Rev.17
46/119
5.
MONITORING AND CONTROL
5.1.
Measurements
Measurements of the thermal image, three-phase currents, neutral current and maximum
current are given in RMS. A sampling, of 16 samples/cycle, is performed.
The accuracy of the measurement is ±2% over a band of ±20% of rated current and ±4% over
the rest of the measurement range.
Below are the phase and neutral measurement ranges of the SIAF models. There values are
understood as secondary current:
Model
Phase range
Neutral
range
Phase
rated
current
Neutral
rated
current
SIAF5*
1-150 A
*
5 A
*
SIAF1*
0,2-30 A
*
1 A
*
SIAF*5
*
1-150 A
*
5 A
SIAF*1
*
0,2-30 A
*
1 A
SIAF*B
*
0,04-6 A
*
0,2 A
•
Frequency
50 Hz or 60 Hz rated. ± 3 Hz
5.2.
Counters
The SIA-F stores in non-volatile RAM memory:
•
Breaker opening number
•
Accumulated amperes (I2t) during the breaker opening
Summary of Contents for SIA-F
Page 7: ...www fanox com Rev 17 7 119 2 DIMENSIONS AND CONNECTION DIAGRAMS 2 1 Frontal view...
Page 8: ...www fanox com Rev 17 8 119 2 2 Case dimensions The dimensions are in mm CUT OUT PATTERN...
Page 9: ...www fanox com Rev 17 9 119 2 3 Connection diagram 3 Phase CT and neutral CT Connection...
Page 10: ...www fanox com Rev 17 10 119 3 Phase CT and residual neutral Connection...
Page 34: ...www fanox com Rev 17 34 119...
Page 35: ...www fanox com Rev 17 35 119...
Page 36: ...www fanox com Rev 17 36 119...
Page 118: ...www fanox com Rev 17 118 119 NOTES...
Page 119: ...www fanox com Rev 17 119 119...
