Basler Electric BE1-50/51B-235 - Manual (Page 13)

9252000898 Rev B BE1-50/51B-235/-236 General Information 1-3
Instantaneous Overcurrent A (50-A) Element
Setting Range: 2 to 99 Aac
BE1-50/51B-235 Pickup
Setting increment: 1 Aac
Accuracy: Sum of ±2% and ±25 mAac
Setting Range: 0.4 to 19.8 Aac
BE1-50/51B-236 Pickup
Setting increment: 0.2 Aac
Accuracy: Sum of ±2% and ±5 mAac
Dropout occurs at 95% of pickup value.
Dropout
Switch selectable—no intentional delay (SW3-2 OFF) or a fixed delay of 100 ms (SW3-2 ON). Appendix
A, Characteristic Curves illustrates the characteristic curve for the 50-A and 50-B elements.
Time Delay
Instantaneous Overcurrent B (50-B) Element
Setting Range: 1 to 15.9 Aac
BE1-50/51B-235 Pickup
Setting increment: 0.1 Aac
Accuracy: Sum of ±2% and ±25 mAac
Setting Range: 0.2 to 3.18 Aac
BE1-50/51B-236 Pickup
Setting increment: 0.02 Aac
Accuracy: Sum of ±2% and ±5 mAac
Dropout occurs at 95% of pickup value.
Dropout
Fixed at no intentional delay. Appendix A, Characteristic Curves illustrates the characteristic curve for the
50-A and 50-B elements.
Time Delay
Resets within 16 ms of when sensed current decreases below the pickup level.
Reset Characteristic
Current Sensing Input
Continuous Rating: 14 Aac∗
BE1-50/51B-235
1 Second Rating: 400 Aac
∗ Continuous rating is 14 Aac for temperatures up to 45°C. See Figure 1-1 for derating curve.