Product details

CKG4 12KV Vacuum Contactor

The CKG4 vacuum contactor is a high-voltage electrical device suitable for power systems of 12kV, with a rated current range of 160A to 630A. It utilizes vacuum arc extinguishing technology, offering high reliability, long service life, compact size, lightweight design, and low maintenance costs. It is widely used in industrial power systems, substations, and mining applications.

Specification

Model	GKG4-160A/12KV	GKG4-250A/12KV	GKG4-400A/12KV	GKG4-630A/12KV
Main circuit rated voltage (kV)	12	12	12	12
Main circuit rated current (A)	160	250	400	630
Main circuit current making ability (A/100Ops.)	1600	2500	4000	6300
Main circuit break-make ability (A/25Ops.)	1280	2000	3200	5000
Maximum break ability (A/3Ops.)	3200	3200	4000	6300
Mechanical life (Ops.)	1,000,000	1,000,000	1,000,000	1,000,000
Mechanical lock life (Ops.)	100,000	100,000	100,000	100,000
Power-frequency withstand voltage for main circuit (kV)	42	42	42	42
Power-frequency withstand voltage for auxiliary circuit (kV)	2.5	2.5	2.5	2.5
Power-frequency withstand voltage for control circuit (kV)	2	2	2	2
Rated operating frequency (Ops./h)	300	300	300	300
Mechanical lock operating frequency (Ops./h)	30	30	30	30
Clearance between open contacts (mm)	5±0.5	5±0.5	5±0.5	5±0.5
Over travel (mm)	≥1.2	≥1.2	≥1.2	≥1.2