insulation monitoring device for unearthed AC/DC control circuits (IT systems)

ooooooo Device features • Insulation monitoring for AC/DC control circuits 0.300 V • Two separately adjustable response values • Preset function (automatic setting of basic parameters) • Connection monitoring system/earth • LEDs: Power On, Alarm 1, Alarm 2 • Internal/external test/reset button • Two separate alarm relays (one changeover contact each) • Fault memory behaviour, selectable • Self monitoring with automatic alarm • Adjustable response delay • Push-wire terminal Insulation monitoring device for unearthed AC/DC control circuits (IT systems) Product description The ISOMETER®s of the...

Operating elements Device front Element

Technical data Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Switching elements Rated insulation voltage 250 V Rated impulse voltage/Pollution degree 4 kV/3 Protective separation (reinforced insulation) between: Number of Operating principle Electrical endurance Contact data according IEC 60947-5-1 Utilization category Rated operational voltage Rated operational current Minimum current Supply voltage IR425-D4-1, IR425-D4W-1: Supply voltage Us Frequency range Us IR425-D4-2, IR425-D4W-2: Supply voltage Us Frequency range Us Power consumption IT System being monitored Nominal system voltage...

RBENDER Ordering information

Bender GmbH & Co. KG Londorfer Straße 65 35305 Grünberg Germany Tel.: +49 6401 807-0 [email protected] www.bender.de © Bender GmbH & Co. KG, Germany Subject to change! The specified standards take into account the edition valid until 07.2027 unless otherwise indicated.