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Factory Supply Gn19-12 High Voltage Disconnecting Switch 12kv Indoor Isolator 630A 1250A. Visible clear fracture design, meet safety maintenance requirements, complete anti-misoperation mechanical interlock to prevent wrong operation. High-strength double-layer ceramic insulator, excellent insulation, anti-aging and anti-pollution performance, long service life. High-purity silver-plated copper contact, stable current carrying capacity, two specifications 630A / 1250A optional for 12kV switchgear.