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13. Curves
13.1 Trip class "P"
Fig. 25 Curves for trip class "P"
The trip delay indicates the maximum period of time
during which the overload condition is allowed to
exist, for example 5 seconds.
Example:
A pump is to cut out after 900 ms because the rated
current has been exceeded.
• Select trip class "P".
• Set the overload limit to 10 A (the rated motor cur-
rent is stated on the nameplate).
• Set the trip delay to 900 ms.
Fig. 25, curve 1:
The pump has an abnormal start-up time, and the
current exceeds 10 A. The MP 204 trips after
900 ms.
Fig. 25, curve 2:
The pump has a normal start-up time, and the cur-
rent exceeds 10 A only briefly (< 900 ms). The
MP 204 does not trip.
Note: The curves are examples and cannot be used
for readings.
TM03 0812 1205
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