Accessories for electrical enclosures aid in protecting, securing, and improving performance of electrical equipment. Interior mounting panels support and organize electrical components within an enclosure. Hole seals for electrical enclosures cover access holes to keep contaminants out and cool air in. Cable and pipe seals for electrical enclosures ensure safe connections for cables and pipes entering cabinets or enclosures. Window kits for electrical enclosures allow easy viewing of interior components. Electrical enclosure accessories and replacement parts improve security, functionality, and performance of enclosures.