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| Item number: 2794E-1812790 Manufacturer no.: MK9837N.12 5-600Hz UH=AC230V EAN/GTIN: n/a |
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| Detection of over- or under frequency of alternating voltage (adjustable function) Fast reaction time by measuring duration of cycle of input frequency Universal measuring input for AC-voltages of 15 .. 280 V as well as 30 .. 550 V As option with measuring input for inverters Adjustable hysteresis Adjustable monitoring time for missing input signal at function over frequency Response delay programmable via terminals 0 .. 100 s Alarm storing or auto-reset programmable via terminals Galvanic separation between measuring input, auxiliary voltage and output contacts MH 9837 available with wide input range for auxiliary supply (AC/DC 24 .. 60 V or AC/DC 110 .. 230 V) 2 changeover contacts, closed circuit operation Open circuit operation on request LED indication for auxiliary voltage, measuring voltage and alarm status MH 9837.12/008: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency Device available with 2 response values and separately controlled output relays for under- and over frequency see MK 9837N/500 More information: | | Monitoring Application: | Frequency | Contact Configuration: | DPDT | Voltage Sensing Range: | 15 → 280 V ac, 30 → 550V ac | Mounting Type: | DIN Rail | Time Delay: | 0 → 100 s, 0 → 50s | Frequency Sensing Range: | 5 → 600Hz | Series: | MK9837N | Dimensions: | 97 x 22.5 x 90mm | Frequency Sensitivity: | Overfrequency, Underfrequency | Height: | 90mm | Length: | 97mm | Maximum Frequency Sensed: | 500Hz | Maximum Operating Temperature: | +60°C | Maximum Voltage Sensed: | 280 V ac, 550V ac | Minimum Frequency Sensed: | 5Hz |
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