Detailed Relay Description
This thermal relay is suitable for using in power systems with AC 50Hz and
rated operation voltage up to 660V and 1,000V; and in main circuit, currents
from 0.1 to 630A. The current setting value can be regulated
and the setting current values of many thermal elements are in an
intercrossing, overlapping arrangement. It is used to protect AC three - phase asynchronous motors
against overload and open - phase. It works in temperatures
between -25° C and 55° C. The relay has the test pushbutton for breaking
NC contacts, operating indication, and free trip characteristics.
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