A three-phase encapsulated high-voltage (HV) circuit-breaker for outdoor applications, has its interrupter units arranged in a horizontal, tubular switch-housing (1) from which are vertically brought out the line terminals (21,22) of the interrupter units (2) in common, and each is taken through a connection flange (6,7). Each connection flange (6,7) has a distribution/allocation module (12,13) equipped with outdoor bushings and each line connection (21,22) is assigned a measuring current transformer (17,18). The measuring current transformers (17,18) are positioned inside the switch-housing (1) and moreover are fixed suspended on the respective distribution/allocation module (12,13).
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