Issue February 2002
Document Number: 13124
- 33 -
8. Technical Data
8.1. Measuring circuit
Voltage range : 58 V to 690 V, stepless
Current range : 25 mA to 5 A
Frequency : 50 Hz (60 Hz upon request)
Input filter : each measuring circuit is provided with a band-pass filter
Voltage connection : phase to phase or phase to neutral
Current power input : 1 VA maximum
Galvanic separation : potential-free connection with both measuring circuits
Current continuous overloading : 20% maximum
Current transformer : x/5A or x/1A, category 1
Precision U-I : 1%
Precision harmonic current : The accuracy of harmonic current measurement is better
than 90 %.
8.2. Control circuit
Number of steps : 6 or 12 steps
Switching delay time : a function of reactive load (2 to 500 seconds) or,
settable to 10, 30, 60, 120, 180, 300, 500 seconds
Re-switching blocking delay time : settable to 20, 60, 180, 300 seconds
Relay contact load-bearing capacity : 5A/265VAC, the contact is bridged with a 47 nF
anti-interference capacitor
8.3. Monitoring
Watchdog : monitoring correct function of the processor
Temperature : monitoring ambient temperature
Alarm relay : can be programmed with various alarm functions
Display : showing symbols for the various types of faults
Harmonic current : alarm signal
No-voltage release : all capacitor steps will be switched out immediately upon
interruption of supply voltage. Switching-in can take place
only after the re-switching blocking delay has elapsed.
8.4. Electrical connection
Operating voltage : 230VAC ±15%, 50Hz (60Hz and/or 120VAC upon request)
Power input : 8W maximum
Instrument fuse : 100mA tr. 5 x 20 mm, inside the device
Connection : via 20-poles (PFC12: an additional 6-poles) multipoint
connectors, 2.5 mm², rigid or flexible cable
Interface : RS232, 3-poles multipoint connector
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