• Under or Over voltage monitoring (selectable)
• Adjustable Trip level, Hysteresis and Time delay + Latch
• Isolated Auxiliary supply
• SPDT Relay output
• 17.5mm wide, DIN Rail mount
• UL Listed
The product is designed to monitor voltage across a load (for example). An auxiliary supply (required to power the unit) must be present for the product to function.
Two monitoring modes available:
Under voltage:
In normal operation, the relay is in the energised state (monitored voltage above the set trip level). When the voltage decreases below the trip level, the relay will de-energise after the set delay. The voltage must increase above the trip level plus the hysteresis before the relay will re-energise.
Over voltage:
In normal operation, the relay is in the energised state (monitored voltage below the set trip level). When the voltage increases above the trip level, the relay will de-energise after the set delay. The voltage must decrease below the trip level minus the hysteresis before the relay will re-energise.
Specification
• Monitoring function: Under or Over voltage
• Monitored voltage ranges: 0.1 – 1V, 0.2 – 2V, 0.5 – 5V, 1 – 10V or 2 – 20V AC/DC
• Trip level: 10 – 100% of selected range
• Hysteresis: 2 or 10%
• Time delay: 0.1 – 30s
• Aux. supply voltage*: 12 – 60V AC/DC or 24 – 230V AC/DC
• Output: SPDT 8A @ 250V (AC1)
• Dimensions(mm): W:17.5 x H:89 x D:66.5