Ckj5 Contactor Low Voltage Vacuum Switch

General description
This series of contactors use vacuum switch tubes as arc extinguishing components, which have the characteristics of no arc flash, long life, no noise, small size, safe and reliable. It can be widely used in the power network of AC 50/60 Hz and rated operating voltage of 1140 volts to connect and disconnect circuits, and form an electromagnetic starter with appropriate thermal relays or electronic protection devices and other related protection devices, especially suitable for forming Explosive electromagnetic starter and various power control screens. It is the most ideal circuit device for coal, petroleum, chemical industry, metallurgy, machinery, transportation and power industries.

Technical parameters

Main circuit rated voltage	kV	1.14
Main circuit rated current	A	80	125	160	250	400	630
Main circuit making capacity	A/100times	800	1250	1600	2500	4000	6300
Main circuit breaking capacity	A/100times	1000	1000	1000	2000	3200	4800
Electrical life AC3	Ten-thousand times	60
Electrical life AC4	Ten-thousand times	6
Mechanical life time	Ten-thousand times	300
Rated operating frequency AC3	times/h	600
Rated operating frequency AC4	times/h	120
Short-time operatin	times/h	2000
Clearance between open contacts	mm	1.8±0.1			2.0±0.1
Over travel	mm	1.0±0.1			1.0±0.1		1.0±0.1
Contact circuit P/F. withstand voltage	kV	2
Closing time	ms	≤100
Opening time	ms	≤80