NK TECHNOLOGIES AT-TH Series Instructions Manual

NK TECHNOLOGIES AT-TH Series Instructions Manual Manual pdf 1 page image

INSTRUCTIONS1. Mount AT/ATR-TH Current Transducer to DIN rail orpanel in suitable enclosure.2. With monitored load off, install each phase through thesensing windows. Designate one phase as A, B and C.3. Select the current range using the slide switch.4. Connect output terminals + and - using 22-14 AWGcopper wires rated 70/90°C. Tighten to 5-7 inch-poundstorque.5. Connect power supply voltage to terminals 9-106. The output will be proportional to the current in eachphase, plus one which is the average of the three.7. Any of four analog signals can be used independently, orall four can be used at the same time.AT/ATR-TH SeriesAC Current Transducerw/Proportional Analog OutputsModel Number KeySpecifi cationsQuick “How To” GuideAPT-TH Instruction Sheet Rev 2 04/18 p/n 292000609Other Available Products Include:DC Current Switches, Ground Fault SensorsAC & DC Current SwitchesPower TransducersCurrent & Potential Transformers (CTs&PTs)Power Supply 24 VAC/DC( +/- 10%) Note: Not isolatedfrom output signal.NOTE: Power Supply and output signal ARE NOT isolated. Donot connect the negative terminals to a common point whenusing the 24 V powered models.120 VAC (+/-10%) Note: Power supplyis isolated from output signal.Power Consumption <6.0 VAOutputs Four outputs, three proportional to thecurrent in that phase, one an average ofall three.Signal Type Impedance4-20 mA <500 Ω0-5 VDC >2K Ω0-10 VDC >2K ΩAccuracy 1% FSResponse Time 220 ms (to 90% of step change)Frequency Range AT: 50-60 HzATR: 30-100 HzOver Current Limit 6X range setting for one secondOutput Terminals Finger-safe captive screw, 14-22 AWGTorque to 5-7 inch-poundsIsolation Voltage To 1250VACEnclosure ABS, UL94 V0 Flammability ratedEnvironmental -4 to 122°F, -20 to 50°CApprovals UL/cUL listed E3428123511 Charter Park Drive, San Jose, CA 95136Toll free: 800-959-4014, Phone: 408-871-7510Fax: 408-871-7515sales@nktechnologies.com, www.nktechnologies.comATR 3 - 420 - 24U - THOutput Signal420 4-20mA005 0-5 VDC010 0-10 VDCPower Supply24U 24 VAC/DC (non-isolated)120 120VAC (isolated)Current Ranges1 0-10, 0-15 and 0-30A2 0-30, 0-50, and 0-100A3 0-100, 0-150 and 0-200AAT: Average RespondingATR: True RMSHousing TypeTH Three HoleOutput SignalImpedance Limits

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