ZW32-12 Outdoor High-Voltage AC Vacuum Circuit Breaker

The ZW32-12 outdoor high-voltage AC vacuum circuit breaker is designed for outdoor high-voltage distribution systems with a rated voltage of 12kV and three-phase AC 50Hz. It is suitable for substations and industrial and mining enterprise distribution systems below 1000m altitude. The breaker is used to interrupt and close load currents, overload currents, and short-circuit currents in the power system for protection and control. It is also suitable for rural power grids and locations requiring frequent operations.

The ZW32-12 conforms to Chinese standards GB 1984-2014 (High-Voltage AC Circuit Breakers), JB/T 3855-2008 (High-Voltage AC Vacuum Circuit Breakers), and DL/T 403-2000 (Technical Requirements for 12kV–40.5kV High-Voltage Vacuum Circuit Breakers).

Product Features:
♦ Integrated structural design – The three-phase pole and primary electrical components are integrated with the operating mechanism box, creating a unified and innovative structure.

♦ Three-phase pole structure – Provides stable and reliable breaking performance, no risk of fire or explosion, maintenance-free, compact size, lightweight, and long service life.

♦ Vacuum interrupter – Fully sealed solid structure, moisture-proof and condensation-resistant, ideal for high-temperature and humid areas.

♦ Three-phase poles and current transformers – Made using outdoor epoxy resin or silicone rubber casting, offering high insulation, resistance to extreme temperatures, UV resistance, and anti-aging properties.

♦ Operating mechanism – Can be either a compact spring operating mechanism or a permanent magnet type. Uses direct transmission with few components, low operating energy, and high reliability. The mechanism is housed in a sealed box to prevent rust and improve reliability.

♦ Operation flexibility – Can be operated manually, electrically, or via remote control. Compatible with controllers for distribution automation or reclosing functionality.

♦ Current transformers – Can be equipped with two-phase or three-phase CTs for overcurrent automatic trip protection and intelligent controller analysis.

♦ Isolation switches – Can be configured with single-side or double-side isolation blades, providing safety during maintenance.