Adjustable Current Switches
Installation and Operation
#NSA-A/ACS2, NSA-A/ASCS2, NSA-A/ASCS2-L
– 11/14/2019
Specifications subject to change without notice.
Catalog No. 11-808-743-01
Page
3
of
7
Split Core
Front View
Right View
Bottom View
Figure 1
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.
The NSA-A/ACS2 and NSA-A/ASCS2 Series Current Switches 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.
Never rely on the Red LED to determine whether power is present at the current switch. At very low monitored
input currents the Red LED may not light to indicate the current is above the trip point.
Installation
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. The
current switches will not require external power because the power for the current switch is induced from the conductor
being monitored. The current switch may be mounted in any position using the two #8 x 3/4” Tek screws and the mounting
holes in the base, or snapped directly on to the 35mm DIN rail (Figure 3
). Leave a minimum distance of 1” (3 cm) between
the current switch and any other magnetic devices such as contactors and transformers.
