The Load Break Switch (LBS) is primarily used in padmount transformers. The LBS has been engineered and tested to reliably operate in both mineral and vegetal insulating oil. Sei’s LBS has been fully type tested to IEEE std C37.71. The LBS has two positions (open or closed) and can be 1 phase (deck) or 3 phases (decks). Sei's LBS is considered the most reliable product in the market.