Wago double deck 1 and 2 conductor din rail terminal blocks 2022 series wago 2022 2231 wago 2022 2231 ll double deck 1 conductor throughthrough carrier din rail mount terminal block colour grey for wire sizes awg 22 12 pack size 1 wago 2022 2231 ll dbl deck 1 conductor through carrier t block grey awg 22 12