Sensing currents

December 14, 2011
Sensing currents
NK Technologies introduces the AS1 Series Compact Case Current Sensing Switch. With its tiny 1-inch housing, the AS1 is a compact and cost-effective solution that enables users to monitor an energized circuit in tight spaces. The easy-to-use ring design easily slips onto a conductor to reliably detect currents as low as 0.5A with a single conductor pass, eliminating the need to wrap conductors multiple times. Reliable, solid-state output with no moving parts provides a nearly unlimited number of operations. The AS1 has 24-inch leads that can be connected directly to controller input terminals or brought out to a terminal block to facilitate remote operation. The contact can control either AC or DC circuits to 120 volts, with a maximum load capacity of 150mA. There is near zero off-state leakage providing positive indication of the presence of AC current, and the output easily handles the coil of an industrial quality relay. This current sensing switch is powered directly from the monitored circuit to monitor and report electric motor load status, identify open heater circuit connections and independently verify that a load is energized. It is also useful for confirming current flow to and operation of critical lighting and other equipment such as fans, heaters, pumps or other AC-powered devices. The AS1 is rated for use in ambient temperatures ranging from -4 to 122 degrees F (-20 to 50 degrees C).
www.nktechnologies.com

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