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| Back to NK
Technologies Main Selection Page |
| AC and DC Current Switches |
| AS1 Series, Single-Range AC Current Switch |
| AS1 DODC
Series, Current Switch with Dual Output |
| AS3 Series, Multi-Range AC Current Operated Switches |
| ASM Series,
Self-Calibrating AC Current Switches |
| ASX Series, AC Current Switches with Time Delay |
| ASXP Series,
Powered AC Current Switches with Time Delay |
| AS0 Series, Low Range AC Current Operated Switches |
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DS3 Series, DC
Current Operated Switches |
| AC and DC Current
Transducers |
| AT Series, AC Current Transducers, Average Responding |
| ATR Series, AC
Current Transducers, True RMS |
| AT/ATR 3 & 4 Series, High Current AC Transducers |
| ATP Series, Powered
AC Current Transducers |
| ATP/ATPR 3 & 4 Series, Powered AC Current Transducers, True
RMS |
| DT Series, DC Current
Transducers |
| Ground Fault / Earth Leakage
Sensors |
| AG Series, Ground Fault/Earth Leakage Sensors - Solid-State
Relay Output |
| AG Series, Ground
Fault/Earth Leakage Sensors - Mechanical Relay Output |
| AGL Series, Large Aperture Ground Fault
Sensors |
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| ATP/ATPR 3 & 4 Series, Powered AC Current Transducers, True RMS |
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| ATP/ATPR 3 & 4 Series Powered High-Current Transducers are largeformat solid-core transducers designed for high current applications from 200A to 2000A. Powered by 120VAC or 24VAC/VDC, these products take advantage of available power supplies and eliminate the need for costly control power transformers. Options include average responding and True RMS versions, 0–5/10VDC or 4–20mA analog outputs and switch-selectable input ranges. |
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Download Complete Specifications in .pdf Format |
Commercial and Industrial MCC’s
Fits conveniently in motor control centers, senses current on industrial motors and provides analog inputs back to PLC or controller. |
VFD or SCR Controlled Loads, Electronic Ballasts
Helpful in monitoring VFD-controlled motors to provide operational status. ATR Series also provides accurate measurement of ballast input power and phase angle fired SCRs. |
Large Pumping Applications
Ideal for proof-of-flow in water/wastewater, boiler and other industrial pumping applications 150 HP and over. 120VAC or 24VAC/VDC supply options allow for powering off of readily available supply, eliminating need for CPTs. |
Power Distribution Centers (PDCs)
Monitors current output on commercial generation equipment and serves as a current input for use in power consumption calculations. |
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- Large Aperture - Accommodates large
conductors or wire bundles.
- Select the Right Output
- True RMS technology is accurate on
distorted wave form like those associated with VFD or SCR outputs.
- Average Responding for use with linear,
sinusoidal waveforms.
- Jumper Selectable Ranges
- Reduces inventory.
- Eliminates zero and span pots.
- Isolation
- Output is magnetically isolated from
the input for safety.
- Eliminates insertion loss (voltage
drop).
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-005 Model |
-010 Model |
-420 Model |
| Output Signal |
0–5VDC |
0–10VDC |
4–20mA |
| Output Limit |
112% (5.6V) |
112% (11.2V) |
112% (22.4mA) |
| Loading |
- 25KOhms min.: VDC Models
- 500Ohms max.: 4–20mA Models
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| Response Time |
100ms (10–90% step change) |
| Frequency Range |
- ATP: 40–100Hz, Sinusoidal
- ATPR: 10–400Hz
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| Accuracy |
1.0% FS |
| Power Supply |
120VAC or 24VAC/VDC, 2VA max |
| Isolation Voltage |
600VAC |
| Input Ranges |
- ATP3/ATPR3: 0–375A/500A/750A
- ATP4/ATPR4: 0–1000A/1333A/2000A
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| Sensing Aperture |
3.0” (76.2mm) dia. |
| Case |
UL94 V0 Flammability Rated |
| Environmental |
5 to 122°F (-15 to 50°C) 0–95% RH, non-condensing |
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| Ordering Information |
Download Complete Specifications in .pdf Format |
| Solid-Core Only |
| Model |
Description |
Output |
 ATP3-010-120-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
0–10VDC |
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ATP3-420-24U-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
4–20mA |
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ATP3-010-24U-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
0–10VDC |
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ATP3-420-120-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
4–20mA |
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ATP4-420-120-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
4–20mA |
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ATP4-010-120-FL |
0–1000, 1333, 2000A Ranges, Large Window
(3”) |
0–10VDC |
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ATP4-420-24U-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
4–20mA |
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ATP4-010-24U-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
0–10VDC |
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ATPR3-420-120-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
4–20mA |
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ATPR3-010-120-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
0–10VDC |
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ATPR3-420-24U-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
4–20mA |
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ATPR3-010-24U-FL |
0–375, 0–500, 0–750A Ranges, Large Window (3”) |
0–10VDC |
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ATPR4-420-120-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
4–20mA |
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ATPR4-010-120-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
0–10VDC |
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ATPR4-420-24U-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
4–20mA |
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ATPR4-010-24U-FL |
0–1000, 1333, 2000A Ranges, Large Window (3”) |
0–10VDC |
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