CJX2 Standard Series

The CJX2 Standard Series is a family of low-voltage AC contactors used for frequent switching of electric motors, lighting, heating, and other electrical loads in industrial and commercial installations. These contactors are designed for AC control circuits and are suitable for use in motor starter combinations, automation panels, HVAC systems, and general switching applications. The series complies with IEC 60947-4-1 / GB14048.4 standards, offering reliable mechanical endurance, low coil power consumption, and a range of contact ratings and auxiliary options.

Technical Specifications

Model Identification

Specification	Details
Series	CJX2 Standard
Product Type	AC Contactor
Standards Compliance	IEC 60947-4-1 / GB14048.4
Mounting	Panel / DIN rail (depending on accessory kit)

Electrical Ratings

Parameter	Specification
Control Voltage (Coil)	AC 24 V / 36 V / 110 V / 220 V / 380 V AC (50/60 Hz)
Main Circuit Rating	AC-3 / AC-4 load categories
Rated Operational Voltage (Ue)	Up to 690 V AC
Rated Insulation Voltage (Ui)	1000 V AC
Rated Impulse Withstand Voltage (Uimp)	6 kV
Frequency	50/60 Hz
Number of Poles	1, 2, 3, 4 poles (depending on variant)

Contact & Load Ratings

Model	Poles	AC-3 Rated Current	AC-4 Rated Current	Application
CJX2-9	3	9 A	4 A	Small motors / loads
CJX2-12	3	12 A	6 A	Small to medium loads
CJX2-18	3	18 A	9 A	Medium loads
CJX2-25	3	25 A	12.5 A	Larger loads
CJX2-32	3	32 A	16 A	Medium high loads
CJX2-40	3	40 A	20 A	Heavier loads
CJX2-50	3	50 A	25 A	High load motors

Contact ratings may vary slightly by manufacturer and specific catalog; always verify with exact model sheet.

Coil & Control Data

Parameter	Specification
Coil Voltage Options	AC 24 V, 36 V, 48 V, 110 V, 220 V, 380 V
Coil Power Consumption	≤ 10 VA (varies with coil voltage)
Coil Operating Frequency	50/60 Hz
Control Type	AC coil with contact feedback option
Mechanical Interlock	Available for multi-contactor assemblies

Auxiliary Contacts & Add-Ons

Accessory	Function
Auxiliary Contact Blocks (1NO/1NC)	Status signaling / logic input
Mechanical Interlock Kit	Prevents simultaneous closing of multiple contactors
Surge Suppression (RC Snubber)	Reduces coil switching spikes
Timer Modules	Delay ON/OFF control
Thermal Overload Relay (paired with CJX2)	Motor overload protection

Mechanical & Environmental

Parameter	Specification
Operating Temperature Range	−5 °C … +40 °C
Humidity	≤ 90 % (non-condensing)
Mechanical Life	≥ 10⁷ operations
Electrical Life (AC-3)	≥ 10⁵ operations
Mounting	Panel or Clip-on DIN rail adapter (model dependent)

Typical Pole / Load Table

CJX2 Model	Poles	AC-3 Load (A)	AC-4 Load (A)	Typical Use
CJX2-9	3P	9 A	4 A	Small motor / lighting
CJX2-12	3P	12 A	6 A	Small motor / heater
CJX2-18	3P	18 A	9 A	Medium motor
CJX2-25	3P	25 A	12.5 A	Larger motor
CJX2-32	3P	32 A	16 A	Medium high loads
CJX2-40	3P	40 A	20 A	Higher load motors
CJX2-50	3P	50 A	25 A	Heavy duty motor