Transformer Vaults are available in 75, 112.5, 150, 225, 300, 500, 750, 1000, 1500 KVA sizes. These vaults are open bottom equipment foundations and provide excellent protection for any electrical equipment. These vaults are built to RUS specifications but work well for any electrical plant. Concrete provides a more rugged and cost effective ground sleeve / equipment foundations than alternative materials. These vaults can also be poured with custom lids to accommodate any electrical equipment from transformers to switch gear.