NK Technologies    Campbell, CA 95008
Jan 13, 2012 DT Series combines hall effect sensor and signal conditioner into one package for use in DC current applications up to 1,200 A. Available in factory calibrated ranges that facilitate operation while also eliminating zero and span pots, large aperture current transducers offer 4-20 mA, 0-5 Vdc, or 0-10 Vdc outputs that are magnetically isolated from input for maximum safety. While internal power regulation delivers reliable operation, DIN-rail mount enclosure facilitates installation.

NK Technologies    Campbell, CA 95008
Oct 13, 2011 Packaged in 35 mm wide DIN rail enclosure, VTD Series offers solution for monitoring, detecting, and diagnosing voltage conditions in DC-powered installations, including industrial motors, battery chargers, photovoltaic arrays, and wind generators. Units operate on circuits from 0-15 to 0-600 Vdc and deliver fully isolated 4-20 mA loop-powered output, facilitating use with controllers, data loggers, and SCADA equipment. To maximize safety, input and output circuitry is fully isolated.

NK Technologies    Campbell, CA 95008
Aug 04, 2011 With open collector transistor frequency output design, ATQ Series is used as input to high-speed counter or frequency PLC modules, panel meters, or programmable relays, to monitor machine current usage to within ±1% of range. Multiple ranges from 0-2 to 0-200 A are available to meet needs of particular applications. Split-core enclosure facilitates installation by eliminating need to disconnect monitored conductor to install sensor.

NK Technologies    Campbell, CA 95008
Jun 20, 2011 Monitoring resistive or inductive loads to detect current usage on large machines using AC current, ATCR Series flexible loop current transducers consist of sensing coil and True RMS signal conditioner. Each model uses 2 wires to provide power supply and output signal, allowing installer to pass coil around conductors without disconnecting existing wires. Supplied in 35 mm DIN-rail mount enclosure, series offers single range functionality and output magnetically isolated from input.

PREMO Group    Barcelona   Spain
Dec 01, 2010 Featuring range starting as low as 4 mA, accuracy of 0.2%, and linearity of 0.1%, HCT-2000LF closed-loop Hall Effect current transducer is tolerant to noise and disturbance and designed for full mechanical and functional compatibility with industry standards. Input supply symmetrical voltage accommodates power supplies from 15-24 V, while electronics and hall effect sensing components are optimized for high availability operation. Current offset can be trimmed and compensated by software.

American Aerospace Controls, Inc. (AAC)    Farmingdale, NY 11735
Aug 25, 2009 Available for differential and ground fault current monitoring, space flight Series S 767 and military grade Series 913 B provide isolated analog output directly proportional to input magnetically. Featuring ½ in. aperture, Series S 767 operates on 22-36 Vdc power with response time of 50 ms. Series 913 B, designed with ¾ in. aperture, operates from 24-32 Vdc power with response time of 1 ms. Both chassis-mount series feature 0 to +5 V output and accuracy of 1% FS.

American Aerospace Controls, Inc. (AAC)    Farmingdale, NY 11735
Jul 16, 2009 Designed to compare AC input to fixed or adjustable current threshold, Series 870 and ACS-3 provide isolated switch or relay output that is activated as required. Housed in metal case and operating from -20 to +71°C, Series 870 features SPDT relay output with 10 A contacts, frequency from 47-63 Hz, and ¾ in. dia aperture. Series ACS-3, operating from -50 to +65°C, is housed in plastic case with solid state switch output, frequency from 6-100 Hz, and response time of 200 msec.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
May 28, 2009 Able to measure currents to 4,000 ARMS in conductors of up to 268 mm dia, ITL 4000-S allows isolated measurement of AC, DC, and pulsed currents up to three times nominal value for peak measurement at frequencies to 50 kHz (±1 dB). Closed-loop Fluxgate technology ensures measurement accuracy (±0.1% of IPN) over -40 to +70°C operating range. This accuracy also allows measurement of small DC currents in presence of large AC components.

American Aerospace Controls, Inc. (AAC)    Farmingdale, NY 11735
Apr 01, 2009 With supply voltage of +22 to +32 Vdc, military-grade, bi-directional Series S651 provides output of 0 to ±5 V with accuracy of 1% full scale. Current ranges are 0 to ±100 A to 0 to ±200 A. Operating from -40 to +65°C, devices feature frequency range of DC-3.5 kHz and 100 µsec response time. Industrial grade, bi-directional Series S764 offers current ranges from 0 to ±20 A to 0 to ±100 A.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Feb 20, 2009 Designed for AC and DC isolated current measurement from 6-50 Arms nominal, CAS, CASR and CKSR family of PCB mounted current transducers feature 7-30 ppm/K of thermal offset drift, and have response time less than 0.3 microsec. Products utilize Closed Loop Fluxgate technology, and operate from single 5 V supply. Plastic case of unit has Comparative Tracking Index of 600. CKSR model has one more primary pin than 3 pins of CAS/CASR models which enables creepage and clearance distances of 8.2 mm.

Grupo Premo    Barcelona   Spain
Jan 05, 2009 Based on low consumption Fluxgate Technology, Series DCT-200A measures DC, AC currents, with precision levels of 99.9% of linearity and 5 ppm of linear error. It offers wide band-width of up to 100 kHz, up to 200 A, and measures 52 x 52 x 37 mm. Featuring immunity to all kind of interferences, unit suits energy measurement systems, medical equipment, high stability inverters, and high power supply applications.

CR Magnetics    St. Louis, MO 63122
Nov 05, 2008 Designed to sense phase angle difference between ac current and voltage signals, CR6300 Series includes 3 models with 0-5 Vdc, 0-10 Vdc, or 4-20 mAdc output. Units are powered by single 24 Vdc power supply, and have window openings to accommodate current carrying wires up to .26 in. diameters. They offer up to 500 V input voltage and up to 25 A of current. Housed in 3.26 x 1.42 x 2.99 in. package, transducers can be mounted on 35 mm DIN rails or surface panels.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Oct 01, 2008 Featuring insulating technology, DC Class 1 Accuracy DV Series Voltage Transducer is designed for insulated voltage measurements from 1,200-4,200 Vrms. It features current consumption of 19-23 mA, frequency bandwidth of 12 kHz, and safety insulation voltage of 18.5 kV. Suited for energy metering applications, unit meets demands of modern rail systems and fulfils all new EMC requirements. CE marked device offers high level of partial discharge extinction voltage.

ABB Ltd.    Zurich CH-8050  Switzerland
Aug 22, 2008 Suited for high voltage network applications, Magneto optical current transducer (MOCT-P) optical instrument transformer has free-standing sensor column that communicates with rack mounted electronic module, located in control house, by means of 200/230 multimode optical fibers. It features multiple analog 200 mV low voltage outputs, SF6 free design, and accurate reproduction of fault events. Unit can be used in transmission line, bus, transformer, breaker, or distribution schemes.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Jun 02, 2008 Designed to measure dc, ac, or pulsed current from ±40 to ±100 A, HAB 60-S transducers provide PWM output signal proportional to primary current being measured and operate from unipolar 5 V supply. They use open-loop, Hall-effect technology that helps simplify installation and servicing by eliminating need to cut primary cable carrying measured current. Electric offset error is 0.075 A across temperature range from -10 to +65° C and 0.15 A across full range from -40 to +125°C.

LEM U.S.A., Inc.    Milwaukee, WI 53224
Feb 14, 2008 Operating from single +5 V supply, Model LTSP measures positive and negative ac, dc, and pulse currents on PCBs and provides current output, which allows user to manage accuracy level and thermal drift by selecting output resistance. Unit offers access to internal reference on separate external pin for use with microcontrollers and/or A/D converters. Multi-range configuration is designed for nominal currents of 8, 12, and 25 Arms with galvanic isolation between primary and output circuits.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Feb 11, 2008 Combining ASIC with closed-loop technology, Model LTSP measures positive and negative ac, dc, and pulse currents on printed circuit boards, and offers access to internal voltage reference (2.5 V) on separate external pin. Multi-range configuration is designed for nominal currents of 8, 12, and 25 ARMS with galvanic isolation between primary and output circuits. Offered in 22.2 x 10 x 24 mm package, CE marked unit is UL recognized, and conforms to EN 50178 standard.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Dec 03, 2007 Measuring 174 x 86 x 54.1 mm, DH Series split-core transducers combine Hall-effect technology and signal conditioning in one housing with rectangular sensing aperture for non-contact measurement (supporting up to 104 x 40 mm busbars or 40 mm cables). Products offer choice of primary current measurement from 500-2,000 A and provide absolute accuracy of better than 1% of nominal current value. Bipolar measurement value is delivered via 4-20 mA output.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Jun 18, 2007 Surface-mounted onto PCB, Model HMS current transducer measures .630 x .531 x .472 in. and integrates primary conductor. It features 2.5 V internal reference voltage and -40 to +85°C operating temperature range. Four standard units are available to cover nominal ac, dc, pulsed, and mixed isolated current measurement of 5, 10, 15, or 20 ARMS, up to 50 kHz, with measuring span of up to ±3 x IPN. CE marked unit conforms to EN 50178 standard.

LEM Holding SA    Plan-les-Ouates CH-1228  Switzerland
Jun 14, 2007 Operating from +5 V power supply, surface-mount Model HMS combines ASIC with open-loop, Hall-effect technology. It comes in 4 models to cover nominal ac, dc, pulsed, and mixed isolated current measurement of 5, 10, 15, or 20 ARMS, up to 50 kHz. Internal reference voltage of 2.5 V is provided on separate pin or can be forced by external reference for reference thermal drift cancellation. Measuring .630 x .531 x .472 in., transducers operate from -40 to +85°C.