Wago din rail terminal block multi level 52mm green yellow 46 conductors wago 2002 2237 wago 2002 2237 pe double deck 4 conductor ground din rail mount terminal block colour green yellow for wire sizes awg 22 12 pack size 50 wago 2002 2237 pe 2 deck 4 conductor ground t block green yellow awg 22 12 50pk