Technical Data
4.1 General Device Data
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
284
4.1.3 Binary Inputs and Outputs
Binary Inputs
Output Relay
Variant Quantity
7SD80 3, 5, 7 (configurable) depending on ordering code
Range of rated direct voltage 24 V to 250 V
Current input, energized (independent of the control
voltage)
approx. 0.4 mA
Pickup time
Response time binary output after trigger signal
from binary input
approx. 3 ms
approx. 9 ms
Dropout time
Response time binary output after trigger signal
from binary input
approx. 4 ms
approx. 5 ms
Secured switching thresholds (adjustable)
For rated voltages DC 24 V to 125 V V high > DC 19 V
V low < DC 10 V
For rated voltages DC 110 V to 250 V V high > DC 88 V
V low < DC 44 V
For rated voltages DC 220 V and 250 V V high > DC 176 V
V low < DC 88 V
Maximum admissible voltage 300 V DC
Input interference suppression 220 V induced above 220nF at a recovery time between
two switching operations ≥ 60 ms
Signal/command relay, alarm relay
Quantity and data depending on the order variant (configurable)
Order variant NO contact Changeover contact
7SD80 5, 8 depending on
ordering code
2 (+ 1 life contact not configurable)
Switching capability MAKE 1000 W / 1000 VA
Switching capability BREAK 40 W or 30 VA at L/R ≤ 40 ms
Switching voltage AC and DC 250 V
Permissible current per contact (continuous) 5 A
Permissible current per contact (close and
hold)
30 A for 1 s (NO contact)
Interference suppression capacitor at the relay
outputs 2.2 nF, 250 V, ceramic
Frequency Impedance
50 Hz 1.4· 10
6
Ω ± 20 %
60 Hz 1.2· 10
6
Ω ± 20 %
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