Product Details

CKJ50 1000A, 1250A Vacuum Contactors

CKJ50-1000A/1140V and CKJ50-1250A/1140V series AC Vacuum Contactor is applicable for AC 50HZ power system of rated voltage 1.14KV and rated current up to 1000 A and 1250A to open and close circuit, start and control AC motor frequently. It is suitable for composed magnetic starter with various protective devices and compose a explosion-proof magnetic starter and large mineral Switchgear.

Type	Unit	CKJ50-1000A/1140V	CKJ50-1250A/1140V
Rated voltage	KV	1.14	1.14
Rated current	A	1000	1250
Making capacity	A	5000（100 times）
Breaking capacity	A	4500（10 times）
Limit breaking capacity	A	5000（3 times）
Electrical life times(AC3)	times	600,000
Electrical life times(AC4)	times	6,000
Mechanical life times	times	1,000,000
Rated operating frequency (AC3)	times /h	600
Rated operating frequency (AC4)	times /h	120
Short-time operating frequency（20s）	times /h	1000
Contacts separation	mm	2.8±0.1
Over travel	mm	1.0±0.1