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PM 1001606 000 07
Device handbook CENTRAX CU3000-CU5000
78/106
I/O interface
via plug-in terminals
Linearization:
Linear, kinked
Range:
± 20 mA (24 mA max.), bipolar
Uncertainty:
± 0.2% of 20 mA
Burden:
≤ 500 Ω (max. 10 V / 20 mA)
Burden influence:
≤ 0.2%
Residual ripple:
≤ 0.4%
Response time:
220…420 ms
via plug-in terminals
Contact:
changeover contact
Load capacity:
250 V AC, 2 A, 500 VA
30 V DC, 2 A, 60 W
via plug-in terminals
Nominal voltage
12 / 24 V DC (30 V max.)
Input current
< 7mA
Logical ZERO
- 3 up to + 5 V
Logical ONE
8 up to 30 V
Minimum pulse width
70…250ms
via plug-in terminals
Open circuit voltage
≤ 15V
Short circuit current
< 15mA
Current at R
ON
=800
Ω
≥ 2 mA
Minimum pulse width
70…250ms
via plug-in terminals
Nominal voltage
12 / 24 V DC (30 V max.)
Nominal current
50 mA (60 mA max.)
Load capability
400 Ω … 1 MΩ
via plug-in terminals
Number of channels
2; each channel provides two measurement ranges (2mA, 1A)
Zero suppression
Measurement < 0.2% of measurement range
Measurement range 1A
Application:
Direct measurement of a fault or earth wire current
Measurement transformer: Current transformer 1/1 up to 1000/1A
Instrument security factor FS5
Rated output 0.2 up to 1.5 VA
Measurement range:
I
Rated
= 1.0A (max. 1.2A; crest factor 3)
Overload:
2A continuous; 20A, 5 x 1s, interval 300s
Self-consumption:
≤ I2 x 0.1 Ω
Monitoring:
Alarm limit 0.03 … 1000 A (2 up to 100% of primary measurement range)
Measurement range 2mA
Application:
Residual current monitoring (RCM)
Measurement transformer: Residual current transformer 500/1 up to 1000/1A
Rated burden
100 Ω / 0.025 VA up to 200 Ω / 0.06 VA
Measurement range:
I
Rated
= 2mA (max. 2.4mA; crest factor 3)
Overload:
40mA continuous; 200mA, 5 x 1s, interval 300s
Self-consumption:
≤ I2 x 64 Ω
Monitoring:
Alarm limit 0.03 … 1 A