Wago accessories for 2003 series wago 2003 500 wago 2003 500 n 1 pole test plug adaptor for 2003 6641 and 2003 6640 multilevel installation terminal blocks colour grey for wire sizes awg 20 16 pack size 100 wago 2003 500 n 1 pole test adaptor for 2003 66401 grey awg20 16 100pk