Voltage Output Analog Current Sensors
Installation and Operation
#NSA-A/SCTE2-50, NSA-A/SCTE2-150, NSA-A/SCTE2-250, NSA-A/SCTV2-50, NSA-A/SCTV2-150, NSA-A/SCTV2-250
11/14/2019
Specifications subject to change without notice.
Catalog No. 11-808-790-01
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Installation
Precautions
This product is not intended to be used for Life or Safety applications.
This product is not intended for use in any hazardous or classified locations.
Current Sensors must be used on Insulated Conductors Only.
High Voltage
Disconnect and lock out all power sources before installation as severe injury or death may result from
electrical shock due to contact with high voltage wires.
Ensure all installations are in compliance with all national and local electrical codes. Only qualified individuals that are
familiar with codes, standards, and proper safety procedures for high-voltage installations should attempt installation.
General
The current sensor will not require external power, since the power for the current sensor is induced from the conductor
being monitored. The current sensor may be mounte
d in any position using the two #8 x ¾” Tek screws and the mounting
holes in the base, or snapped directly on to the 35mm DIN rail (See Figure 3
). Leave a minimum distance of 1” (3 cm)
between the current sensor and any other magnetic devices such as contactors and transformers.
Latch Operation
Press down on the side tab and swing the top of the unit up to open the split core current sensor as shown in Figure 2.
Press down firmly on the cover to close the current sensor. An audible “click” will be heard as the tab slides over the
tongue on the base.
Figure 2
CAUTION
Mating surfaces of the magnetic core are exposed when the sensor is open. Electrical contact grease, present
on the cores to prevent corrosion, can capture grit and dirt if care is not exercised. Operation can be impaired if anything
prevents good contact between pole pieces. Visually check the mating parts of the core before closing the current sensor.
Current Sensor Setup
The amperage range selected represents the maximum current that can be applied to the conductor being monitored, Do
not exceed! All current sensors with selectable ranges will have the range selection jumper factory set on the high range.
For models with field selectable amperage ranges, select the correct amperage range using the range selection jumper.
