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The HW group Power Detector 110-230V US detects the presence of mains voltage between 110 and 230 V AC. The US version is supplied with the matching wall plug. An electrically isolated relay output reports the status to the digital input of a compatible HW group monitoring device.
The normally open contact (NO) closes when voltage is present and opens if it fails. The output connects via a two-wire cable and is rated for a maximum of 50 V and 130 mA. The connected monitoring device can use this status change to trigger an alert. The detector reports voltage presence and does not provide a numerical voltage reading.