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NK TECHNOLOGIES AG 1 Series Instructions

Ground fault detectors solid state auto-reset

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Specifi cations
Power Supply
120 VAC (66-132 volts, 50-60 Hz)
2.5 VA consumption
240 VAC (200-240 volts, 50-60 Hz)
2.9 VA consumption
24 VAC or VDC (19-29 volts)
2.5 VA consumption
Green LED = Power supply energized
Setpoint Range
AG1 Series: 5-100 mA fi eld adjustable
AG2 Series: 80-950 mA fi eld adjustable
AG3 Series: Tri-Set, 5, 10 & 30 mA,
jumper select
Isolation Voltage
Up to 1500 VAC
Frequency Range
50-400 Hz (monitored circuit)
Output Rating
Solid state AC switch: 1.0 A @ 120 VAC,
2 A @ 30 VDC
Solid state DC switch: 0.15 A @ 30 VDC
Response Time
150 ms @ 5% over setpoint
100 ms @ 50% over setpoint
50 ms @ 500% over setpoint
Dimensions
2.60"H x 3.86"W x 1.45"D
(66 x 98 x 37 mm)
Case aperture 0.75" (19 mm) diameter
Case
UL94 V-0 Flammability rated
Environmental
-4 to 122°F (-20 to 50°C)
0-95% RH, Non-condensing
Pollution Degree 2
Altitude to 6561 ft (2000 meters)
Listings
UR/cUR, CE (Not all option combina-
tions are recognized. See product label.)
For products intended for the EU market, the following is applicable
to the CE compliance of the product:
The sensor may comply with EN 61010-1 CAT III 600 V max line-to-
neutral measurement category. If insulated cable is used for the primary
circuit, the voltage rating of the measurement category can be improved
according to the characteristics given by the cable manufacturer.
De-energize power before changing setpoint jumper position.
Warning! Risk of Danger
Safe operation can only be guaranteed if the sensor is used for the purpose it
was designed for and within limits of the technical specifi cations. When this
symbol is used, it means you must consult all documentation to understand
the nature of potential hazards and the action required to avoid them.
Warning! Risk of Shock
When operating the senor certain parts may carry hazardous live voltage
(e.g. primary conductors, power supply). The sensor should not be put into
operation if the installation is not complete.
System Grounding
Good design practice and code require that all AC power
systems be grounded. AG Series detectors are designed to
work on grounded AC power systems. They may not operate
properly on ungrounded systems.
Model Number Key
AG1-NCAC-120 -FS - 005
Setpoint:
005 to 950 - Factory Adjusted
TR3 - Tri-Set, 5, 10 & 30 mA, Jumper
Options:
FS - Normally Energized
NF - Normally De-energized
Power Supply:
24U - 24 VAC/DC
120 - 120 VAC
240 - 200-240 VAC
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
Setpoint Range:
1 - 5-100 mA, Adjustable
2 - 80-950 mA, Adjustable
3 - Tri-Set, 5, 10 & 30 mA, Jumper Select
AG Series Ground Fault Detector
Power Supply Notes
All low-current Ground-Fault Detectors 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 detector power isolated from noisy circuits.
2. Do not power the detector with the same circuit which
powers contactors or other high current, inductive loads.
3511 Charter Park Drive, San Jose, CA 95136
Phone: 800-959-4014 oe 408-871-7510
Fax: 408-871-7515
sales@nktechnologies.com, www.nktechnologies.com
INSTRUCTIONS
Setpoint in mA (specify
when ordering)
Select
Quick "How To" Guide
1. Run all current carrying conductors through detector
window.
A. Use an auxiliary CT if conductors do not fi t. Consult
2. Mount the detector to a surface if needed.
3. Connect output & power wiring.
A. Use 22-14 AWG copper conductors rated 75°C
B. Make sure load matches the output shown on the
C. Make sure power supply matches the power input
4. Test.
A. Pressing the "TEST" button tests the detectors
AG 1, 2 & 3 SERIES
Ground Fault Detectors
Solid State Auto-Reset
Factory for CT selection.
minimum. Tighten to 9 inch-pounds.
detectors' label.
Detectors labeled "xxAC" will only switch AC
load.
Detectors labeled "xxDC" will only switch DC
load.
shown on the label.
internal circuits. CAUTION: The output and any
connected loads will switch!
490100002 Rev 7

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Summary of Contents for NK TECHNOLOGIES AG 1 Series

  • Page 1 Specifi cations Model Number Key Power Supply 120 VAC (66-132 volts, 50-60 Hz) AG1-NCAC-120 -FS - 005 2.5 VA consumption 240 VAC (200-240 volts, 50-60 Hz) Setpoint: INSTRUCTIONS 2.9 VA consumption 005 to 950 - Factory Adjusted 24 VAC or VDC (19-29 volts) Setpoint in mA (specify 2.5 VA consumption when ordering)
  • Page 2 Description Installation & Wiring AG Series ground fault detectors work in the same environ- AG Series ground fault detectors monitor all current carry- ment as motors, contactors, heaters, pull-boxes, and other ing wires in single or three phase systems to detect ground electrical enclosures.

This manual is also suitable for:

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