Voltage Relay BA 9037 The voltage relay BA 9037 of the VARIMETER series monitors DC or AC networks for overvoltages and undervoltages. The measurement is very simple and can be carried out without much wiring effort, as no separate auxiliary voltage is required. Early detection of impending failtures and preventive maintenance prevent costly damage and as a user you benefit from the operational safety and high availability of your system. Features . According to IEC/EN 60255-1 . Single phase . Measuring ranges from 24 to 400 V . Response and release value adjustable independent of each other . Under- and overvoltage detection . Without auxiliary supply . Large setting range . With time delay . Closed circuit operation . Insensitive to harmonics . LED indicators for operation and state of contacts . Width 45 mm Technical specifications Width: 45mm Operate delay: Yes Enclosure design: Switch cabinet 1- / 3-phase: 1 Output contacts: 2 C/O contacts Auxiliary voltage: Without Type: BA 9037 Nominal voltage max.: AC 400V Manufacturer: E. Dold & Söhne GmbH & Co. KG Type: BA9037.12/001 AC50/60HZ 230V Art. No.: 0030028