CES and CESD Factory Sealed 30 and 60 A Pin and Sleeve Receptacles offer explosionproof protection for stationary or portable equipment used in hazardous locations. The Slide-Lok™ feature enforces a three-stage power insertion process to prevent unintended power up or accidental disconnect. Factory sealed and constructed of triple coated malleable iron with copperfree aluminum cover, these receptacles are designed for rugged and reliable performance.