GN19-12 Indoor High Voltage AC Disconnect Switch – 12kV 60Hz Three-Phase Isolation Knife Switch for Power Distribution and Circuit Contro

GN19-12 Indoor High Voltage AC Disconnect Switch (12kV)

Product Overview

The GN19-12 and 12C series are high-performance indoor high-voltage disconnect switches (also referred to as isolation switches) designed for electrical systems with a rated voltage of 12kV and three-phase AC 60Hz. These devices are essential for safely dividing and closing circuits under voltage but no-load conditions. Due to their reliable performance and compact structure, they are widely utilized in power plants, transformer stations, and various industrial electrical systems.

Core Features & Technical Advantages

• Advanced Contact Technology: The contact knife is composed of two slotted copper plates, which increases the heat dissipation area to lower operating temperatures and improves mechanical strength.

• Enhanced Dynamic Stability: The dual-plate knife design provides superior dynamic stability during operation.

• Magnetic Locking System: Models rated for 1000A and 1250A are equipped with a magnetic locking plate to enhance contact attraction during large short-circuit currents.

• Robust Insulation: Features high-strength porcelain pillar insulators or epoxy resin support insulators for reliable dielectric performance.

• Flexible Installation: The rotating shaft extends beyond the bottom frame, allowing it to be connected to manual or electric operating mechanisms from either side.

• Versatile Design: Available as a standard three-pole parallel structure (GN19-12) or with wall-through porcelain casing insulators (GN19-12C).

Technical Specifications