LW36-126 SF6 Circuit Breaker – High-Performance, Eco-Conscious Medium-Voltage Protection

The LW36-126 SF6 Circuit Breaker is a state-of-the-art, single-pressure, puffer-type high-voltage switchgear designed for reliable operation in 126kV transmission and distribution systems. Combining advanced arc-quenching technology with a sealed-for-life SF6 gas system, it delivers exceptional interrupting performance, minimal maintenance, and long service life—ideal for substations requiring high operational safety and grid stability.

Engineered with a compact, three-phase-in-one-tank structure, the LW36-126 reduces footprint and installation complexity while maintaining robust dielectric strength. Its spring-operated mechanism ensures consistent tripping and closing even under fluctuating control voltages, and the hermetically sealed enclosure prevents moisture ingress and gas leakage over decades of service.

• Compact 126kV SF6 breaker – space-saving design ideal for urban and indoor substations

• Low-maintenance high-voltage switchgear – sealed-for-life construction minimizes servicing needs

• Eco-efficient SF6 interruption technology – optimized gas usage aligns with environmental best practices

This circuit breaker complies with IEC 62271-100 and GB/T 1984 standards, supporting rated short-circuit breaking currents up to 40kA. It features integrated monitoring readiness for smart grid applications and operates reliably across -40°C to +40°C ambient temperatures. With its corrosion-resistant aluminum housing, modular design, and rapid arc extinction capability, the LW36-126 offers utilities a future-ready solution that balances performance, sustainability, and total cost of ownership in modern power networks.