INSTRUCTIONS
1. Run all current carrying conductors
through sensor window
A. Use an auxiliary CT if conductors do not fit. Con-
sult Factory for CT selection.
2. Mount the sensor to a surface if needed.
3. Connect output & power wiring.
A. Use up to 14 AWG copper wires.
B. Make sure load matches the output shown on the
sensors’ label.
•
Sensors labeled “xxAC” will only switch AC.
•
Sensors labeled “xxDC” will only switch DC.
C. Make sure power supply matches the power input
shown on the label.
4. Test
A. Pressing the “TEST” button tests the sensors inter-
nal circuits. CAUTION: The output and any con-
nected loads will switch!
AG1-NCAC-120 -FS - 005
Model Number Key
Specifications
Quick “How To” Guide
Power Supply Notes
AG 1, 2 & 3 SERIES
Ground Fault Sensors
Auto-Reset
Output Type
NCAC
Normally Closed 1A @ 240 VAC
NOAC
Normally Open 1A @ 240 VAC
NCDC
Normally Closed 0.15A @ 30 VDC
NODC
Normally Open 0.15A @ 30 VDC
NCR
Normally Closed, 0.5A @ 120 VAC, 0.25A
@ 240 VAC, 2A @ 30 VDC
NOR
Normally Open, 0.5A @ 120 VAC, 0.25A @
240 VAC, 2A @ 30 VDC
Power Supply
24U 24 VAC/DC
1 2 0 120 VAC
2 4 0 132-264 VA C
Setpoint Range
1
5-100mA, Adjustable
2
80-950mA, Adjustable
3
Tri-Set, 5, 10 & 30 mA, Jumper Select
AG Series Ground Fault Sensor
Setpoint Range
AG1 Series: 5-100mA Field Adjustable
AG2 Series: 80-950mA Field Adjustable
AG3 Series:
Tri-Set, 5, 10 & 30 mA, Jumper
Select
Voltage Range
Up to 1,500 VAC (Monitored Circuit)
Frequency Range
50-400Hz (Monitored Circuit)
Output Options
(See Product Label)
Solid State AC Switch
1A @ 240 VAC (2A for 10 Min)
Solid State DC Switch
0.15A 30 VDC (500mA
momentary)
Relay Output
0.5A @ 120 VAC, 0.25A @ 240
VAC, 2A @ 30 VDC
Response Time
150 mS @ 5% above setpoint.
100 mS @ 50% above setpoint.
Power Supply
Operates from 55-110% of nominal voltage
Nominal Voltages
120, 240 VAC (50-400 Hz)
Green LED=Power
Optional Power
24VAC or 24 VDC Op/- 20%
Power Consumption
2.5 Watts
Dimensions
2.5"H x 2.8"W x 1.5"D, (64x71x38mm),
aperture 0.75" (19mm) dia. (See Diagram)
Case
UL 94V-O Flammability Rated
Environmental
5 to158 DegF (-15 to 70 DegC), 0-95% RH,
Non Condensing
Listings
UL 1053, Class 1 Recognized, CE Certified
(Not all option combinations are recognized.
See product label)
System Grounding
Know Your Power
Other NK Technologies Products Include:
AC & DC Current Transducers
AC & DC Current Operated Switches
1
φ
& 3
φ
Power Transducers
Current & Potential Transformers (CTs&PTs)
All low-current Ground-Fault Sensors are sensitive devices
that require reasonable care in system design to avoid false
trips caused by high electrical noise levels. Keep in mind that
the best way to reduce noise in a system is to suppress it at its
source.
1. Keep the sensor power isolated from noisy circuits.
2. Do not power the sensor with the same circuit that
switches contactors or other high current, inductive loads.
Good design practice and code require that all AC power
systems be grounded. AG Series sensors are designed to
work on grounded AC power systems. They may not operate
properly on ungrounded systems.
Setpoint
005 to 950 Factory Adjusted
Setpoint in mA (specify
when ordering)
TR3
Tri-Set, 5, 10 & 30 mA,
Jumper Select
Options
FS
Normally Energized
NF
Normally De-energized
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