4027 AC Isolation Cover - 5-1/4 x 7-1/2x3Features:. Provides electrical insulation for exposed panel backs. Provides mechanical protection for panel backs protruding into lockers. Lightweight material is easily drilled for wire entrance and exit. Meets ABYC requirements for panels with combined AC and DC. Covers a panel, or other object, 7-1/2" long x 5-1/4" wide, x 3" deep. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.