Catalog excerpts
ISOMETER® IR423 Insulation monitoring device for mobile generators
Open the catalog to page 1Insulation monitoring device for mobile generators Product description The ISOMETER® of the IR423 series monitors the insulation resistance RF of an unearthed AC system of 0…300 V to earth that is supplied by a mobile generator. The IR423 is suitable for AC systems with operating frequencies ≥ 30 Hz as well as for AC systems with directly connected DC circuits. The maximum permissible system leakage capacitance Cemax is 5 µF. Application • EC 60364-7-717, DIN VDE 0100-717 (2005) Electrical installations in mobile or I transportable units • IN VDE 0100-551 (VDE 0100-551), IEC 60364-5-551...
Open the catalog to page 21 - Power On LED "ON", flashes in case of interruption of the connecting leads E/KE or L1/L2 2 - Alarm LED "AL1", lights when the value falls below the set response value Alarm 1 and flashes in case of interruption of the connecting leads E/KE or L1/L2 3 - Alarm LED "AL2", lights when the value falls below the set response value Alarm 2 and flashes in case of interruption of the connecting leads E/KE or L1/L2 4 - LC display 5 - Test button "T": to call up the self test. Arrow up button: parameter change, to move up in the menu 6 - Reset button "R": to delete stored insulation fault alarms...
Open the catalog to page 3Examples of application Protective measure for mobile geneerators: "Protection by electrical separation with insulation monitoring and disconnection" Setting K1/K2 for overvoltage release: N/O operation (n.o.); Fault memory setting: OFF Setting K1/K2 for contactor: N/C operation (n.c.), fault memory setting: ON
Open the catalog to page 4Technical data Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Rated insulation voltage 250 V Rated impulse voltage/pollution degree 4 kV/3 Protective separation (reinforced insulation) between (A1, A2) - (L1, L2, E, KE, T/R) - (11, 12, 14) - (21, 22, 24) Voltage test acc. to IEC 61010-1 2.21 kV Supply voltage Supply voltage US Frequency range US Power consumption IT system being monitored Nominal system voltage Un Nominal frequency fn Response values Response value Rani (Alarm 1) Response value Ran2 (Alarm 2) Relative uncertainty 1.. .5 kfi/5...200 kfi Hysteresis 1.5...
Open the catalog to page 5Ordering information E& BENDER The Power in Electrical Safety6 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Gruenberg • Germany Londorfer Strasse 65 • 35305 Gruenberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-Mail: info@bender.de • www.bender.de
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