6~10	6~10

Outline and Installation Dimension

CJX2-F115-F330 outline and installation dimensions are shown in Figure 1 and Table 2.

Type	a max	b max	b1 max	c max	G	L	P	Q	Q1	S	X	Z	Y	f max	k max
CJX2-F115	165	164	137	167	80±0.8	108	37	29.5	60	15	57	26.5	M6×15	133	40
CJX2-F150	165	172	137	167	80±0.8	108	40	26.5	57.5	20	57	26.5	M6×20	133	40
CJX2-F185	171	176	137	181	80±0.8	114	40	30	60	20	59.5	29	M6×20	133	40
CJX2-F225	171	199	137	181	80±0.8	114	48	22	52	25	59.5	29	M6×30	133	40
CJX2-F265	204	205	145	210	96±1.1	143	48	39	66.5	25	61	44.5	M6×30	147	50
CJX2-F330	209	209	145	216	96±1.1	148	48	36	74	25	67	50.5	M6×30	147	60

Note: f_min represents the required space for coil replacement, K_min represents the minimum electrical clearance, and the remaining text refers to the clamp plate wiring.

CJX2-F400-F500 outline and installation dimensions are shown in Figure 2 and Table 3 and Table 4.

Type	a max	b max	c max	f max	k max	S	J	L	P	Q	Q1
CJX2-F400	213	206	213	119	70	25	19.5	14.5	48	43	74
CJX2-F500	233	238	226	141	70	30	39.5	146	55	46	77
Type	Size No.		Nominal Value			max			min
CJX2-F400	G		80			102			66
	G1		170			192			156
CJX2-F500	G		80			120			66
	G1		170			210			156

CJX2-F630 outline and installation dimensions are shown in Figure 3 and Table 5.

Size No.	Nominal Value	max	min
G	180	195	100

Frequently Asked Questions

What is the voltage and current range of the CJX2-F series AC contactor?

The CJX2-F series AC contactor supports voltages up to 660V and currents up to 630A. With a special coil, it can also operate in circuits with frequencies ranging from 40 to 400Hz.

What are the main applications of the CJX2-F series contactor?

These contactors are primarily used for making and breaking main circuits, frequently starting and controlling motors, and can be combined with relays, thermal relays, auxiliary contact groups, and mechanical interlocks to form starters and reversible shift contactors.

What does the model number CJX2-F mean?

In the model name CJX2-F□: "1 (CJ)" stands for AC contactor, "2 (X)" stands for miniature, "3 (2-F)" is the series code, and "4 (□)" indicates the rated working current of the unit.

What structural features distinguish the CJX2-F series contactor?

The CJX2-F series features a fine and compact structure with functional molding, a triple triad wiring structure, linear motion type contacts with double-breaking points, and a mechanical interlock mechanism for forming reversible shift contactors.

What is the electrical endurance of the CJX2-F series under AC-3 duty?

Under AC-3 duty, the electrical endurance varies by model: up to 60×10⁴ operations for smaller models (F115–F150), 50×10⁴ for mid-range models, 30×10⁴ for F400–F500, and 20×10⁴ for the F630 model.

What coil voltage range is required to close or release the CJX2-F contactor?

The contactor closes at a coil voltage between 85% and 110% of the rated voltage (Us), and releases at a coil voltage between 20% and 75% of the rated voltage (Us), for both 50Hz and 60Hz supply frequencies.