Connection piece for a switch pole of a switching apparatus

The invention concerns a connection piece for a switch pole of a switching apparatus which improves the properties of the switch pole as concerns centring and current-carrying capacity. According to the invention, a connection piece (1) for a switch pole (16) of a switching apparatus is provided for connecting in electrically conductive manner to a movement contact connection pin (18) of a vacuum switching tube (17) disposed in the switch pole (16). The connection piece (1) comprises a centring ring (9) for centring the vacuum switching tube (17), the centring ring (9) being formed from an electrically conductive material and being connected in electrically conductive manner via connection means (14, 15) to a connection region (2) of the connection piece (1). 为了提供用于开关设备的开关极的连接块，开关极借助该连接块具有在定心和导电性能方面更好的特性，建议种用于开关设备的开关极(16)的连接块(1)，用来与设置在开关极(16)中的真空开关管(17)的动触头连接销(18)导电连接，连接块(1)具有用于定心真空开关管(17)的定心环(9)，定心环(9)由导电材料构成并且通过连接器件(14、15)与连接块(1)的连接区域(2)导电连接。