The utility model relates to a multitap low pressure nuclear phase ware, the coaxial suit of dismantling there is a sleeve on the axostylus axostyle, this telescopic rear portion demountable installation has a back lid, the back lid with the end of axostylus axostyle passes through threaded connection after cover and has seted up the through -hole the winding has the wire on the axostylus axostyle, and the one end of wire is connected the connector, the through -hole connector contact handle of covering after the other end passes there is a first plug through first external screw thread demountable installation on the connector there is the second plug through second external screw thread demountable installation on the contact handle. The utility model discloses simple structure, design scientific and reasonable pass through the multitap low pressure nuclear phase ware device of developing, can be equipped with the plug of many specifications to the nuclear phase is decided to the switch board that is applicable to different models, is satisfying under the condition of function, realizes a device repetitious usage's advantage effect, convenient maintenance and change, and effective save time cost improves work efficiency.