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.

LEM U.S.A., Inc.
Milwaukee, WI 53224
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.

HBControls, Inc.
Fall River, MA 02720
Mar 12, 2004 Series HBC-138A ac-to-dc transducers sense ac line currents from 5–100 A and produce proportional output voltage of 0–10 Vdc. Inputs can produce signal to analog or digital meter, or can be used by PC or PLC to provide closed-loop control. Factory-set models provide output voltage of 10 Vdc at full scale, while some models provide output voltages that are adjustable using onboard multi-turn potentiometer. All units provide over-voltage protection.

AAC-American Aerospace Controls
Farmingdale, NY 11735 1115
Sep 29, 2003 Closed-loop Series 920 is available in 4 models with input current from 0 to ±50 Adc through 0 to ±125 Adc. Open-loop Series 921 offers 9 models with input current ranges from 0 to ±200 Adc through 0 to ±2,000 Adc. Supply voltages range from 18–28 V. Transducers automatically monitor system data remotely, making them suited for remote power stations. Input to output isolation is 500 Mohm at 500 Vdc, and operating temperature is -40 to 185°F.

NK Technologies
Campbell, CA 95008
Aug 18, 2003 DIN-rail mount Series AP/APR offers user-selectable input ranges from 10–400 A and choice of 4–20 mA or 0–5/0–10 V outputs. They include quick-connect control signal wiring and large aperture with built-in stress relief. Transducers utilize PRIME® technology, where current is sensed without use of magnetic circuit, providing immunity against saturation due to over-current conditions. True RMS model APR is suited for non-linear loads or noisy environments.

Bicron Electronics Co.
Canaan, CT 06018
Aug 14, 2002 EU2B5303 Current to Voltage Transducer converts primary current (up to 200 A, 50-400 Hz) to programmable 0-10 Vac control of instrument voltage. It isolates current to be measured from monitoring or control systems and provides interface to process controllers, alarms, and data acquisition systems such as PLCs. Toroidally wound transformer has 0.7 in. ID and 2 in. OD. It is coated with Bicroflex flexible epoxy to provide protection under harsh environmental conditions.

ABB SSAC
Baldwinsville, NY 13027
Jun 24, 2002 Loop powered DCSA Series linear output current transformer provides output that is directly proportional to rms ac current passing through external LCSC10T12 toroidal sensor. Output can be 4-20 mA, 1-5 Vdc, or 2-10 Vdc. It is available in ranges of 0-5, 0-10, and 0-50 A, making it suitable for measuring current draw on motors, fans, lamps, heaters, solenoids, and valves. The 0-5 A range allows use of second transformer to monitor loads up to 1,200 A.

Entrelec Inc./ABB
Irving, TX 75038 4312
Apr 10, 2002 DCSA Series loop powered, linear output current transformer provides output directly proportional to RMS AC current passing through external LCSC10T12 toroidal sensor. It provides either analog current or voltage: 4 to 20 mA, 1 to 5 Vdc, or 2 to 10 Vdc. Each unit is factory calibrated for monitoring (with LCSC10T12) 0 to 5, 0 to 10, 0 to 20, or 0 to 50 A. Transducer senses current draw on equipment such as motors, fans, lamps, heaters, and valves.

WAGO Corp.
Germantown, WI 53022
Nov 28, 2001 786 Series transducers can convert 0-10 V or 4-20 mA signals into isolated 0-10 V, 0-20 mA, or 4-20 mA signal with isolation rating of 4kV. It can be plugged directly onto terminal block assembly using base receptacle blocks that are 15, 20, or 25 mm wide. Modules are protected against mismating and can be replaced in single operation during maintenance without affecting wiring. Touchproof test contacts can also be used.