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) Primary current, measuring range IPM (mA) 100 200 400 VC IC RIS VOUT ROUT RL CL ± 180 ± 360 ± 720 Type RoHS since date code CT 0.1-P CT 0.2-P CT 0.4-P 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 46129 46054 46234 ± 15 ± 35 > 500 ±5 < 51 ≥ 10 ≤5 V mA MΩ V Ω kΩ nF 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 <±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 General data TA TS dCp dCl CTI m Ambient operating temperature Ambient storage temperature Creepage distance Clearance distance Comparative tracking index (Group IIIa) Mass Standards • 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. Advantages Accuracy-Dynamic performance data X Features - 20 .. + 85 °C - 25 .. + 85 °C > 5.5 mm > 5.5 mm > 220 25 g EN 50178: 1997 • 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 • Single phase or three phase differential current measurement up to ±30A per wire (DC or AC) Application Domain • Industrial copyright protected Page 1/3 061017/9 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Current Transducer CT 0.1 .. 0.4-P Isolation characteristics Vb Vb Vd Ve Vw Rated isolation voltage rms with IEC 61010-1 standard and following conditions - Single insulation - Over voltage category III - Pollution degree 2 - Heterogeneous field Rated isolation voltage rms with EN 50178 standard and following conditions - Reinforced insulation - Over voltage category III - Pollution degree 2 - Heterogeneous field Rms voltage for AC isolation test, 50 Hz, 1 min Partial discharge extinction voltage rms @ 10pC Impulse withstand voltage 1.2/50µs 150 V rms 250 V rms 2.5 > 1.2 6 kV kV kV If insulated cable is used for the primary circuit, the voltage category could be improved with the following table : Cable insulation (primary) Category HAR 03 300V CAT III HAR 05 400V CAT III HAR 07 500V CAT III Page 2/3 061017/9 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Dimensions CT 0.1 .. 0.4-P (in mm. 1 mm = 0.0394 inch) 20 11.0 30 Ø fø11 11 30 M GND -Vcc+Vcc 12.6 17.8 5±2 -Vcc +Vcc 2-F 2 2-Ø2 (NC) 4- 0.7 5±2 0. 5 0.5±0.3 M GND 4- 0.7 ± 0.3 17.8 ± 0.3 I +Vcc Ip flux-gate DC M transformer AC GND +Vcc +Vcc Vcc -Vcc GND 10.5 11 4.3 10. 5 −Vcc 20.3 GND M M 2-F 5 2-Ø5 ± 0.3 RL Vout Mechanical characteristics • General tolerance (Unless otherwise specified in • Aperture for primary conductor • Connection of secondary Recommended PCB hole • PCB fixation Recommended PCB hole ± 1 mm the above drawings.) Ø11 mm 4 pins 0.7 x 0.7 mm2 1.2 mm 2 pins Ø2 mm 2.2 mm Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the following manufacturer's operating instructions. Remarks Caution, risk of electrical shock • VOUT is positive when IP flows in the direction of the arrow. • This transducer induces into the primary circuit a square wave of 500Hz. This voltage can induce an AC current in the primary if the primary impedance is low. • Primary impedance ≥10Ω CT0.1-P CT0.2-P CT0.4-P VOUT by induced current ≤±0.5% ≤±0.4% ≤±0.2% of IPN • Temperature of the primary conductor should not exceed 100°C. When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a built-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. Page 3/3 061017/9 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com