4 Technical Data
458
7UT613/63x Manual
C53000-G1176-C160-2
Operating Times of the Definite Time Stages
Dropout to Pickup Ratios
Frequency
Dropout times of the thermal curve
Figure 4-13 Trip times of the Thermal Characteristic for Unbalanced Load Protection
Pickup time / dropout time
Pickup time at frequency 50 Hz 60 Hz 16.7 Hz
minimum
1
) 41 ms 34 ms 106 ms
Dropout time, approx. 23 ms 20 ms 60 ms
1
) for high-speed relays, the pick-up times decrease by 4.5 ms
Current stages approx. 0.95 for I
2
/I
N
≥ 0.5
Frequency influence within the frequency tagging range
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