Installation switching device with a current sensing unit

摘要

An exemplary installation switching device includes such as a circuit breaker, residual current circuit breaker or motor circuit breaker, a housing, and at least one current path that passes through an internal conductor between at least one input terminal and at least one output terminal. The installation switching device also includes a current sensing unit inside the housing having an interface with at least two data connections and at least two power connections. The housing has an interface opening that is capable of accepting a connecting fixture for connecting the current sensing unit to a bus located outside the installation switching device and containing data and power lines such that the current sensing unit is electrically isolated from the current path and is supplied with power from outside the installation switching device.

主权项

1. An installation switching device, comprising:
a housing; a current path, which passes through an internal conductor between at least one input terminal and at least one output terminal; and a current sensing unit arranged inside the housing, the current sensing unit having an interface with at least two data connections and at least two power connections, wherein the housing has an interface opening which is configured to accept a connecting fixture for connecting the current sensing unit to a bus containing data and power lines, and wherein the bus is located outside the installation switching device such that the current sensing unit is galvanically isolated from a current path and is supplied with power from outside the installation switching device.