(CT0.1-P - CT0.4-P) Current Transducers
Description
Current Transducers CT 0.
1 .
.
0.
4-P
For the electronic measurement of small currents: AC,DC, mixed, with a galvanic isolation between the primary circuit and the secondary circuit.
IPN = ± 100.
.
400 mA VOUT = ± 5 V
Electrical data
Primary nominal current rms IPN (mA) 100 200 400 Primary current, measuring range IPM (mA) ± 180 ± 360 ± 720 Type RoHS since date code 46129 46054 46234
Features
• DC & AC earth leakage current transducer using a flux-gate principle • PCB mounting • ±15V power supply • ±5V output @ IPN • Insulated plastic case recognized
according to UL94-V0.
CT 0.
1-P CT 0.
2-P CT 0.
4-P
VC IC RIS VOUT ROUT RL CL
Supply voltage (± 5 %) Current consumption Isolation resistance @ 500 VDC Output voltage (Analog) @ ± IPN, RL= 10kΩ , TA=25°C Output internal resistance Load resistance Capacitive loading
± 15 ± 35 > 500 ±5 < 51 ≥ 10 ≤5
V mA MΩ V Ω kΩ nF
Accuracy-Dynamic performance data
X
Advantages
<±1 %of IPN < ± 0.
5 %of IPN < ± 0.
05 %/K < ± 50 mV <±2 mV < ± 20 mV <±4 mV/K <±3 mV/K <±2 mV/K ≤ 20 ms ≤ 60 ms DC .
.
7000 Hz DC .
.
11000 Hz DC .
.
18000 Hz
ε
L
TCVOUT VOE VOH
TCVOE
tr BW
Accuracy (excluding offset) @ IPN, TA = 25°C, RL = 10kΩ Linearity error (0 .
.
± IPN) Temperature coefficient of VOUT (of reading) Eletrical offset voltage @ IP = 0, TA = 25°C Hysteresis offset voltage @ IP = 0; after an excursion of 1 x IPN @ IP = 0; after an excursion of 100 x IPN Temperature coefficient of VOE @ -20.
.
+85°C CT 0.
1-P CT 0.
2-P CT 0.
4-P Response time to 80% of IPN step 90% of IPN step Frequency bandwidth (- 3 dB) CT 0.
1-P CT 0.
2-P CT 0.
4-P
• Small size • Bandwidth : DC .
.
up to 18kHz • Response time better than 60 ms • Cost effective, compact alternative to classical RCDs (Residual Current Device)
Applications
• Earth leakage detection in transformerless solar inverters • 1st human contact protection of PV arrays • Failure detection in power sources • Symmetrical fault detection (e.
g.
after motor inverter) • Current leakage detection in stacked DC sources ...
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