ABB REF542plus - 9 Technical Data; Analog Input Channels; With Current and Voltage Transformer; With Current and Voltage Sensor

REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 58 / 80
9 Technical data
9.1 Analog input channels
Accuracy for measurement including the current/voltage sensors class 1.
Accuracy for protection class 3
9.1.1 With current and voltage transformer:
Rated current In 1A or 5A
Rated voltage U
n
: 100V (also suitable for 110V)
Rated frequency f
n
: 50 Hz / 60 Hz
Thermal load capacity
Current path 250 I
n
(peak value) dynamic,
100 I
n
for 1s,
4 I
n
continuous,
Voltage path
2 U
n
/√3 continuous.
Consumption
Current path
≤ 0.1 VA with I
n
Voltage path
≤ 0.25 VA with U
n
9.1.2 With current and voltage sensor
Rated current I
n
150 mV (rms)
Rated voltage U
n
: 2V (rms)
Rated frequency f
n
: 50 Hz / 60 Hz