Catalogs >
BENDER >
ISOMETER® IRDH575

ISOMETER® IRDH575
8Pages

Catalog excerpts

ISOMETER® IRDH575 Insulation monitoring device for unearthed AC, DC and AC/DC systems (IT systems) with control and display function for EDS insulation fault location systems

Open the catalog to page 1

Insulation monitoring device for unearthed AC, DC and AC/DC systems (IT systems) with control and display function for EDS insulation fault location systems Product description The ISOMETER® of the IRDH575 series monitors the insulation resistance of unearthed power supplies (IT systems). It is suitable for universal use in 3(N)AC, AC/DC and DC systems. AC systems may include extensive DC-supplied loads, such as converters or thyristor-controlled DC drives. The IRDH575 in combination with EDS4… series insulation fault locators and the appropriate measuring current transformers is designed...

Open the catalog to page 2

Wiring diagram Operating elements 1 - INFO” button: to query standard information “ ESC button: back (menu function), confirms parameter changes 2 - TEST” button: to call up the self test (Isometer function only) “ Arrow up button: parameter change, to move up in the menu 3 - RESET” button: to delete insulation fault alarms “ (Isometer function only) Arrow down button: arameter change, to move down in the p menu 4 - MENU” button: to call up the menu system. “ Enter button: to confirm parameter changes 1 For - external indicating instrument Current output 0…20 mA or 4…20 mA *2 - External...

Open the catalog to page 3

Characteristic curve – Max. AC voltage between system and earth in the frequency range < 50 Hz Characteristic curve response times tan [sec] Wiring diagram – rear view

Open the catalog to page 4

Typical circuit EDS460 insulation fault location system with IRDH575 Typical circuit EDS461 insulation fault location system with IRDH575 EDS system with IRDH575, EDS460 and measuring current transformers W… in a 3AC system 1 - 3AC, 3NAC, DC 20…575 V bzw. 3AC, 3NAC, DC 340…760 V 1 - AC 20…265V/DC 20 V…308 V 2 - S see ordering information, 6 A fuse recommended. U Note: Supply voltage US in the IT system requires two fuses. 2 - S see ordering information, 6 A fuse recommended. U Note: Supply voltage US in the IT system requires two fuses. 3 - Measuring current transformers W…/8000 3 -...

Open the catalog to page 5

Insulation coordination acc. to IEC 60664-1 Rated insulation voltage Rated impulse voltage/pollution degree Voltage ranges IRDH575B1-4235: Nominal system voltage Un Nominal frequency fn Nominal system voltage Un IRDH575B1-435: Nominal system voltage Un Nominal frequency fn Nominal system voltage Un IRDH575B2-435: Nominal system voltage Un Nominal frequency fn Nominal system voltage Un IRDH575B1-435: Supply voltage Us (also see nameplate) Frequency range Us Supply voltage Us (also see nameplate) IRDH575B1-427: Supply voltage Us (also see nameplate) Power consumption Max. cable length <...

Open the catalog to page 6

Ordering information Permissible extraneous DC voltage Ufg DC Nominal system voltage Un AC 1) Measuring voltage Um 10 V (version -4227) for usage in control circuits Device “Option-W” with increased resistance to shock and vibrations: Indicated by the letter “W” at the end of the order number. Suitable system components Dimension diagram X500 Dimensions in mm Panel seal for IP 42 Transparent cover for IP 65 Adapter for DIN rail mounting

Open the catalog to page 7

BENDER Group IRDH575_D00089_00_D_XXEN / 06.2015 / pdf / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the version that was valid at the time of printing. 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 • w

Open the catalog to page 8

ISOMETER® IRDH575 8Pages

Catalog excerpts

All BENDER catalogs and technical brochures

ISOMETER® IRDH575
8Pages