General Device Data
303
7SS52 V4 Manual
C53000-G1176-C182-1
9.2 General Device Data
9.2.1 Analog Inputs and Outputs
Rated frequency f
N
50 Hz or 60 Hz (settable)
Current inputs Rated current I
N
1A or 5A
Thermal overload capability of current path
– continuous 4 × I
N
– for 10 s 30 × I
N
– for 1 s 100 × I
N
Dynamic overload capability (1 half-cycle) 250 × I
N
Power consumption
–at I
N
= 1A 0.1VA
–at I
N
= 5A 0.2VA
9.2.2 Rated Auxiliary Voltage
Rated auxiliary voltage U
aux
– Central unit DC 48/60, 110/125, 220/250 V
– Bay unit DC 48 to 250 V
Permissible tolerance
of rated auxiliary voltage U
aux
± 20%
Max. ripple ≤ 15%
Power consumption
(dependent on station configuration)
Quiescent
– Central unit 70 to 120 W
– Bay unit 12 W [10]
1)
Energized
– Central unit 75 to 135 W
– Bay unit 16 W [14]
1)
Bridging time during failure /
short circuit of auxiliary voltage ≥ 50 ms (at U
aux
≥ 60 V)
1)
Values in brackets [ ] for Bay unit 7SS525
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