CKJ20-630A, 800A AC Low Voltage 1140V Vacuum Contactor

CKJ20 series of vacuum contactors main used for AC 50-60hz, main circuit rated voltage 1.6kv below the rated current from 630A-1000A power network systems for remote making and breaking and frequent starting and control of AC motors, transformers and capacitor banks and other occasions.

Advantages: good compatibility, stable and reliable performance, free maintenance and long service life, is old-fashioned vacuum contactor switch is the ideal substitute of products.

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CKJ20-630A, 800A AC Low Voltage 1140V Vacuum Contactor

Electrical Products

Working Environment
Technical Parameters
Dimensions

Normal working and installation conditions of CKJ20 AC Low Voltage Vacuum Contactor

Attitude no more than 2000m, Ambient temperature within -5℃~+40℃, and the average temperature no more than +35℃ in 24hours.

Technical Parameters of CKJ20 AC Low Voltage Vacuum Contactor

Model	CKJ20-630	CKJ20-800
Main circuit Rated vol.(V)	1140	1140
Main circuit Rated current.(A)	630	800
Main circuit connection capability (A/100 times)	6000	6000
Main circuit on and off capability (A/10 times)	4800	5000
Limit breaking capacity (A/3 times)	6000	6000
Electrical life AC3 (10,000 times)	60	60
Electrical life AC4 (10,000 times)	6	6
Mechanical life (10,000 times)	300	300
Rated operating frequency AC3 (times/h)	600	600
Rated operating frequency AC4 (times/h)	120	120
Short time operation frequency times/h (20s)	2000	2000
Contact Open distance (mm)	2.5 ±0.3	2.5 ±0.3
Overtravel (mm)	≥1	≥1