Voltage and frequency monitor RP 9800 With the voltage and frequency monitor RP 9800, DOLD offers a possibility to disconnect self-generating systems from the low-voltage grid in case of impermissible voltage and frequency values. The voltage and frequency increase or decrease, the reconnection time and the average value of the voltage increase over 10 minutes can be set individually as required using rotary switches. Advantages . Easy adjustment via rotational switch . Precise adjustment and indication of setting values . Protection against manipulation by sealable transparent cover over setting switches Features . According to DIN EN 60255-1, DIN EN 60947-1 . Voltage and frequency monitoring for generator sets > 30 kVA on public grid, according to VDEW directive . RP 9800: 3-phase voltage measurement to neutral . Disconnection on rise and drop of voltage . Disconnection on rise and drop of frequency . Disconnection when 10 minute mean value differs to nominal voltage (overvoltage) . Frequency and voltage are indicated by separate output relays . Permits connection or re-connection after adjustable time delay tw . High measuring accuracy . Width 70 mm Technical specifications Width: 70mm Operate delay: Yes Enclosure design: Distribution board 1- / 3-phase: 3 Output contacts: 2 C/O contacts Auxiliary voltage: Without Type: RP 9800 Supply voltage: 3/N AC 400/230, 3/N AC 300/173, 3/N AC 315/182V Manufacturer: E. Dold & Söhne GmbH & Co. KG Type: RP9800.12 3/N AC400/230V tw=90S Art. No.: 0062263