VAMP 52 - 9. Technical data; 9.1. Connections; 9.1.1. Measuring circuitry; 9.1.2. Auxiliary voltage

9.1 Connections 9 Technical data Technical description
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9. Technical data
9.1. Connections
9.1.1. Measuring circuitry
Rated current I
n
5 A (configurable for CT secondaries 1 – 10 A)
- Current measuring range 0…250 A
- Thermal withstand 20 A (continuously)
100 A (for 10 s)
500 A (for 1 s)
- Burden < 0.2 VA
Rated current I
0
5 A / 1 A (optionally 1 A / 0.2 A)
- Current measuring range 0…50 A / 10 A
- Thermal withstand 4 x I
0
(continuously)
20 x I
0
(for 10 s)
100 x I
0
(for 1 s)
- Burden < 0.2 VA
Rated voltage U
n
(only VAMP 52) 100 V (configurable for VT secondaries 50 – 120 V)
- Voltage measuring range 0 - 175 V
- Continuous voltage withstand 250 V
- Burden < 0.5 VA
Rated frequency f
n
45 - 65 Hz
- Frequency measuring range 16 - 75 Hz
Terminal block: Maximum wire dimension:
- Solid or stranded wire 4 mm
2
(10-12 AWG)
9.1.2. Auxiliary voltage
Type A (standard) Type B (option)
Rated voltage U
aux
40 … 265 V ac/dc
110/120/220/240 V ac
48/60/110/125/200 V dc
18…36 V dc
24 V dc
Power consumption < 7 W (normal conditions)
< 15 W (output relays activated)
Max. permitted interruption time < 50 ms (110 V dc)
Terminal block: Maximum wire dimension:
- Phoenix MVSTBW or equivalent 2.5 mm
2
(13-14 AWG)
9.1.3. Digital inputs
Internal operating voltage
Number of inputs 2
External operating voltage Threshold voltage selectable in order code:
A: 24 V dc
B: 110 V dc
C: 220 V dc
Current drain approx. 2 mA
Terminal block: Maximum wire dimension:
- Phoenix MVSTBW or equivalent 2.5 mm
2
(13-14 AWG)