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'AT' Current Transducers from NK Technologies combine a current transformer and signal conditioner into a single package. The AT Series has jumper selected current input ranges and industry standard 4-20mA, 0-5VDC or 0-10VDC outputs. The AT Series is designed for application on 'linear' or sinusoidal AC loads. Available in a split-core case or two types of solid-core cases.
NK Technologies AT Series AC Current Transducers, Jumper Selectable Input Ranges, 0 - 5 VDC, 0 - 10 VDC or 4 - 20 mADC Output
| -005 Model | -010 Model | -420 Model | |
| Output Signal | 0–5 VDC | 0–10 VDC | 4–20 mA |
| Output Limit | 8.2 VDC | 15 VDC | 32 mA |
| Accuracy | 1.0% FS | ||
| Response Time (10–90% step change) | 100 ms | 300 ms | |
| Frequency Range | 50–60 Hz | 20–100 Hz* | |
| Other Frequencies | Special calibration available for any frequency from 10–400 Hz* | ||
| Power Supply | Self-powered | 12–40 VDC, Loop powered | |
| Loading | 1 megohm min., 100 KΩ add 1.3% error | Contact factory for power requirements | |
| Isolation Voltage | UL listed to 1270 VAC, tested to 5 KV | ||
| Input Ranges | Field-selectable ranges from 0–200 A; custom ranges available; consult factory. | ||
| Sensing Aperture | • -FF Case: 0.55” (14 mm) dia. • -FT Case: 0.74” (19 mm) dia. • -SP Case: 0.85” (21.6 mm) sq. | ||
| Case | UL94 V0 Flammability Rated | ||
| Environmental | -4 to 122°F (-20 to 50°C) 0–95% RH, non-condensing | ||
| Listings | UL 508 Industrial Control Equipment (USA & Canada), CE | ||
*For sinusoidal waveforms only. Select ATR Transducers for distorted waveforms.
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