Characteristics Of The Etu - Siemens SENTRON 3WL10 Series Manual

Description
2.4 Electronic trip unit ETU
2.4.2

Characteristics of the ETU

The electronic trip units are suitable for all common distribution board systems, protect any
power distribution system from overcurrents, and have settable overload and short-circuit
releases. Depending on the type, the ETU can monitor the energy consumption and signal
anomalies via alarms.
The modular expandable functions of the ETUs of the 6-series can replace external devices,
such as voltage transformers and measuring devices and power monitoring in one compact
device and therefore reduce costs and engineering work.
The electronic trip units of the 6-series can be replaced with a metering module and sense
anomalies such as transient interruptions, voltage spikes, and run network analyses. The
protection functions can be specifically adapted to the circumstances of the installation with
these expanded options and therefore ensure optimum protection. Directional quantities that
depend on the direction of power flow can also be included in measurement and protection.
With the electronic trip units of the 6-series, the circuit breaker can also be integrated into
communication networks.
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Air circuit breaker 3WL10
Manual, 11/2017, L1V30499596002-01