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Does ATS48 (alone) protect against short Circuit ?

ATS48 does not protect from short circuit fault (i.e. a breaker has to installed for short circuit protection), 

The protection functions provided by the ATS48 are below :

v built-in motor thermal protection,
v processing of information from PTC thermal probes,
v monitoring of the starting time,
v motor preheating function,
v protection against underloads and overcurrents during continuous operation.

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