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) 100 200 400 200 400 800 VC IC RIS VOUT ROUT RL CL 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= 10k , TA=25C Output internal resistance Load resistance Capacitive loading 46129 46054 46234 15 45 > 500 5 < 51 10 5 V mA M V k nF Accuracy (excluding offset) @ IPN, TA = 25C, RL = 10k Linearity error (0 .. IPN) Temperature coefficient of VOUT (of reading) Electrical offset voltage @ IP = 0, TA = 25C 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..+85C 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 L TCVOUT VOE VOH TCVOE tr BW <1 %of IPN < 0.5 %of IPN < 0.05 %/K < 100 mV <2 mV < 20 mV <8 mV/K <4 mV/K <2 mV/K 20 ms 60 ms DC 40..7000Hz DC 40..11000Hz DC 40..18000Hz 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 * Isolated 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 Notes : Performance data are given for steady phase of the transducer. Transitory period after power on lasts typically less than 2 min. Please refer to characterization report for details. * Small size * Bandwidth : DC and 40 up to 7..18 kHz * 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 Please don't put the high voltage between the secondary pins and fixing pins. If it must be so, don't exceed the 2.5 kV between these pins with the maximum isolation distance. 080909/14 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. copyright protected Page 1/3 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 1.2/50s 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 Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the manufacturer's operating instructions. Caution! Risk of electrical shock 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 2/3 080909/14 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 12.6 4- 17.80 2- 0.7+/-0.3 5+/-2 0.50 +/-0.3 30 11 30 2+/-0.3(NC) I + Vcc Ip flux-gate DC M transformer AC GND - Vcc + Vc c -Vc c GND 10.5 20.3 4.3 M Vo u t Mechanical characteristics Remarks * General tolerance * VOUT is positive when IP flows in the direction of the arrow. * This transducer induces into the primary circuit a square 1 mm (Unless otherwise specified in the above drawings.) * Aperture for primary conductor O11 mm * Connection of secondary 4 pins 0.7 x 0.7 mm2 Recommended PCB hole 1.2 mm * PCB fixation 2 pins O2 mm Recommended PCB hole 2.2 mm wave of 500Hz. This voltage can induce an AC current in the primary if the primary impedance is low. * Primary impedance 10 CT 0.1-P CT 0.2-P CT 0.4-P VOUT by induced current 0.8% 0.5% 0.3% of IPN * Temperature of the primary conductor should not exceed 100C. Page 3/3 080909/14 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com