The LW16-40.5 outdoor SF6 circuit breaker is designed for use in a 50 Hz three-phase AC power system and is suitable for control and protection in industrial enterprises, power plants, and substations. This product is capable of frequent operations and can be used as a link circuit breaker and for switching capacitor banks or reactor banks. The internal current transformers can be used for measurement and protection. It can directly replace the SW2-35 oil circuit breaker and, with the addition of an overcurrent bracket, can replace various models of oil circuit breakers. It is an ideal oil-free circuit breaker for 35 kV power systems.

Note: When the circuit breaker is in hot standby mode, surge arresters must be installed on the fault side of the breaker.

Main Technical Parameters of Circuit Breaker

Notes:

O: Open operation 

CO: Close-Open operation 

s: Seconds 

ppm: Parts per million 

CT: Current Transformer configuration 

Formatting Consistency:

• Values with tolerances (e.g., ±0.015) and conditional parameters (e.g., reclosing/single separation) are explicitly stated.   

• Units standardized (e.g., “kV” for kilovolts, “MPa” for megapascals).   

• Scientific notation corrected (e.g., “≤150×10⁻⁶” instead of “X10-6”).   

• Combined entries (e.g., tripping time under different voltages) are merged for clarity.