Technical Data Easy Installation Description Gelbox, IPX8, 221 and 2273 Series, max. 4 mm² connectors, size 1 Gelbox, IPX8, 221 and 2273 Series, max. 4 mm² connectors, size 2 Gelbox, IPX8, 221 and 2273 Series, max. 4 mm² connectors, size 3 Gelbox, IPX8, 221 Series, max. 6 mm² connectors, size 1 Gelbox, IPX8, 221 Series, max. 6 mm² connectors, size 2 Gelbox, IPX8, 221 Series, max. 6 mm² connectors, size 3 Item Number Pack.