Wago 5mm terminal block test plug adaptor awg 28 14 280 series wago 280 885 wago 280 885 5mm wide 4 conductor test plug adaptor shield terminal block colour blue for wire sizes awg 28 14 pack size 50 wago 280 885 5mm 4 cond test plug adaptor shield trm block blue awg 28 14 50pk