Dual 316 Stainless Steel Cabinet Cooler systems keep electrical enclosures cool with 20°F (-7°C) air while resisting heat and corrosion that could adversely affect the internal components. The wear, corrosion and oxidation resistance of Type 316 stainless steel assures long life and maintenance-free operation. The high-cooling capacity of up to 5,600 Btu/hr. is ideal for large electrical enclosures and high heat loads. Models with lower cooling capacities for NEMA 12, 4 and 4X enclosures are also available.