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.

Physik Instrumente (PI)
Auburn, MA 01501
May 07, 2007 Based on ceramic encapsulated PICMA® multilayer actuator technology, Model P-871 closed-loop piezo bender actuator provides travel ranges up to 1,600 µm (2,000 µm in open loop) and prevents water diffusion into insulation layer. Featuring monolithic design, unit operates at ±30 V and has up to 150°C operating temperature range. Actuator can also be fitted with Models E-651.1S and E-651.2S bench-top units and E-614 OEM controller card for precise closed-loop motion control.

Lindsey Manufacturing Co.
Azusa, CA 91702
Apr 20, 2007 Designed for electric utility distribution automation systems, Voltage Monitor Transducer provides interface between Current and Voltage Monitoring Insulators and current sensors and electric utility protection relays, metering devices, and other IEDs. It incorporates 3 channels to accommodate 3-phase voltage monitoring applications. Integral power supply accepts 120 Vac, 24 Vdc, or 48 Vdc. I/O voltage is 120 Vac nominal, with 150 Vac max output and 1,000 Vac/Vdc max input.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
Apr 20, 2007 Mounted directly onto PCB as SMD device, Minisens integrates Hall-effect sensors with magnetic concentrator to allow 70 A and higher direct current measurement without requiring additional magnetic core. Solution offers full isolation, with no optocouplers required, and sensitivity from 20-200 mV per Amp of primary current with no insertion losses. Parameters can be configured by on-chip non-volatile memory, and IC offers unfiltered and filtered outputs.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
Mar 28, 2007 Combining ASIC with open-loop, Hall-effect technology, HASS Series offers max current measurements from 50-600 A rms. Seven panel-mounted models are available, each measuring 1.6 x 1.2 x 1.3 in. with 0.8 x 0.4 in. aperture for primary conductor. Offering extended operating temperature of -40 to +185°F, transducers measure dc, ac, and pulse currents, while providing galvanic isolation between primary and output circuits. Units are CE marked and conform to EN 50178 standard.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
Mar 19, 2007 Measuring 2.2 in. high, closed-loop, panel-mounted Model LA 306-S features max bandwidth of dc to 50 kHz and overall accuracy better than 0.7% at primary nominal RMS current. Typical linearity error is ±0.1% at nominal current and max offset temperature drift is 500 µA from -40 to 185°F. Accepting busbars up to 0.51 x 1.18 in., transducer provides response time of less than 1 µs and isolation test voltage of 6 kVrms/50 Hz/1 min.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
Oct 23, 2006 AT series ac current transducers measure 50/60 Hz ac signals with rms (average) computation, providing absolute accuracy better than 1.5% of nominal current over range of inputs. Combining current transformer and signal conditioning electronics, 1.75 x 2.6 x 1.4 in. devices feature 0.63 in. dia sensing aperture for non-contact measurement. They can be self- or loop-powered, and are available with primary current measurement ranges from 5-50 A.

Rockwell Automation
Milwaukee, WI 53204
Aug 30, 2006 Available in 5 models, Powermonitor 1000 profiles plant's energy consumption and utilization data and can be applied independently for collecting and charting energy information or integrated into existing energy monitoring systems. Transducer models TR1 and TR2 provide power factor monitoring and measure voltage, current, and power-related tags. Energy-monitor models EM1, EM2, and EM3 measure consumption related tags such as real, reactive, and apparent energy.

LEM Holding SA
Plan-les-Ouates CH-1228  Switzerland
Jun 12, 2006 Model LAX 100-NP Closed Loop Hall-effect sensor measures currents up to 16.67, 25, 33.33, 50, or 100 ARMS, and multiple measurements is possible with single reference. CE marked unit is 16.35 mm high, and integrates with power modules in drive and inverter designs. It features maximum bandwidth of DC to 300 kHz and overall accuracy of ±0.91% at primary nominal rms current of 100 A. Typical linearity error is ±0.06% at 100 A and temperature drift is 200 microamps max from 0 to +70°C.

Raztec (NZ) Ltd.
Christchurch   New Zealand
May 26, 2006 With tolerance to electrically noisy environments, Series 3® Current Transducer incorporates industry standard communications protocol for direct connection to microcontroller's I/O port. Single package design provides current sensing from 1 mA to over 80 A, and offers galvanic isolation from circuit under measurement. Close-coupled, 12-bit ADC provides precisely calibrated digital output stream that is directly proportional to current flowing in conductor.

American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Feb 02, 2006 With frequency range of 20 Hz to 2 KHz, 1070 Series enables accurate comparisons of ac current measurements as well as dynamic signals. Series features current signal from 4-20 mAdc and voltage power range of 12-32 V. Available in 14 current ranges from 2-250 A, products operate over -40 to +185°F temperature range and are protected against reverse polarity. They feature overload current protection to 500 A and have 0-300 ohm load resistance range.

CR Magnetics
St. Louis, MO 63122
May 23, 2005 Split Core Transducers are available in 5 models including True RMS Model CR4100S, Loop powered Model CR4200S, Self-powered Model 4210S, Average RMS Model CR4400S, and DC current Model CR5200S. Powered by single 24 Vdc supply, units operate from 0–60°C with ±1.0% FS accuracy. Window openings accommodate current carrying wires up to 1.21 in. dia. Transducers include latch that secures split core armature, but can also be mounted on 35 mm DIN rails or surface/panels.

LEMO USA Inc.
Rohnert Park, CA 94928
Oct 15, 2004 Series AP and APR combine split-core functionality and quick-connect wiring in DIN-rail mountable enclosure. Units feature user-selectable measuring ranges from 10–400 A with choice of outputs, including 4–20 mA or 0–5/0–10 V.

American Aerospace Controls, Inc. (AAC)
Farmingdale, NY 11735
Jun 04, 2004 Series 929 current transducer consumes 80–270 mW during operation and offers accuracy of ±1.0% FS over temperature range of -40 to 85°C. Compact package measures 1.9 x 3.3 x 1.9 in. and weighs 6 oz. Unit is powered by 10–34 Vdc, meets UL94V-0 flammability rating, and withstands random vibration levels of 12.0 GRMS and shock pulses of 50 g. Transducers are suited for demanding environments requiring high speed current monitoring.