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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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| NK Technologies - AS1 Series, Single-Range AC Current Switch |
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| AS1 Series Current Operated Switches combine a current transformer, signal conditioner and limit alarm into a single package for use in status monitoring or proof of operation applications. Offering an extended set point range of 1–150A and universal, solid-state outputs, the self-powered AS1 can be tailored to provide accurate and dependable digital indication of over-current conditions across a broad range of applications. Available in solid-core enclosure styles or in a splitcore case to maximize ease of installation. |
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Download Complete Specifications in .pdf Format |
Electronic Proof of Flow
Current operated switches eliminate the need for multiple pipe or duct penetrations and is more reliable than electromechanical pres-sure or flow switches. |
Conveyors
- Detects jams and overloads.
- Interlocks multitple conveyor
sections.
- Lighting Circuits Easier to install and
more accurate than photocells.
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Electrical Heaters
Faster response than temperature sensors. |
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- Universal Output N.O. or N.C. solid state
switch for control circuits
- up to 240VAC/DC. Compatible with most
automation systems.
- Self-powered Cuts installation and
operating costs.
- Easily Adjustable Setpoint Speeds
startup.
- Solid or Split-core Case Versions tailored
for each installation.
- LED Indicaton
- Provides quick visual indication of contact
status.
- Built-in Mounting Feet Simple, two-screw
panel mount or attach with optional DIN-rail brackets.
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| Power Supply |
None—Self-powered |
| Output |
Magnetically Isolated Solid-State Switch |
| Output Rating |
- N.O. Version: 0.15A @ 240VAC or VDC
- N.C. Version: 0.2A @ 135VAC or VDC
- Not polarity sensitive
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| Off-State Leakage |
<10µA |
| Response Time |
120 ms |
| Setpoint Range |
- Solid-core: 1–150A
- Split-core: 1.75–150A
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| Hysteresis |
5% of Setpoint |
| Overload |
MODEL |
6 SEC |
1 SEC |
| -GO(NOU) |
500A |
1000A |
| -GO(NCU) |
400A |
1000A |
| All other |
400A |
1000A |
| Isolation Voltage |
UL Listed to 1270VAC, tested to 5000VAC |
| Frequency Range |
6–100Hz |
| Sensing Aperature |
- -FF Case: 0.55” (14mm) dia.
- -FT Case: 0.74” (19mm) dia.
- -SP Case: 0.85” (21.6mm) sq.
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| Case |
UL94 V0 Flammability Rated |
| Environmental |
-58 to 122°F (-50 to 50°C) 0–95% RH, non-condensing |
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| Solid-Core Models: |
| Model |
Description |
Output |
 AS1-NCU-FT |
Adj. Setpoint, 1–150A, Top Term,, SmartLED |
N.C., 0.2A@135VAC/VDC |
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AS1-NCU-FT-NL |
Adj. Setpoint, 1–150A, Top Terminals |
N.C., 0.2A@135VAC/VDC |
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AS1-NCU-FT-GO |
Fixed 0.75 Amp Setpoint “Go-No Go”, Top Term. |
N.C., 0.2A@135VAC/VDC |
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AS1-NOU-FT |
Adj. Setpoint, 1–150A, Top Term., SmartLED |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-FF |
Adj. Setpoint, 1–150A, Front Term., SmartLED |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-FT-NL |
Adj. Setpoint, 1–150A, Top Terminals |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-FF-NL |
Adj. Setpoint, 1–150A, Front Terminals |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-FF-GO |
Fixed 0.75 Amp Setpoint “Go-No Go”, Front Term. |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-FT-GO |
Fixed 0.75 Amp Setpoint “Go-No Go”, Top Term. |
N.O., 0.15A@240VAC/VDC |
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| Split-Core Models: |
| Model |
Description |
Output |
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AS1-NCU-SP |
Adj. Setpoint 1.5–150A, SmartLED |
N.C., 0.2A@135VAC/VDC |
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AS1-NCU-SP-NL |
Adj. Setpoint 1.5–150A |
N.C., 0.2A@135VAC/VDC |
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AS1-NCU-SP-GO |
Fixed 1.25 Amps Setpoint “Go-No Go” Switch |
N.C., 0.2A@135VAC/VDC |
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AS1-NOU-SP |
Adj. Setpoint 1.5–150A, SmartLED |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-SP-NL |
Adj. Setpoint 1.5–150A |
N.O., 0.15A@240VAC/VDC |
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AS1-NOU-SP-GO |
Fixed 1.25 Amps Setpoint “Go-No Go” Switch |
N.O., 0.15A@240VAC/VDC |
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