Latching relay by Xiamen Hongfa Electoacoustic Co Ltd, is a newly developed relay in recent years which is also an auto switch. The difference is the latching relay rely on the magnetic steel to maintain the NO or NC status. The on-off switch is triggered by a pulse signal with certain width. The latching relay is mainly applied in 4 fields which are smart meter, relay protection for electric power system, industrial control & home appliance.
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