4.1 General
295
7UM61 Manual
C53000-G1176-C127-3
4.1 General
4.1.1 Analog Inputs/Outputs
Current Inputs
Voltage Inputs
4.1.2 Auxiliary Voltage
DC Voltage
Rated system frequency f
N
50 Hz or 60 Hz (adjustable)
Rated current I
N
1 A or 5 A
Earth Current, Sensitive I
Ns
≤ linear range 1.6 A
Burden per Phase and Earth Path
- at I
N
= 1 A Approx. 0.05 VA
- at I
N
= 5 A Approx. 0.3 VA
- for Sensitive Earth Fault Detection at 1 A Approx. 0.05 VA
Current Path Loadability
- Thermal (rms) 100· I
N
for 1 s
30· I
N
for 10 s
4· I
N
continuous
- Dynamic (peak value) 250 · I
N
(Half-cycle)
Loadability Input for Sensitive Earth Fault Detection I
EE
- Thermal (rms) 300 A for 1 s
100 A for 10 s
15 A continuous
- Dynamic (peak value) 750 A (Half-cycle)
Secondary nominal voltage 100 V to 225 V
Measuring range 0 V to 170 V
Burden at 100 V Approx. 0.3 VA
Voltage path overload capacity
- Thermal (rms) 230 V continuous
Voltage supply using integrated converter
Rated auxiliary DC voltage U
Aux
24/48 V DC 60/110/125 V DC
Admissible voltage ranges 19 to 58 V DC 48 to 150 V DC
Rated auxiliary DC U
Aux
110/125/220/250 V DC
Admissible voltage ranges 88 to 300 V DC
superimposed AC ripple voltage,
peak to peak, IEC 60 255–11
≤15 % of the auxiliary voltage
Power input
7UM611 quiescent approx. 4 W
7UM612 approx. 4.5 W
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