Technical Data
4.1 General Device Data
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
336
4.1.3 Binary Inputs and Outputs
Binary Inputs
Output Relay
Variant Quantity
7SK801/803/805/806 3 (configurable)
7SK802/804 7 (configurable)
Nominal Direct Voltage Range 24 V to 250 V
Current input, energized (independent of the control
voltage)
Approx. 0.4 mA
Pickup time
Response time of BO, triggered from BI
Approx. 3 ms
Approx. 9 ms
Dropout time
Response time of BO, triggered from BI
Approx. 4 ms
Approx. 5 ms
Secured switching thresholds (adjustable)
for nominal voltages 24 V to 125 V V high > 19 V
V low < 10 V
for nominal voltages 110 V to 250 V V high > 88 V
V low < 44 V
for nominal voltages 220 V and 250 V V high > 176 V
V low < 88 V
Maximum Permissible Voltage 300 V
Input interference suppression 220 Vdc across 220nF at a recovery time between two
switching operations ≥ 60 ms
Signal/command Relay, Alarm Relay
Quantity and data depending on the order variant (allocatable)
Order variant NO contact NO/NC selectable
7SK801/803/805/806 3 2 (+ 1 life contact not allocatable)
7SK802/804 6 2 (+ 1 life contact not allocatable)
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 %