Insulation monitoring device for unearthed AC/3(N)AC systems up to 480 V and DC systems up to 480 V

_ Z BENDER Insulation monitoring device for unearthed AC/3(N)AC systems up to 480 V and DC systems up to 480 V Product description The ISOMETER® of the IR1575 series monitor the insulation resistance of unearthed main circuits (IT systems) AC, 3(N)AC 0...480 V resp. DC 0... 480 V. The AMP measurement method allows the Isometers to be used in systems with directly connected DC components. Taking the system leakage capacitances into account, the IR1575 automatically adapts itself to the existing system conditions in order to optimise the measuring time. An external supply voltage allows de-energised...

Wiring diagram – Operating elements Wiring diagram – Mains connection 1 - “ TEST” button: to call up the self test Arrow up button: Parameter changes, scroll 2 - “ RESET” button: to delete alarm and fault messages Arrow down button: Parameter changes, scroll 3 - “ MENU” button: to call up the menu system Enter button: to confirm parameter changes 4 - LC display 2 x 16 characters 5 - Alarm LED “1” lights: insulation fault, first warning level reached 6 - Alarm LED “2” lights: insulation fault, second warning level reached 7 - External test button “T1/T2” (N/O contact) 8 - E xternal reset button...

insulation coordination acc. to IEC 60664-1 Rated insulation voltage AC 500 V Rated impulse withstand voltage/pollution degree 4 kV/3 Voltage ranges Nominal system voltage Un Nominal frequency fn Supply voltage Us Power consumption Switching elements Number of switching elements Operating principle Factory setting Contact class Rated contact voltage Making capacity Breaking capacity Response values Response value Ran1 (Alarm 1) Response value Ran2 (Alarm 2) Relative uncertainty Response time fan at Rf = 0.5 x Ran and Ce = 1 pF Hysteresis Measuring voltage Um Measuring current Im (at Rf = 0 fi)...

Measuring time Dimension diagram Dimensions in mm Ordering information Design Standard Increased shock and vibration resistance 1) Absolute values

BENDER Group IR1575_D00116_01_D_XXEN / 11.2019 / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the edition valid until 11.2019 unless otherwise indicated. 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: [email protected] • w