Ckg3 Series Vacuum Contactor for Mining Machinery

• Type: Power
• Operation Voltage: Low Voltage
• Feature: Practical and Durable
• Control Voltage: 110V/220V/380V
• Mechanical Life: 3000000
• Package: Carton and Pallet
• Model NO.: CKJ5-1.14KV/250A
• Main Circuit P.F. Withstand Voltage: 1.14kv
• Transport Package: Carton and Pallet
• Trademark: Liyond
• Origin: Wenzhou, China
• Production Capacity: 2000/Month

Product Description

Vacuum Switch Tube Contactors

Product Description

This series of contactors, manufactured by Yueqing Liyond Electric Co., Ltd., utilizes vacuum switch tubes as arc extinguishing components. These contactors offer the following key features:

• No arc flash


• Long life


• No noise


• Small size


• Safe and reliable

They are designed for use in AC power networks with a frequency of 50/60 Hz and a rated operating voltage of 1140 volts. These contactors are suitable for connecting and disconnecting circuits and can be combined with thermal relays, electronic protection devices, and other related protection devices to form an electromagnetic starter. They are particularly well-suited for creating explosive electromagnetic starters and various power control panels. These contactors are ideal for industries such as coal, petroleum, chemical, metallurgy, machinery, transportation, and power.

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