Shop 20 cal arc flash kits for head to toe level 2 protection. FRSafety offers arc rated kits that contain all the PPE you need to stay safe and compliant. ... FR Clothing > Arc Flash PPE > Arc Flash Kits > 20 cal Arc Flash Kits: 20 cal Arc Flash Kits. 20 cal/cm² Arc Flash Kit with FR Coverall (KIT2CV20) ... Arc Rating: ATPV 25 cal/cm² ...