Item no. 221-503 Mounting carrier; for 3-conductor terminal blocks; 221 Series - 4 mm²; for screw mounting; white1 of 2Color: Item no. 221-503 Mounting carrier Please wait ... Price and availability after LoginPlease wait ... PU (SPU): 50 (10) PieceAdd to shopping cartBuy it NowGenerate DatasheetDownloads as zipCompareBookmarkFind electrical wholesalers Item no. 221-503 Mounting carrier Please wait ... Price and availability after LoginPlease wait ... PU (SPU): 50 (10) PieceAdd to shopping cartBuy it NowGenerate DatasheetDownloads as zipCompareBookmarkFind electrical wholesalers