Industrial 829R-115 Sensor

CALEX 829R-115 Linesensor is an AC‑line voltage monitor with a SPDT relay output designed to trigger when the supply stays within a user‑adjustable window around 115 VAC. It accepts nominal 115 VAC input (50–440 Hz) and can be configured for other line voltages with the 829R family variant (for example, 829R‑220). The output is a relay with a contact rating of 1 A at 26 VDC or 0.5 A at 115 VAC and 500 VRMS isolation; the logic is energized when the input voltage lies inside the preset window (failsafe). Trip‑point adjust ranges for 115 VAC offer two HI/LO windows: roughly 100–122 V (HI) / 78–96 V (LO) and 115–140 V (HI) / 90–110 V (LO), depending on version. Power is drawn from the AC line (up to 3 W); no DC supply is required. Response time to a change in average line voltage is up to 100 ms, with a line‑dropout response of about 20 ms (60 Hz) and up to 25 ms at 50 Hz. Operating temperature is 0°C to +70°C. Physical dimensions measure 3.75" × 1" × 2.7" and the unit weighs roughly 9 oz. CALEX lists the 829R‑115 as discontinued by the manufacturer, a status reflected in current catalog references.