Voltage Contactor CKG4 High Voltage Vacuum Contactor

CKG3-7.2kV 160A 250A 400A 630A AC High Voltage 3 Phase Vacuum Contactor PriceThe CKG3/4-7.2 series AC three-pole high voltage vacuum contactors are designed for 50Hz–60Hz power networks, with a rated voltage of 6.6kV or 7.2kV and a rated current up to 630A in the main circuit. These contactors are widely used for remote switching, frequent starting, and reliable control of AC motors in medium voltage systems.For enhanced protection and safe operation, the CKG3/4 vacuum contactors are often used in combination with fuses and protective relays, serving as a cost-effectiv...

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CKG3-7.2kV 160A 250A 400A 630A AC High Voltage 3 Phase Vacuum Contactor Price

The CKG3/4-7.2 series AC three-pole high voltage vacuum contactors are designed for 50Hz–60Hz power networks, with a rated voltage of 6.6kV or 7.2kV and a rated current up to 630A in the main circuit. These contactors are widely used for remote switching, frequent starting, and reliable control of AC motors in medium voltage systems.

For enhanced protection and safe operation, the CKG3/4 vacuum contactors are often used in combination with fuses and protective relays, serving as a cost-effective alternative to vacuum circuit breakers. Their compact design, stable performance, and long service life make them an ideal solution for motor control, transformer switching, and capacitor bank applications in modern power distribution networks.

Model	CKG-7.2/160	CKG-7.2/250	CKG-7.2/400	CKG-7.2/630
Rated Voltage (Main Electric Circuit)	7200 V	7200 V	7200 V	7200 V
Control Electric Circuit Voltage	220/110 V	220/110 V	220/110 V	220/110 V
Rated Current (A)	160	250	400	630
Main Contact Parameters
Contact Distance (mm)	3.5 ± 0.3	3.5 ± 0.3	3.5 ± 0.3	3.5 ± 0.3
Overtravel (mm)	2 ± 0.2	2 ± 0.2	2 ± 0.2	2 ± 0.2
Contact Pressure	>85 N	>85 N	>85 N	>85 N
Power Frequency Withstand Voltage (RMS)
Main Electric Circuit	32000 V	32000 V	32000 V	32000 V
Auxiliary Circuit	2500 V	2500 V	2500 V	2500 V
Control Electric Circuit	2000 V	2000 V	2000 V	2000 V

Model	Making Capacity	Breaking Capacity	Breaking Current (kA)	Electric Lifetime (Operations)	Mechanical Lifetime (Operations)	Weight (kg)
	10 Ie, 100 times	8 Ie, 25 times		AC-3: 60×10⁴ AC-4: 6×10⁴	100×10⁴
CKG-7.2/160	10 Ie, 100 times	8 Ie, 25 times	4.5	AC-3: 60×10⁴ AC-4: 6×10⁴	100×10⁴	25.5
CKG-7.2/250	10 Ie, 100 times	8 Ie, 25 times	4.5	AC-3: 60×10⁴ AC-4: 6×10⁴	100×10⁴	25.5
CKG-7.2/400	10 Ie, 100 times	8 Ie, 25 times	6	AC-3: 60×10⁴ AC-4: 6×10⁴	100×10⁴	25.5
CKG-7.2/630	10 Ie, 100 times	8 Ie, 25 times	6	AC-3: 60×10⁴ AC-4: 6×10⁴	100×10⁴	36

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Voltage Contactor CKG4 High Voltage Vacuum Contactor

Voltage Contactor CKG4 High Voltage Vacuum Contactor

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