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Example:
Start-up current of the motor 6.2 x FLA
Start-up time of the motor 11 s
One hot start allowed
Ambient temperature 40°C
At an ambient temperature of 40°C the internal FLA equals the FLA of the
motor. Thus, the start-up current of the motor is 6.2 x the internal FLA.
The safe stall time setting is calculated or selected from the trip curves at prior
load 1 x FLA. In the figure below, a safe stall time of 30 seconds is selected,
permitting a start-up time slightly longer than the one stated by the motor
manufacturer; see the figure below.
Motor Protection Relay
Technical Reference Manual - ANSI Version
REM 610REM 610
1MRS755537
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