AHR-B10

AC/DC Current transducer AHR-B10 The transducer for the electronic measurement of DC & distorted AC waveform currents, with galvanic isolation between the primary circuit (power) and the secondary circuit (measurement). True RMS 0-10 V voltage output. IPN = 500 .. 2000 A Electrical data Primary nominal DC & AC current I PN ( At rms) 500 800 1000 1500 2000 Primary AC current max. peak value 1) I P ( A) 2000 2500 2000 2500 3000 Output voltage (Analog) V OUT (VDC) 0-10 0-10 0-10 0-10 0-10 Type Features • DC + distorted AC waveform currents measurement • True RMS output • Busbar or panel mounting • Split core type • Insulated plastic case recognized according to UL94-V0. AHR 500 B10 AHR 800 B10 AHR 1000 B10 AHR 1500 B10 AHR 2000 B10 RL VC IC VSL ÎP Load resistance Supply voltage Current Consumption Output voltage limitation Overload capability (Ampere Turns) ≥ 10 kΩ + 20 .. 50 V DC 35 mA < 14 V 30000 At Advantages • High isolation between primary and secondary circuits • Eliminates insertion loss • Easy installation. Performance data ε X L VOE TCVOE TCVOUT tr BW Accuracy @ IPN, TA = 25°C (excluding offset) Linearity error (1% of IPN .. ± IPN) Electrical offset voltage, TA = 25°C Temperature coefficient of VOE ( 0 .. + 60 °C) (- 40 .. + 70 °C) Temperature coefficient of VOUT (% of reading) Response time to 90% of IPN step Frequency bandwidth (±1 dB) < ±1 % of IPN < ±1.0 % of IPN < ±1.0 % of IPN ± 2.0 mV/K ± 4.0 mV/K ± 0.15 %/K < 150 ms DC, 20 .. 6000Hz Applications • AC power supplies or Motors: True RMS current sensing - the most accurate way to monitor power supply or motor input power • VFD Controlled Loads: VFD output current monitoring to indicate how the motor and the attached load are operating • SCRs or Switch-mode Rectifiers: Accurate measurement of output current • Renewable Energy Installations or Backup Batteries: Continuous condition minitoring General data TA TS m IPxx Ambient operating temperature Ambient storage temperature Mass Protection degree - 40 .. + 70 - 40 .. + 85 650 IP20 °C °C g Note : 1) The max. peak AC current is the highest peak level of the primary signal that is taken into account for accurate true r.m.s. calculation. Yet the device is designed for maximum continuous true r.m.s value equal to I PN, whereas the output is limited by the above specified output limitation. allowing automatic failure detection/ anticipation. Application domain • Energy and Automation Page 1/3 061128/6 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Current Transducer AHR-B10 Isolation characteristics Vb Rated isolation voltage rms 1) 500 V with IEC 61010-1 according to the 61326 standards and following conditions: - Reinforced isolation - Over voltage category III - Pollution degree PD2 - Heterogeneous field Rms voltage for AC isolation test 2) , 50 Hz, 1min 5.8 kV Creepage distance 11.9 mm Clearance distance 11.9 mm Comparative tracking index (Group I) 250-399 Vd dCp dCl CTI Notes : 1) If insulated cable is used for the primary circuit, the voltage category could be improved according to the insulation characteristics given by the cable manufacturer. 2) Between primary (completely filling the aperture) and secondary. Output polarity with DC input Output in V 10 -Ipn 0 +Ipn 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 061128/6 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Dimensions AHR-B10 (in mm. 1 mm = 0.0394 inch) 25 8.3 0 20 17 4 9.10 86 10 4 40 5 0.50 54.10 22. 28 20.34 35 15 15 5.5 0 37 55 110 15 0 Connections • Wires up to 2 mm ∅ • Female connector provided (screw terminals) Output Connector 1(Vcc) 2(NC) 3(Vout) 4(GND) Mechanical characteristics • General tolerance • Primary aperture • Busbar fastening Panel mounting Distance between hole axes ± 1 mm 104 x 40 mm 1 hole ∅ 5.5 mm & 2 slots 5.5 x 30 mm 4 holes ∅ 3.2 mm 15 x 150 mm AHR 24 VDC Power (+) Remarks • The return busbar and primary conductor elbow must be located at a minimum distance of 2.5 x the window length away from the transducer case. • The temperature of the primary busbar can not exceed 90°C. • Dynamic performances are the best with a primary busbar completely filling the primary aperture. • This is a standard model. For different versions (supply voltages, different outputs, bidirectional measurements...), please contact us. +24VDC Is (-) (-) (+) Load (Controller, meter etc) OUT Ip GND 8 .30 25 .60 3 Page 3/3 061128/6 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com