PRODUCT SPECIFICATIONSMonitored Current Type:Maximum AC Voltage:Isolation Voltage:Operating Frequency Range :Core Style:Supply Voltage:Maximum Load Resistance @ 24 VDC:Supply Current:Sensor Amperage Range:Output Signal | Maximum Output Signal:Accuracy :Response Time: Aperture Size:Din Rail Size:Operating Temperature Range:Operating Humidity Range:Storage Temperature | RH Range:Enclosure Material | Flammability Rating:Wiring Connections:Wire Recommendations:Wire Size:Terminal Block Torque Rating:Minimum Mounting Distance:Agency Approvals:Product Weight:Product Dimensions:AC Current600 VAC 2200 VACA/CTA2 & A/SCTA2 Series: 40 to 1KHz | A/CTA2-50-RMS & A/SCTA2-50 RMS: 15 to 100 HzA/CTA2-250-RMS (0-100A Range): 15 to 100 Hz | A/CTA2-250-RMS (0-200/250A Ranges): 30 to 100 HzSolid-Core and Split-Core Versions available (See Ordering Grid)+8.5 to 30 VDC (Reverse Polarity Protected)250 Ohm Load (1-5 VDC): +13.5 to 30 VDC | 500 Ohm Load (2-10 VDC): +18.5 to 30 VDC775 Ohms (Formula: (24 VDC – 8.5 VDC) / 0.020A )25 mA minimumSee Ordering Grid (Field Selectable)4 to 20 mA (2-Wire, Loop Powered) | Limited to 25 mA All Models: +/- 1% of Selected Range except A/SCTA2-50-RMS: +/- 2% from 15 to 20 Hz +/- 1% from 20 to 100 HzA/CTA2-xxx and A/SCTA2-XXX: < 600 mS (Rise and Fall Time)A/CTA2-xxx-RMS & A/SCTA2-50-RMS: 600 mS (Rise Time) and 2800 mS (Fall Time)0.75” (19.05 mm)35 mm (U.S. Patent No. 7,416,421)5 to 104ºF (-15 to 40ºC)0 to 95%, non-condensing41 to 95°F (5 to 35°C) | 40% to 85% RH, non-condensingPC/ABS (Polycarbonate/ABS Blend) | UL94-V02 Position, Screw Terminal Block (Polarity Sensitive)2 Conductor (Shielded Cable)18 to 24 AWG (0.823 mm to 0.205 mm) Copper Wires only4.43 to 5.31 in-lbs. (0.5 to 0.6 Nm)1” (2.6 cm) between current sensor & other magnetic devices (Relays, Contactors, Transformers)CE (-RMS Versions): CE to IEC 61326-1: 2012 Class A, UL/CUL US Listed (UL 508) Ind. Control Equipment (File # E309723), RoHS2, WEEEA/CTA2-xxx: 0.260 lbs. (0.118 kg) | A/SCTA2-xxx: 0.274 lbs. (0.124 kg)A/CTA2-xxx-RMS: 0.190 lbs. (0.087 kg) | A/SCTA2-xxx-RMS: 0.190 lbs. (0.087 kg) Solid Core Versions: 2.760” (70.11 mm) x 3.343” (84.92 mm) x 1.050” (26.67 mm)Split Core Versions: 2.780” (70.51 mm) x 3.238” (82.25 mm) x 1.120” (28.45 mm)Automation Components, Inc.CURRENT | 4-20 MA OUTPUTNote: All current output sensors are calibrated at an ambient room temperature of 71ºF (21.5ºC) | Note: Only the 0 to 100 Amp range in the A/CTA2-250-RMS will meet accuracy specications from 15 to 100 HzSplit-CoreSolid-Core4-20 MA OUTPUTCTA2, SCTA2, CTA2-RMS & SCTA2-RMS SeriesThe 4-20 mA Output Analog Current Sensors are designed for use in any AC current monitoring application in which you are looking to monitor a particular piece of equipment. The “Average” style current sensors should be used in applications where the Sinusoidal waveform has no distortion or noise on the conductor being monitored. Applications may include monitoring a resistive type load such as an incandescent light bulb, heating element as well as any single speed linear load. Note that the “True RMS” sensors are able to be used in all applications since the “True RMS” current sensors provide the best overall accuracy and should be used in applications which includes Variable Frequency Drives, Switching Power Supplies, Computers and Data Centers, Electronic Ballasts, SCR’s, and Variable Speed Loads. For currents monitored above 250 Amps, the CTA2-5 and SCTA2-5 are ideal for use with a step down Ratio:5A Output CT (Current Transformer) in stepping down current in a monitored conductor to a proportional 0 to 5A output signal. The current sensors are available in both solid and split-core versions which also includes a Patented (Pat. No. US 7,416,421) 35 mm Din Rail mounting foot for easy installation in panel mount applications. The solid-core versions are a great choice for new installations or OEM applications in which cost sensitivity, lower trip points and environmental issues like dust and moisture may be of concern. The split-core version of the current sensors work great in retrot applications and for use on service technicians vehicles since one or two parts will work in most applications and can be easily installed without disconnecting any wires. Applications: Load Trending, Basic Power Monitoring, Electronic Ballasts, Computers/Data Centers, Industrial, Variable Speed Loads, Pumps, Compressors, Fans, Preventative Maintenance, LEED, Project Justication (ROI) Process Control, Solid State Environments (SCR’s)The 4-20 mA Output Current Sensors are covered by ACI's Five (5) Year Limited Warranty. The warranty can be found in the front of ACI's Sensors & Transmitters catalog, as well as on ACI's website, www.workaci.com.CURRENT | ## Call: 1-888-967-5224 | Web: www.workaci.com DIMENSIONAL DRAWINGFront ViewRight ViewBottom ViewRevision C0000001 | Rev 1.0Automation Components, Inc.CURRENT | 4-20 MA OUTPUTNote*: Only the 100 Amp Range will meet the accuracies over the operating frequency range of 15 to 100 Hz (See Specication Table)Solid-CoreSplit-CoreSTANDARD ORDERINGModel #A/CTA2-5A/CTA2-50A/CTA2-250A/SCTA2-5A/SCTA2-50A/SCTA2-200A/CTA2-50-RMSA/CTA2-250-RMSA/SCTA2-50-RMSItem #142379142378142377142376142375142374142373142372142371Selectable Ranges0 to 5A0 to 10/20/50A0 to 100/200/250A0 to 5A0 to 10/20/50A0 to 100/150/200A0 to 10/20/50A0 to 100*/200/250A0 to 10/20/50AMeasurementAverageAverageAverageAverageAverageAverageTrue RMSTrue RMSTrue RMSAC WaveformPure SinusoidalPure SinusoidalPure SinusoidalPure SinusoidalPure SinusoidalPure SinusoidalDistorted & Pure SinusoidalDistorted & Pure SinusoidalDistorted & Pure SinusoidalOutput Signal4 to 20 mA4 to 20 mA4 to 20 mA4 to 20 mA4 to 20 mA4 to 20 mA4 to 20 mA4 to 20 mA4 to 20 mA-OR-Model # Example:A/CTA2-51423792.36” (59.94mm)2.77”(70.45mm)2.87” (72.80mm)3.35” (84.99mm)1.03”(26.16mm)2.87” (72.77mm)2.77”(70.35mm)1.10” (28.02mm)2.55” (64.69mm)3.24” (82.23mm)Solid-Core•••••Split-Core••••ACCESSORIES ORDERINGItem #100307100306100469Description249 Ohm, 1/4W, +/- 1% Tolerance, 50 PPM Resistor249 Ohm, 1/4W, +/- 0.1% Tolerance, 50 PPM Resistor (Recommended for Best Accuracy)499 Ohm, 1W, +/- 1% Tolerance, 50 PPM ResistorItem # Example:100307CURRENT | ## Call: 1-888-967-5224 | Web: www.workaci.com The 4-20 mA Output Current Sensors are not intended to be used in Life / Safety Applications or in Hazardous / Classied LocationsNext >