Contact protection cover, universN, for UK21A1, spare part. Spare item, for retrofitting in a low-voltage distribution up to 1600A, rated voltage 3AC 690 V / 50Hz. Sealable contact protection covers as standard, reinforced using an internal gas pressure process with four quick-release bolts each. VDE mark approval according to DIN EN 61439-1/-2/-3 (VDE 0660 Part 600-1/-2/-3), dimensional standard: DIN 43870.