NK TECHNOLOGIES AG1 Series Instructions

Specifi cations
Power Supply 120 VAC (66-132 volts, 50-60 Hz)
2.5 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,
select
Isolation Voltage Up to 1500 VAC
Frequency Range 50-400 Hz (monitored circuit)
Output Rating Latching electromechanical relay
1.0 A @ 120 VAC, 2 A @ 30 VDC maximum
NOR latches closed upon sensed fault current
NCR latches open upon sensed fault current
Status (Red) LED = Relay has operated
Response Time 150 ms @ 5% over setpoint
100 ms @ 50% over setpoint
50 ms @ 500% over setpoint
Dimensions 2.98"H x 3.86"W x 1.45"D
(76 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
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
AG 1 - NCR1 - 120 - LA - 005 - N
jumper
POWER SUPPLY:
24U - 24 VAC/VDC
120 - 120 VAC
OUTPUT TYPE:
NOR1 - Normally Open (Form A)
NCR1 - Normally Closed (Form B)
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
Know Your Power
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 that
switches 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
NOISE IMMUNITY:
N - Noise Immunity
None (Blank)
SETPOINT:
005 to 950 - Factory Adjusted
Setpoint in mA (specify
when ordering)
TR3 - Tri-Set, 5, 10 & 30 mA,
Jumper Select
OPTIONS:
LA - Latching
INSTRUCTIONS
AG1, 2 & 3 SERIES
Ground Fault Detectors
with Latching Relay Outputs
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
Factory for CT selection.
2. Mount the detector to a surface if needed.
3. Connect output & power wiring.
A. Use 22-14 AWG copper conductors rated 75°C
minimum. Tighten to 5-7 inch-pounds.
B. Make sure power and load matches those shown on
the sensor's label.
4. Test.
A. Pressing the "TEST" button tests the detectors
internal circuits. CAUTION: The output and any
connected loads will switch!
490050006 Rev 6