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NK Technologies ASO Series Current Operated Switches
NK Technologies ASO Series
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Features:
- Wide Range of Output Options
- Dependable, solid state switch N.O. or N.C. contacts rated at 240VAC or 30VDC.
- Compatible with most standard automation controllers.
- Isolated Inputs and Outputs
- Inductive sensing eliminates insertion loads on monitored circuit, effectively isolating it from unit.
- Isolated Outputs simplify wiring and enhance safety.
- Adjustable Setpoints
Setpoints are field adjustable from 3mA to 350mA, speeding installation and allowing for tailored applications.
- UL, CUL and CE Approval
Accepted worldwide.
Applications:
- Fan Monitoring
- Fan status in heating and drying applications.
- Identify lamp outages or other malfunctions through changes in current consumption.
- Fractional HP Motors
Ideal for monitoring small motors used in critical applications; for example, fan-proving on a crucial cooling fan.
- Fault Current Sensing
Detects extremely low levels of current resulting from fault conditions.
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| Model |
Description |
List Price |
Sale Price |
| AS0-NCAC-120 |
Field Adjustable, 3-350 mA, Solid State Output, N.C., 1 A @ 240 VAC, Output: N.C., 1 A @ 240 VAC |
$205.00 |
| $182.45 |  |
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| AS0-NOAC-120 |
Field Adjustable, 3-350 mA, Solid State Output, N.O., 1 A @ 240 VAC, Output: N.O., 1 A @ 240 VAC |
$205.00 |
| $182.45 | |
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| AS0-NCDC-120 |
Field Adjustable, 3-350 mA, Solid State Output, N.C., 0.15A @ 30VDC, Output: N.C., 0.15A @ 30VDC |
$205.00 |
| $182.45 | |
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| AS0-NODC-120 |
Field Adjustable, 3-350 mA, Solid State Output, N.O., 0.15A @ 30VDC, Output: N.O., 0.15A @ 30VDC |
$205.00 |
| $182.45 | |
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ASO Low-Current Sensors from NK Technologies are specialized current operated switches which combine an ultra-sensitive current transformer and signal conditioning electronics into a single package for sensing AC current from 3-350mA. Useful for signal or lamp status monitoring, detecting minute fault currents or fan proving, the ASO features solid-state outputs and jumper-selectable ranges, which make it a versatile choice for low-current status indicating applications.
Specifications:
| Power Supply |
Operates from +/- 20% of nominal voltage |
| Nominal Voltages |
120 VAC (50-400Hz) or 24 VAC/DC |
| Power Consumption |
2.5 Watts |
| Output Rating |
AC Version: 1A @ 240VAC
DC Version: 0.15A @ 30VDC |
| Response Time |
150 ms @ 5% above setpoint
100 ms @ 50% above setpoint |
| Setpoint Range |
Low Range: 3-15mA Field Adjustable
High Range: 15-350mA Field Adjustable (Custom ranges available, consult factory) |
| Maximum Input |
10A |
| Isolation Voltage |
600VAC (Monitored Circuit) |
| Frequency Range |
50-400Hz (Monitored Circuit) |
| Case |
UL 94V-0 Flammability Rated |
| Environmental |
5 to 158°F (–15 to 70°C),
0-95% RH, non-condensing |
| Listings |
UL Listed, CSA Approved, CE Certified |
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