POWER METER

摘要

A power meter provided with a main unit (1) and a plurality of expansion units (2). The main unit (1) has a unit body (10) provided with a plurality of recesses (12A) in which a plurality of connectors (3) and a plurality of screw terminals (4) are accommodated. Each expansion unit (2) has a unit body (20) provided with a plurality of recesses (22A) in which a plurality of connectors (3) and a plurality of screw terminals (4) are accommodated. In this power meter, because the plurality of connectors (3) and the plurality of screw terminals (4) are disposed divided into the recesses (12A or 22A), it is easy to determine the connection point when a worker or a maintenance inspector connects a current transformer, resulting in improved operability.