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| AC Current transducer APR-B420L Split core transducer for the electronic measurement distorted AC waveforms current, with galvanic isolation between the primary circuit (power) and the secondary circuit (measurement). Switch selectable ranges and True RMS 4-20mA current output. IPN = 10 .. 400 A Electrical data Primary Nominal Current IPN (A.t.rms) 10,25,50 50,75,100 100,150,200 200,300,400 Output Current IOUT (mA) 4-20 4-20 4-20 4-20 Type APR APR APR APR 50 B420L 100 B420L 200 B420L 400 B420L RoHS since date code planned planned 46317 46291 Features * VFD and SCR waveforms current measurement * True RMS output * Split core type * Loop powered 4-20mA current output * DIN mounting & Panel mounting * Eliminates insertion loss * Switch selectable ranges * Isolated plastic case recognized according to UL94-V0. RL VC ISL IP Load resistance (See the graph "Load Resistance vs. Supply Voltage") < 350 Supply voltage (loop powered) + 12 .. 24 V DC Output current limitation < 25 mA Overload capability no limitation Accuracy-Dynamic performance data Advantages < 1 % of IPN < 0.5 % of IPN 4 mA 1 A/K 0.1 %/K < 400 ms 30 .. 6000 Hz * Large aperture for cable up to O18mm * High isolation between primary and secondary circuits * Easy installation X L IOE TCIOE TCIOUT tr BW Accuracy @ IPN, TA = 25C (excluding offset) Linearity error (0 .. IPN) Electrical offset current @ TA = 25C Temperature coefficient of IOE Temperature coefficient of IOUT (% of reading) Response time to 90% of IPN step Frequency bandwidth ( 1 %) Applications * VFD Controlled Loads: VFD output indicates how the motor and attached load are operating. * SCR Controlled Loads: Acurate measurement of phase angle fired or burst fired (time proportioned) SCRs. Current measurement gives faster response than temperature measurement. * Switching Power Supplies and Electronic Ballasts: True RMS sensing is the most accurate way to measure power supply or ballast input power. General data TA TS m IPxx Ambient operating temperature Ambient storage temperature Mass Protection degree - 20 .. + 60 - 20 .. + 85 90 IP20 C C g Application domain * Energy and Automation Page 1/3 070125/4 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Current Transducer APR-B420L Isolation characteristics Vb Rated isolation voltage rms 300 V with IEC 61010-1 standards and following conditions : - Single insulation - Over voltage category CAT III - Pollution degree PD2 - Heterogeneous field Rms voltage for AC isolation test, 50 Hz, 1min 5 kV Partial discharge extinction voltage rms @ 10 pC 1.5 kV Impulse withstand voltage 1.2/50 s 6.1 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 05 600V CAT III HAR 07 1000V CAT III Creepage distance 5.5 mm Clearance distance 5.5 mm Comparative tracking index (Group I) 600 Vd Ve Vw dCp dCl CTI 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. Installation and maintenance should be done with main power supply disconnected. The operator must have an accreditation to install this material. Caution! Risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (e.g. primary conductor, power supply). Ignoring this warning can lead to injury and/or cause serious damage. The user must take care of all protection guarantee against electrical shock. This transducer is a built-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Page 2/3 070125/4 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Dimensions AP(R)-B420L (unit : mm, 1mm = 0.0394 inch) Front View 55 20 Range Selection Switch 14.80 4.70 Left View 16.40 40(distance between screws) 37 33.50 Axis of aperture 67 21 25 18.50 Plug-in connector included : XW4B-03C1-H1 (OMRON) 18.50 Bottom View Connections Load 4-20mA (Controller, Meter, etc,) 24 VDC Power (-) (+) * Wires up to 2 mm * Female connector provided (spring terminal blocks) * User-friendly spring-cage connection for no-tool direct conductor connection AP/APR Mechanical characteristics * General tolerance 1 mm 18.5 mm 2 holes 4.0 mm * Primary aperture * Panel mounting Output Connector 3none2(-) 1(+) Front Range Switch * Distance between holes 40.0 mm For panel mounting, replace M4 screws by new one (not supplied) with appropriate length to panels thickness. Load Resistance v s. Supply Voltage 30 +24VDC OUT Ip Supply Voltage 25 20 15 10 5 0 0 50 100 150 200 250 300 350 400 Is GND Load Resistance DIN size35.50 69 Page 3/3 070125/4 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com |
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