Description
NK AS0-NOAC-24U – Current Sensing Switch, AS0 Series
- AS0 series
- Current sensing switch
- Output type = NOAC Normally Open, 1 A @ 240 VAC
- Power Supply = 24 VAC/DC
AS0 Series Current Sensing Switches are designed to detect very low AC current and provide a solid-state contact to open or close at a setpoint adjustable from 3 to 350 mA across two ranges. Useful for signal or lamp status monitoring, detecting low level fault currents or fan status proofing, the AS0 Series features solid-state outputs and jumper-selectable ranges, which make it a versatile choice for low-current status indication applications.
Current Sensing Switch 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 status proofing on a crucial cooling fan.
LED Lamp Operation
- Switch can detect LED light sources drawing less than one half watt at 120 VAC.
Current Sensing Switch Features
Wide Range of Output Options
- Dependable, solid-state relay N.O. or N.C. contacts rated at 240 VAC or 30 VDC.
- Compatible with most automation controllers.
Isolated Inputs and Outputs
- Inductive sensing eliminates insertion loads on monitored circuits, effectively isolating it from the unit.
- Isolated outputs simplify wiring and enhance safety.
Adjustable Setpoints
- Setpoints are field-adjustable from 3 mA to 350 mA, speeding installation and allowing for tailored applications.
UL/cUL and CE Approved
- Accepted worldwide.
Current Sensing Switch Ordering Information
Sample Model Number: AS0-NODC-120
Ultra low current sensing switch, normally open solid-state DC output and 120 VAC power supply. (DIN rail adapters are included)
 |  | (1) |  | (2) | |||||
AS0 | – | Â | Â | Â | Â | – | Â | Â | Â |
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(1) Output Type | |
NCAC | Normally Closed, 1 A @ 240 VAC |
NOAC | Normally Open, 1 A @ 240 VAC |
NCDC | Normally Closed, 0.15 A @ 30 VDC |
NODC | Normally Open, 0.15 A @ 30 VDC |
(2) Power Supply | |
24U | 24 VAC/DC |
120 | 120 VAC |
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